From 8b3075207cea8ed6487f71824eb2a3b8f3c83ec9 Mon Sep 17 00:00:00 2001
From: John Ed Quinn <johqunn@amazon.com>
Date: Wed, 16 Aug 2023 14:40:03 -0700
Subject: [PATCH] Adds syntactical support for CREATE FUNCTION

---
 .../src/main/resources/partiql_ast.ion        |  60 +++++
 partiql-parser/src/main/antlr/PartiQL.g4      | 145 +++++++++++
 .../src/main/antlr/PartiQLTokens.g4           |   4 +
 .../parser/impl/PartiQLParserDefault.kt       |  77 ++++++
 .../resources/built-in-functions/README.md    | 157 ++++++++++++
 .../partiql-converted/ABSDECIMALP_S.sql       |   5 +
 .../partiql-converted/ABSDOUBLEPRECISION.sql  |   5 +
 .../partiql-converted/ABSFLOATBP.sql          |   5 +
 .../partiql-converted/ABSINTEGER.sql          |   5 +
 .../partiql-converted/ABSNUMERICP_S.sql       |   5 +
 .../partiql-converted/ABSREAL.sql             |   5 +
 .../partiql-converted/ABSSMALLINT.sql         |   5 +
 .../partiql-converted/BIT_LENGTH1.sql         |   5 +
 .../partiql-converted/BIT_LENGTH2.sql         |   5 +
 .../partiql-converted/CHARACTER_LENGTH1.sql   |   5 +
 .../partiql-converted/CHARACTER_LENGTH2.sql   |   5 +
 .../partiql-converted/CHAR_LENGTH1.sql        |   5 +
 .../partiql-converted/CHAR_LENGTH2.sql        |   5 +
 .../partiql-converted/LOWER1.sql              |   5 +
 .../partiql-converted/LOWER2.sql              |   5 +
 .../MODDECIMALMP_DECIMALP.sql                 |   6 +
 .../MODDECIMALMP_INTEGER.sql                  |   6 +
 .../MODDECIMALMP_NUMERICP.sql                 |   6 +
 .../MODDECIMALMP_SMALLINT.sql                 |   6 +
 .../partiql-converted/MODINTEGER_DECIMALP.sql |   6 +
 .../partiql-converted/MODINTEGER_INTEGER.sql  |   6 +
 .../partiql-converted/MODINTEGER_NUMERICP.sql |   6 +
 .../partiql-converted/MODINTEGER_SMALLINT.sql |   6 +
 .../MODNUMERICMP_DECIMALP.sql                 |   6 +
 .../MODNUMERICMP_INTEGER.sql                  |   6 +
 .../MODNUMERICMP_NUMERICP.sql                 |   6 +
 .../MODNUMERICMP_SMALLINT.sql                 |   6 +
 .../MODSMALLINT_DECIMALP.sql                  |   6 +
 .../partiql-converted/MODSMALLINT_INTEGER.sql |   6 +
 .../MODSMALLINT_NUMERICP.sql                  |   6 +
 .../MODSMALLINT_SMALLINT.sql                  |   6 +
 .../partiql-converted/OCTET_LENGTH1.sql       |   5 +
 .../partiql-converted/OCTET_LENGTH2.sql       |   5 +
 .../partiql-converted/POSITION1.sql           |   6 +
 .../partiql-converted/POSITION2.sql           |   6 +
 .../partiql-converted/POSITION3.sql           |   6 +
 .../partiql-converted/POSITION4.sql           |   6 +
 .../partiql-converted/SUBSTRING1.sql          |   7 +
 .../partiql-converted/SUBSTRING2.sql          |   7 +
 .../partiql-converted/SUBSTRING3.sql          |   6 +
 .../partiql-converted/SUBSTRING4.sql          |   6 +
 .../partiql-converted/UPPER1.sql              |   5 +
 .../partiql-converted/UPPER2.sql              |   5 +
 .../built-in-functions/sql/ABSDECIMALP_S.sql  |   5 +
 .../sql/ABSDOUBLEPRECISION.sql                |   5 +
 .../built-in-functions/sql/ABSFLOATBP.sql     |   5 +
 .../built-in-functions/sql/ABSINTEGER.sql     |   5 +
 .../built-in-functions/sql/ABSNUMERICP_S.sql  |   5 +
 .../built-in-functions/sql/ABSREAL.sql        |   5 +
 .../built-in-functions/sql/ABSSMALLINT.sql    |   5 +
 .../built-in-functions/sql/BIT_LENGTH1.sql    |   5 +
 .../built-in-functions/sql/BIT_LENGTH2.sql    |   5 +
 .../sql/CHARACTER_LENGTH1.sql                 |   5 +
 .../sql/CHARACTER_LENGTH2.sql                 |   5 +
 .../built-in-functions/sql/CHAR_LENGTH1.sql   |   5 +
 .../built-in-functions/sql/CHAR_LENGTH2.sql   |   5 +
 .../built-in-functions/sql/LOWER1.sql         |   5 +
 .../built-in-functions/sql/LOWER2.sql         |   5 +
 .../sql/MODDECIMALMP_DECIMALP.sql             |   6 +
 .../sql/MODDECIMALMP_INTEGER.sql              |   6 +
 .../sql/MODDECIMALMP_NUMERICP.sql             |   6 +
 .../sql/MODDECIMALMP_SMALLINT.sql             |   6 +
 .../sql/MODINTEGER_DECIMALP.sql               |   6 +
 .../sql/MODINTEGER_INTEGER.sql                |   6 +
 .../sql/MODINTEGER_NUMERICP.sql               |   6 +
 .../sql/MODINTEGER_SMALLINT.sql               |   6 +
 .../sql/MODNUMERICMP_DECIMALP.sql             |   6 +
 .../sql/MODNUMERICMP_INTEGER.sql              |   6 +
 .../sql/MODNUMERICMP_NUMERICP.sql             |   6 +
 .../sql/MODNUMERICMP_SMALLINT.sql             |   6 +
 .../sql/MODSMALLINT_DECIMALP.sql              |   6 +
 .../sql/MODSMALLINT_INTEGER.sql               |   6 +
 .../sql/MODSMALLINT_NUMERICP.sql              |   6 +
 .../sql/MODSMALLINT_SMALLINT.sql              |   6 +
 .../built-in-functions/sql/OCTET_LENGTH1.sql  |   5 +
 .../built-in-functions/sql/OCTET_LENGTH2.sql  |   5 +
 .../built-in-functions/sql/POSITION1.sql      |   6 +
 .../built-in-functions/sql/POSITION2.sql      |   6 +
 .../built-in-functions/sql/POSITION3.sql      |   6 +
 .../built-in-functions/sql/POSITION4.sql      |   6 +
 .../built-in-functions/sql/SUBSTRING1.sql     |   7 +
 .../built-in-functions/sql/SUBSTRING2.sql     |   7 +
 .../built-in-functions/sql/SUBSTRING3.sql     |   6 +
 .../built-in-functions/sql/SUBSTRING4.sql     |   6 +
 .../built-in-functions/sql/UPPER1.sql         |   5 +
 .../built-in-functions/sql/UPPER2.sql         |   5 +
 .../sql/parse-failures/ABSINTERVALDAYIP.sql   |   7 +
 .../parse-failures/ABSINTERVALDAYIP_HOUR.sql  |   6 +
 .../ABSINTERVALDAYIP_MINUTE.sql               |   6 +
 .../ABSINTERVALDAYIP_SECONDIS.sql             |   6 +
 .../sql/parse-failures/ABSINTERVALHOURIP.sql  |   7 +
 .../ABSINTERVALHOURIP_MINUTE.sql              |   6 +
 .../ABSINTERVALHOURIP_SECONDIS.sql            |   6 +
 .../parse-failures/ABSINTERVALMINUTEIP.sql    |   6 +
 .../ABSINTERVALMINUTEIP_SECONDIS.sql          |   6 +
 .../sql/parse-failures/ABSINTERVALMONTHIP.sql |   6 +
 .../parse-failures/ABSINTERVALSECONDIP_IS.sql |   6 +
 .../sql/parse-failures/ABSINTERVALYEARIP.sql  |   6 +
 .../ABSINTERVALYEARIP_MONTH.sql               |   6 +
 .../sql/parse-failures/BIT_LENGTH3.sql        |   5 +
 .../sql/parse-failures/BIT_LENGTH4.sql        |   6 +
 .../sql/parse-failures/CHARACTER_LENGTH3.sql  |   6 +
 .../sql/parse-failures/CHARACTER_LENGTH4.sql  |   6 +
 .../sql/parse-failures/CHAR_LENGTH3.sql       |   5 +
 .../sql/parse-failures/CHAR_LENGTH4.sql       |   6 +
 .../sql/parse-failures/OCTET_LENGTH3.sql      |   5 +
 .../sql/parse-failures/OCTET_LENGTH4.sql      |   5 +
 .../sql/parse-failures/SUBSTRING5.sql         |   7 +
 .../sql/parse-failures/SUBSTRING6.sql         |   7 +
 .../sql/parse-failures/SUBSTRING7.sql         |   6 +
 .../sql/parse-failures/SUBSTRING8.sql         |   6 +
 .../parser/impl/PartiQLParserDefaultTests.kt  | 237 ++++++++++++++++++
 117 files changed, 1312 insertions(+)
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/README.md
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSDECIMALP_S.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSDOUBLEPRECISION.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSFLOATBP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSINTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSNUMERICP_S.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSREAL.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSSMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/BIT_LENGTH1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/BIT_LENGTH2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHARACTER_LENGTH1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHARACTER_LENGTH2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHAR_LENGTH1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHAR_LENGTH2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/LOWER1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/LOWER2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_DECIMALP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_INTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_NUMERICP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_SMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_DECIMALP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_INTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_NUMERICP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_SMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_DECIMALP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_INTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_NUMERICP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_SMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_DECIMALP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_INTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_NUMERICP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_SMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/OCTET_LENGTH1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/OCTET_LENGTH2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION3.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION4.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING3.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING4.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/UPPER1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/partiql-converted/UPPER2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/ABSDECIMALP_S.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/ABSDOUBLEPRECISION.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/ABSFLOATBP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/ABSINTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/ABSNUMERICP_S.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/ABSREAL.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/ABSSMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/BIT_LENGTH1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/BIT_LENGTH2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/CHARACTER_LENGTH1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/CHARACTER_LENGTH2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/CHAR_LENGTH1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/CHAR_LENGTH2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/LOWER1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/LOWER2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_DECIMALP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_INTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_NUMERICP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_SMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_DECIMALP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_INTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_NUMERICP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_SMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_DECIMALP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_INTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_NUMERICP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_SMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_DECIMALP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_INTEGER.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_NUMERICP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_SMALLINT.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/OCTET_LENGTH1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/OCTET_LENGTH2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/POSITION1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/POSITION2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/POSITION3.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/POSITION4.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING3.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING4.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/UPPER1.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/UPPER2.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_HOUR.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_MINUTE.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_SECONDIS.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP_MINUTE.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP_SECONDIS.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMINUTEIP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMINUTEIP_SECONDIS.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMONTHIP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALSECONDIP_IS.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALYEARIP.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALYEARIP_MONTH.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/BIT_LENGTH3.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/BIT_LENGTH4.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHARACTER_LENGTH3.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHARACTER_LENGTH4.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHAR_LENGTH3.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHAR_LENGTH4.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/OCTET_LENGTH3.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/OCTET_LENGTH4.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING5.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING6.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING7.sql
 create mode 100644 partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING8.sql
 create mode 100644 partiql-parser/src/test/kotlin/org/partiql/parser/impl/PartiQLParserDefaultTests.kt

diff --git a/partiql-ast/src/main/resources/partiql_ast.ion b/partiql-ast/src/main/resources/partiql_ast.ion
index e4cf854f28..380f4c26fa 100644
--- a/partiql-ast/src/main/resources/partiql_ast.ion
+++ b/partiql-ast/src/main/resources/partiql_ast.ion
@@ -114,6 +114,33 @@ statement::[
       definition: optional::table_definition,
     },
 
+    // CREATE FUNCTION
+    create_function::{
+      specification: specification,
+      body: routine_body,
+      _: [
+        specification::{
+          name: '.identifier.qualified',
+          parameters: list::[parameter_declaration],
+          returns: returns,
+          characteristics: list::[routine_characteristic],
+        },
+        parameter_declaration::{
+          name: optional::'.identifier.symbol',
+          type: '.type'
+        },
+        // SQL:1999
+        // <returns clause> ::= RETURNS <returns data type> [ <result cast> ]
+        // <returns data type> ::= <data type> [ <locator indication> ]
+        // <result cast> ::= CAST FROM <result cast from type>
+        // <result cast from type> ::= <data type> [ <locator indication> ]
+        // TODO: Eventually add other grammatical rules here
+        returns::{
+          type: '.type'
+        }
+      ]
+    },
+
     // CREATE INDEX [<identifier>] ON <identifier> (<path> [, <path>]...)
     create_index::{
       index:  optional::identifier,
@@ -133,6 +160,19 @@ statement::[
     },
   ],
 
+  // SQL:1999
+  // <SQL control statement> ::=
+  //     <call statement>
+  //     | <return statement>
+  // <return statement> ::=
+  //     RETURN <return value>
+  // <return value> ::=
+  //     <value expression>
+  //     | NULL
+  return::{
+    value: expr
+  },
+
   // EXEC <symbol> [<expr>.*]
   exec::{
     procedure: string,
@@ -149,6 +189,26 @@ statement::[
       },
     ],
   },
+
+  _::[
+    // SQL:1999
+    // <routine body> ::=
+    //     <SQL routine body>            <-- nicknaming this `internal`
+    //     | <external body reference>   <-- nicknaming this `external`
+    routine_body::[
+      // SQL:1999
+      // <SQL routine body> (nicknamed `internal`) ::= <SQL procedure statement>
+      // Note: Semantic pass should ensure the statement is a procedure statement.
+      internal::{
+        procedure_statement: statement
+      }
+    ],
+    routine_characteristic::[
+      specific::{
+        name: '.identifier.qualified'
+      }
+    ]
+  ]
 ]
 
 // PartiQL Type AST nodes
diff --git a/partiql-parser/src/main/antlr/PartiQL.g4 b/partiql-parser/src/main/antlr/PartiQL.g4
index b7b0561bf2..1d31cfb9ff 100644
--- a/partiql-parser/src/main/antlr/PartiQL.g4
+++ b/partiql-parser/src/main/antlr/PartiQL.g4
@@ -19,8 +19,153 @@ statement
     | dml COLON_SEMI? EOF          # QueryDml
     | ddl COLON_SEMI? EOF          # QueryDdl
     | execCommand COLON_SEMI? EOF  # QueryExec
+    | sqlInvokedRoutine            # CreateRoutineStatement
     ;
 
+// SQL:1999
+// <SQL-invoked routine> ::= <schema routine>
+sqlInvokedRoutine
+    : schemaRoutine
+    ;
+
+// SQL:1999
+// <schema routine> ::=
+//     <schema procedure>
+//     | <schema function>
+schemaRoutine
+    : schemaFunction
+    ;
+
+// SQL:1999
+// <schema function> ::=
+//     CREATE <SQL-invoked function>
+schemaFunction
+    : CREATE sqlInvokedFunction
+    ;
+
+// SQL:1999
+// <SQL-invoked function> ::=
+//     { <function specification> | <method specification designator> }
+//     <routine body>
+sqlInvokedFunction
+    :
+        (
+            functionSpecification
+        ) routineBody
+    ;
+
+// SQL:1999
+// <function specification> ::=
+//    FUNCTION <schema qualified routine name>
+//        <SQL parameter declaration list>
+//        <returns clause>
+//        <routine characteristics>
+//        [ <dispatch clause> ]
+functionSpecification
+    : FUNCTION name=symbolPrimitive // FIXME: Should be schemaQualifiedRoutineName
+        sqlParameterDeclarationList
+        returnsClause
+        routineCharacteristic*
+    ;
+
+// SQL:1999
+// <routine characteristic> ::=
+//     SPECIFIC <specific name>
+//     | and many more...
+routineCharacteristic
+    : SPECIFIC specificName
+    ;
+
+// SQL:1999
+// <specific name> ::= <schema qualified name>
+specificName
+    : name=symbolPrimitive // FIXME: should be ```schemaQualifiedName```
+    ;
+
+// SQL:1999
+// <returns clause> ::= RETURNS <returns data type> [ <result cast> ]
+returnsClause
+    : RETURNS returnsDataType
+    ;
+
+// SQL:1999
+// <returns data type> ::= <data type> [ <locator indication> ]
+returnsDataType
+    : type
+    ;
+
+// SQL:1999
+// <routine body> ::=
+//     <SQL routine body>
+//     | <external body reference>
+routineBody
+    : sqlRoutineBody
+    ;
+
+// SQL:1999
+// <SQL parameter declaration list> ::=
+//     <left paren>
+//     [ <SQL parameter declaration> [ { <comma> <SQL parameter declaration> }... ] ]
+//     <right paren>
+sqlParameterDeclarationList
+    : PAREN_LEFT (sqlParameterDeclaration (COMMA sqlParameterDeclaration)* )? PAREN_RIGHT
+    ;
+
+// SQL:1999
+// <SQL parameter declaration> ::=
+//     [ <parameter mode> ] [ <SQL parameter name> ]
+//     <parameter type>
+//     [ RESULT ]
+sqlParameterDeclaration
+    : sqlParameterName? parameterType
+    ;
+
+// SQL:1999
+// <SQL parameter name> ::= <identifier>
+sqlParameterName
+    : symbolPrimitive
+    ;
+
+// SQL:1999
+// <parameter type> ::=
+//     <data type> [ <locator indication> ]
+parameterType
+    : type
+    ;
+
+// SQL:1999
+// <SQL routine body> ::= <SQL procedure statement>
+sqlRoutineBody: sqlProcedureStatement;
+
+// SQL:1999
+// <SQL procedure statement> ::= <SQL executable statement>
+sqlProcedureStatement: sqlExecutableStatement;
+
+// SQL:1999
+// <SQL executable statement> ::=
+//     <SQL control statement>
+//     | many more alternatives...
+sqlExecutableStatement
+    : sqlControlStatement
+    ;
+
+// SQL:1999
+// <SQL control statement> ::=
+//     <call statement>
+//     | <return statement>
+sqlControlStatement
+    : returnStatement
+    ;
+
+// SQL:1999
+// <return statement> ::=
+//     RETURN <return value>
+// <return value> ::=
+//     <value expression>
+//     | NULL
+returnStatement
+    : RETURN expr;
+
 /**
  *
  * COMMON STRUCTURES
diff --git a/partiql-parser/src/main/antlr/PartiQLTokens.g4 b/partiql-parser/src/main/antlr/PartiQLTokens.g4
index dd0f561246..c101d7d817 100644
--- a/partiql-parser/src/main/antlr/PartiQLTokens.g4
+++ b/partiql-parser/src/main/antlr/PartiQLTokens.g4
@@ -119,6 +119,7 @@ FOREIGN: 'FOREIGN';
 FOUND: 'FOUND';
 FROM: 'FROM';
 FULL: 'FULL';
+FUNCTION: 'FUNCTION';
 GET: 'GET';
 GLOBAL: 'GLOBAL';
 GO: 'GO';
@@ -197,6 +198,8 @@ REFERENCES: 'REFERENCES';
 RELATIVE: 'RELATIVE';
 REPLACE: 'REPLACE';
 RESTRICT: 'RESTRICT';
+RETURN: 'RETURN';
+RETURNS: 'RETURNS';
 REVOKE: 'REVOKE';
 RIGHT: 'RIGHT';
 ROLLBACK: 'ROLLBACK';
@@ -213,6 +216,7 @@ SIZE: 'SIZE';
 SMALLINT: 'SMALLINT';
 SOME: 'SOME';
 SPACE: 'SPACE';
+SPECIFIC: 'SPECIFIC';
 SQL: 'SQL';
 SQLCODE: 'SQLCODE';
 SQLERROR: 'SQLERROR';
diff --git a/partiql-parser/src/main/kotlin/org/partiql/parser/impl/PartiQLParserDefault.kt b/partiql-parser/src/main/kotlin/org/partiql/parser/impl/PartiQLParserDefault.kt
index 860a711ca6..3ea1607d7d 100644
--- a/partiql-parser/src/main/kotlin/org/partiql/parser/impl/PartiQLParserDefault.kt
+++ b/partiql-parser/src/main/kotlin/org/partiql/parser/impl/PartiQLParserDefault.kt
@@ -508,6 +508,82 @@ internal class PartiQLParserDefault : PartiQLParser {
             statementExec(procedure, args)
         }
 
+        // FUNCTION
+
+        override fun visitSqlInvokedRoutine(ctx: org.partiql.parser.antlr.PartiQLParser.SqlInvokedRoutineContext?): AstNode {
+            return super.visitSqlInvokedRoutine(ctx)
+        }
+
+        override fun visitSchemaRoutine(ctx: org.partiql.parser.antlr.PartiQLParser.SchemaRoutineContext?): AstNode {
+            return super.visitSchemaRoutine(ctx)
+        }
+
+        override fun visitSchemaFunction(ctx: org.partiql.parser.antlr.PartiQLParser.SchemaFunctionContext?): AstNode {
+            return super.visitSchemaFunction(ctx)
+        }
+
+        override fun visitSqlInvokedFunction(ctx: org.partiql.parser.antlr.PartiQLParser.SqlInvokedFunctionContext) = translate(ctx) {
+            val specification = visitFunctionSpecification(ctx.functionSpecification())
+            val body = visitRoutineBody(ctx.routineBody())
+            statementDDLCreateFunction(specification, body)
+        }
+
+        override fun visitFunctionSpecification(ctx: org.partiql.parser.antlr.PartiQLParser.FunctionSpecificationContext) = translate(ctx) {
+            val root = visitSymbolPrimitive(ctx.name)
+            val name = identifierQualified(root, emptyList())
+            val parameters = ctx.sqlParameterDeclarationList().sqlParameterDeclaration().map { decl ->
+                visitSqlParameterDeclaration(decl)
+            }
+            val returns = visitReturnsClause(ctx.returnsClause())
+            val characteristics = ctx.routineCharacteristic().map { characteristic ->
+                visitRoutineCharacteristic(characteristic)
+            }
+            statementDDLCreateFunctionSpecification(name, parameters, returns, characteristics)
+        }
+
+        override fun visitSqlParameterDeclaration(ctx: org.partiql.parser.antlr.PartiQLParser.SqlParameterDeclarationContext) = translate(ctx) {
+            val name = ctx.sqlParameterName()?.let { visitSymbolPrimitive(it.symbolPrimitive()) }
+            val type = visit(ctx.parameterType().type()) as Type
+            statementDDLCreateFunctionParameterDeclaration(name, type)
+        }
+
+        override fun visitReturnsClause(ctx: org.partiql.parser.antlr.PartiQLParser.ReturnsClauseContext) = translate(ctx) {
+            val type = visit(ctx.returnsDataType().type()) as Type
+            statementDDLCreateFunctionReturns(type)
+        }
+
+        override fun visitRoutineCharacteristic(ctx: org.partiql.parser.antlr.PartiQLParser.RoutineCharacteristicContext) = translate(ctx) {
+            val name = visitSymbolPrimitive(ctx.specificName().name)
+            val specificName = identifierQualified(name, emptyList())
+            statementRoutineCharacteristicSpecific(specificName)
+        }
+
+        override fun visitReturnStatement(ctx: org.partiql.parser.antlr.PartiQLParser.ReturnStatementContext) = translate(ctx) {
+            val expr = visitExpr(ctx.expr())
+            statementReturn(expr)
+        }
+
+        override fun visitSqlProcedureStatement(ctx: org.partiql.parser.antlr.PartiQLParser.SqlProcedureStatementContext?): AstNode {
+            return super.visitSqlProcedureStatement(ctx)
+        }
+
+        override fun visitSqlExecutableStatement(ctx: org.partiql.parser.antlr.PartiQLParser.SqlExecutableStatementContext?): AstNode {
+            return super.visitSqlExecutableStatement(ctx)
+        }
+
+        override fun visitRoutineBody(ctx: org.partiql.parser.antlr.PartiQLParser.RoutineBodyContext) = translate(ctx) {
+            visitSqlRoutineBody(ctx.sqlRoutineBody())
+        }
+
+        override fun visitSqlRoutineBody(ctx: org.partiql.parser.antlr.PartiQLParser.SqlRoutineBodyContext) = translate(ctx) {
+            val stmt = visitSqlProcedureStatement(ctx.sqlProcedureStatement()) as Statement
+            statementRoutineBodyInternal(stmt)
+        }
+
+        override fun visitSqlControlStatement(ctx: org.partiql.parser.antlr.PartiQLParser.SqlControlStatementContext?): AstNode {
+            return super.visitSqlControlStatement(ctx)
+        }
+
         /**
          *
          * DATA MANIPULATION LANGUAGE (DML)
@@ -1835,6 +1911,7 @@ internal class PartiQLParserDefault : PartiQLParser {
             val n = ctx.arg0?.text?.toInt()
             when (ctx.datatype.type) {
                 GeneratedParser.FLOAT -> when (n) {
+                    null -> typeFloat64()
                     32 -> typeFloat32()
                     64 -> typeFloat64()
                     else -> throw error(ctx.datatype, "Invalid FLOAT precision. Expected 32 or 64")
diff --git a/partiql-parser/src/main/resources/built-in-functions/README.md b/partiql-parser/src/main/resources/built-in-functions/README.md
new file mode 100644
index 0000000000..587eae643f
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/README.md
@@ -0,0 +1,157 @@
+# SQL:1999
+
+- CML is the implementation-defined maximum length for <character string type>
+- BML is the implementation-defined maximum length for bit string length
+- MP is the implementation-defined maximum precision for <exact numeric type>
+- P1 is the implementation-defined precision for the value of a <position expression>
+- P2 is the implementation-defined precision for the value of a <length expression>
+- MBP is the implementation-defined maximum binary precision for <approximate numeric type>
+- MILFP is the implementation-defined maximum value for <interval leading field precision>
+- MIFSP is the implementation-defined maximum value for <interval fractional seconds precision>.
+- Let P assume all character string values that are the minimal literal for an exact numeric value of scale 0 (zero) between 1 (one) and MP
+- let S assume all character string values that are the minimal literal for an exact numeric value of scale 0 (zero) between 1 (one) and P
+- let BP assume all character string values that are the minimal literal for an exact numeric value of scale 0 (zero) between 1 (one) and MBP
+- let IP assume all character string values that are the minimal literal for an exact numeric value of scale 0 (zero) between 1 (one) and MILFP
+- let IS assume all character string values that are the minimal literal for an exact numeric value of scale 0 (zero) between 0 (zero) and MIFSP.
+
+## Remaining Grants
+
+```sql
+
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.POSITION1
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.POSITION2
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.POSITION3
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.POSITION4
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.CHAR_LENGTH1
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.CHAR_LENGTH2
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.CHAR_LENGTH3
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.CHAR_LENGTH4
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.CHARACTER_LENGTH1
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.CHARACTER_LENGTH2
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.CHARACTER_LENGTH3
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.CHARACTER_LENGTH4
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.OCTET_LENGTH1
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.OCTET_LENGTH2
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.OCTET_LENGTH3
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.OCTET_LENGTH4
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.BIT_LENGTH1
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.BIT_LENGTH2
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.BIT_LENGTH3
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.BIT_LENGTH4
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSNUMERICP_S
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSDECIMALP_S
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTEGER
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSSMALLINT
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSFLOATBP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSREAL
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSDOUBLEPRECISION
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODNUMERICMP_NUMERICP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODNUMERICMP_DECIMALP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODNUMERICMP_INTEGER
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODNUMERICMP_SMALLINT
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODDECIMALMP_NUMERICP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODDECIMALMP_DECIMALP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODDECIMALMP_INTEGER
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODDECIMALMP_SMALLINT
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODINTEGER_NUMERICP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODINTEGER_DECIMALP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODINTEGER_INTEGER
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODINTEGER_SMALLINT
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODSMALLINT_NUMERICP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODSMALLINT_DECIMALP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODSMALLINT_INTEGER
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.MODSMALLINT_SMALLINT
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALYEARIP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALYEARIP_MONTH
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALMONTHIP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALDAYIP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALDAYIP_HOUR
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALDAYIP_MINUTE
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALDAYIP_SECONDIS
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALHOURIP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALHOURIP_MINUTE
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALHOURIP_SECONDIS
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALMINUTEIP
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALMINUTEIP_SECONDIS
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.ABSINTERVALSECONDIP_IS
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.SUBSTRING1
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.SUBSTRING2
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.SUBSTRING3
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.SUBSTRING4
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.SUBSTRING5
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.SUBSTRING6
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.SUBSTRING7
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.SUBSTRING8
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.UPPER1
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.UPPER2
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.LOWER1
+    TO PUBLIC;
+GRANT EXECUTE ON SPECIFIC FUNCTION INFORMATION_SCHEMA.LOWER2
+    TO PUBLIC;
+```
\ No newline at end of file
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSDECIMALP_S.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSDECIMALP_S.sql
new file mode 100644
index 0000000000..36b27deb24
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSDECIMALP_S.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N DECIMAL )
+    RETURNS DECIMAL
+    SPECIFIC ABSDECIMALP_S
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSDOUBLEPRECISION.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSDOUBLEPRECISION.sql
new file mode 100644
index 0000000000..89954214ab
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSDOUBLEPRECISION.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N DOUBLE PRECISION)
+    RETURNS DOUBLE PRECISION
+    SPECIFIC ABSDOUBLEPRECISION
+    RETURN ABS(N) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSFLOATBP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSFLOATBP.sql
new file mode 100644
index 0000000000..2b7267434b
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSFLOATBP.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N FLOAT )
+    RETURNS FLOAT
+    SPECIFIC ABSFLOATBP
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSINTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSINTEGER.sql
new file mode 100644
index 0000000000..a808e0e6c5
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSINTEGER.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N INTEGER)
+    RETURNS INTEGER
+    SPECIFIC ABSINTEGER
+    RETURN ABS(N) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSNUMERICP_S.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSNUMERICP_S.sql
new file mode 100644
index 0000000000..c36beb3a43
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSNUMERICP_S.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N NUMERIC )
+RETURNS NUMERIC
+SPECIFIC ABSNUMERICP_S
+RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSREAL.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSREAL.sql
new file mode 100644
index 0000000000..0032d05576
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSREAL.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N REAL)
+    RETURNS REAL
+    SPECIFIC ABSREAL
+    RETURN ABS(N) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSSMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSSMALLINT.sql
new file mode 100644
index 0000000000..b4c48f64de
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/ABSSMALLINT.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N SMALLINT)
+    RETURNS SMALLINT
+    SPECIFIC ABSSMALLINT
+    RETURN ABS(N) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/BIT_LENGTH1.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/BIT_LENGTH1.sql
new file mode 100644
index 0000000000..8ea5ce7c4e
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/BIT_LENGTH1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "BIT_LENGTH"(
+    S1 CHARACTER )
+RETURNS NUMERIC
+SPECIFIC BIT_LENGTH1
+RETURN BIT_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/BIT_LENGTH2.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/BIT_LENGTH2.sql
new file mode 100644
index 0000000000..42fb947200
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/BIT_LENGTH2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "BIT_LENGTH"(
+    S1 CHARACTER VARYING)
+RETURNS NUMERIC
+SPECIFIC BIT_LENGTH2
+RETURN BIT_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHARACTER_LENGTH1.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHARACTER_LENGTH1.sql
new file mode 100644
index 0000000000..c54f19a2a8
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHARACTER_LENGTH1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHARACTER_LENGTH"(
+    S1 CHARACTER )
+RETURNS NUMERIC
+SPECIFIC CHARACTER_LENGTH1
+RETURN CHARACTER_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHARACTER_LENGTH2.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHARACTER_LENGTH2.sql
new file mode 100644
index 0000000000..b11141c7be
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHARACTER_LENGTH2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHARACTER_LENGTH"(
+    S1 CHARACTER VARYING )
+RETURNS NUMERIC
+SPECIFIC CHARACTER_LENGTH2
+RETURN CHARACTER_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHAR_LENGTH1.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHAR_LENGTH1.sql
new file mode 100644
index 0000000000..c4743b24a9
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHAR_LENGTH1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHAR_LENGTH"(
+    S1 CHARACTER )
+RETURNS NUMERIC
+SPECIFIC CHAR_LENGTH1
+RETURN CHAR_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHAR_LENGTH2.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHAR_LENGTH2.sql
new file mode 100644
index 0000000000..28319ddb5a
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/CHAR_LENGTH2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHAR_LENGTH"(
+    S1 CHARACTER VARYING )
+RETURNS NUMERIC
+SPECIFIC CHAR_LENGTH2
+RETURN CHAR_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/LOWER1.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/LOWER1.sql
new file mode 100644
index 0000000000..c4fe33b944
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/LOWER1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "LOWER"(
+    S CHARACTER )
+RETURNS CHARACTER
+SPECIFIC LOWER1
+RETURN LOWER ( S ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/LOWER2.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/LOWER2.sql
new file mode 100644
index 0000000000..fa12e8770d
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/LOWER2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "LOWER"(
+    S CHARACTER VARYING)
+RETURNS CHARACTER VARYING
+SPECIFIC LOWER2
+RETURN LOWER ( S ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_DECIMALP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_DECIMALP.sql
new file mode 100644
index 0000000000..3b348c73b1
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_DECIMALP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 DECIMAL,
+N2 DECIMAL)
+RETURNS DECIMAL
+SPECIFIC MODDECIMALMP_DECIMALP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_INTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_INTEGER.sql
new file mode 100644
index 0000000000..6249098267
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_INTEGER.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 DECIMAL,
+N2 INTEGER )
+RETURNS INTEGER
+SPECIFIC MODDECIMALMP_INTEGER
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_NUMERICP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_NUMERICP.sql
new file mode 100644
index 0000000000..a581ae1fa5
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_NUMERICP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 DECIMAL,
+N2 NUMERIC )
+RETURNS NUMERIC
+SPECIFIC MODDECIMALMP_NUMERICP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_SMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_SMALLINT.sql
new file mode 100644
index 0000000000..acb22fdc2c
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODDECIMALMP_SMALLINT.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 DECIMAL,
+N2 SMALLINT )
+RETURNS SMALLINT
+SPECIFIC MODDECIMALMP_SMALLINT
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_DECIMALP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_DECIMALP.sql
new file mode 100644
index 0000000000..9090888287
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_DECIMALP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 INTEGER,
+    N2 DECIMAL)
+RETURNS DECIMAL
+SPECIFIC MODINTEGER_DECIMALP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_INTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_INTEGER.sql
new file mode 100644
index 0000000000..37f9d32959
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_INTEGER.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 INTEGER,
+    N2 INTEGER)
+    RETURNS INTEGER
+    SPECIFIC MODINTEGER_INTEGER
+    RETURN MOD(N1, N2) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_NUMERICP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_NUMERICP.sql
new file mode 100644
index 0000000000..c9f5e42293
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_NUMERICP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 INTEGER,
+    N2 NUMERIC )
+RETURNS NUMERIC
+SPECIFIC MODINTEGER_NUMERICP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_SMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_SMALLINT.sql
new file mode 100644
index 0000000000..6e12d3f59e
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODINTEGER_SMALLINT.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 INTEGER,
+    N2 SMALLINT)
+    RETURNS SMALLINT
+    SPECIFIC MODINTEGER_SMALLINT
+    RETURN MOD(N1, N2) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_DECIMALP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_DECIMALP.sql
new file mode 100644
index 0000000000..80c55eefdd
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_DECIMALP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 NUMERIC,
+N2 DECIMAL )
+RETURNS DECIMAL
+SPECIFIC MODNUMERICMP_DECIMALP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_INTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_INTEGER.sql
new file mode 100644
index 0000000000..55cc2762a0
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_INTEGER.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 NUMERIC,
+N2 INTEGER )
+RETURNS INTEGER
+SPECIFIC MODNUMERICMP_INTEGER
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_NUMERICP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_NUMERICP.sql
new file mode 100644
index 0000000000..c2bb72099c
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_NUMERICP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 NUMERIC,
+N2 NUMERIC)
+RETURNS NUMERIC
+SPECIFIC MODNUMERICMP_NUMERICP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_SMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_SMALLINT.sql
new file mode 100644
index 0000000000..f4390f8026
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODNUMERICMP_SMALLINT.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 NUMERIC,
+N2 SMALLINT )
+RETURNS SMALLINT
+SPECIFIC MODNUMERICMP_SMALLINT
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_DECIMALP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_DECIMALP.sql
new file mode 100644
index 0000000000..d284f3273e
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_DECIMALP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 SMALLINT,
+    N2 DECIMAL)
+RETURNS DECIMAL
+SPECIFIC MODSMALLINT_DECIMALP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_INTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_INTEGER.sql
new file mode 100644
index 0000000000..05a93a46ac
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_INTEGER.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 SMALLINT,
+    N2 INTEGER)
+    RETURNS INTEGER
+    SPECIFIC MODSMALLINT_INTEGER
+    RETURN MOD(N1, N2) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_NUMERICP.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_NUMERICP.sql
new file mode 100644
index 0000000000..53707170f0
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_NUMERICP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 SMALLINT,
+    N2 NUMERIC )
+RETURNS NUMERIC
+SPECIFIC MODSMALLINT_NUMERICP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_SMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_SMALLINT.sql
new file mode 100644
index 0000000000..f7b2e036dc
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/MODSMALLINT_SMALLINT.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 SMALLINT,
+    N2 SMALLINT)
+    RETURNS SMALLINT
+    SPECIFIC MODSMALLINT_SMALLINT
+    RETURN MOD(N1, N2) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/OCTET_LENGTH1.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/OCTET_LENGTH1.sql
new file mode 100644
index 0000000000..e53cf8970a
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/OCTET_LENGTH1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "OCTET_LENGTH"(
+    S1 CHARACTER)
+RETURNS NUMERIC
+SPECIFIC OCTET_LENGTH1
+RETURN OCTET_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/OCTET_LENGTH2.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/OCTET_LENGTH2.sql
new file mode 100644
index 0000000000..0033d637a5
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/OCTET_LENGTH2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "OCTET_LENGTH"(
+    S1 CHARACTER VARYING)
+RETURNS NUMERIC
+SPECIFIC OCTET_LENGTH2
+RETURN OCTET_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION1.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION1.sql
new file mode 100644
index 0000000000..87982642e7
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION1.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "POSITION" (
+    S1 CHARACTER,
+    S2 CHARACTER )
+    RETURNS NUMERIC
+    SPECIFIC POSITION1
+    RETURN POSITION ( S1 IN S2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION2.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION2.sql
new file mode 100644
index 0000000000..9adab3d7bd
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION2.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "POSITION" (
+    S1 CHARACTER VARYING,
+    S2 CHARACTER )
+    RETURNS NUMERIC
+    SPECIFIC POSITION2
+    RETURN POSITION ( S1 IN S2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION3.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION3.sql
new file mode 100644
index 0000000000..feb16f6fdf
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION3.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "POSITION"(
+    S1 CHARACTER,
+    S2 CHARACTER VARYING )
+    RETURNS NUMERIC
+    SPECIFIC POSITION3
+    RETURN POSITION ( S1 IN S2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION4.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION4.sql
new file mode 100644
index 0000000000..106759e3b8
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/POSITION4.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "POSITION"(
+    S1 CHARACTER VARYING,
+    S2 CHARACTER VARYING)
+    RETURNS NUMERIC
+    SPECIFIC POSITION4
+    RETURN POSITION ( S1 IN S2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING1.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING1.sql
new file mode 100644
index 0000000000..7a120d7214
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING1.sql
@@ -0,0 +1,7 @@
+CREATE FUNCTION "SUBSTRING"(
+    S CHARACTER,
+START NUMERIC,
+LENGTH NUMERIC )
+RETURNS CHARACTER VARYING
+SPECIFIC SUBSTRING1
+RETURN SUBSTRING ( S FROM START FOR LENGTH ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING2.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING2.sql
new file mode 100644
index 0000000000..83848301ac
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING2.sql
@@ -0,0 +1,7 @@
+CREATE FUNCTION "SUBSTRING"(
+    S CHARACTER VARYING,
+START NUMERIC,
+LENGTH NUMERIC )
+RETURNS CHARACTER VARYING
+SPECIFIC SUBSTRING2
+RETURN SUBSTRING ( S FROM START FOR LENGTH ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING3.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING3.sql
new file mode 100644
index 0000000000..1af98c555f
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING3.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "SUBSTRING"(
+    S CHARACTER,
+START NUMERIC )
+RETURNS CHARACTER VARYING
+SPECIFIC SUBSTRING3
+RETURN SUBSTRING ( S FROM START ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING4.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING4.sql
new file mode 100644
index 0000000000..5cf5a406d4
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/SUBSTRING4.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "SUBSTRING"(
+    S CHARACTER VARYING,
+START NUMERIC )
+RETURNS CHARACTER VARYING
+SPECIFIC SUBSTRING4
+RETURN SUBSTRING ( S FROM START ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/UPPER1.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/UPPER1.sql
new file mode 100644
index 0000000000..3f040a430c
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/UPPER1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "UPPER"(
+    S CHARACTER )
+RETURNS CHARACTER
+SPECIFIC UPPER1
+RETURN UPPER ( S ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/partiql-converted/UPPER2.sql b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/UPPER2.sql
new file mode 100644
index 0000000000..9d3e03d03d
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/partiql-converted/UPPER2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "UPPER"(
+    S CHARACTER VARYING )
+RETURNS CHARACTER VARYING
+SPECIFIC UPPER2
+RETURN UPPER ( S ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/ABSDECIMALP_S.sql b/partiql-parser/src/main/resources/built-in-functions/sql/ABSDECIMALP_S.sql
new file mode 100644
index 0000000000..6af12e88b5
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/ABSDECIMALP_S.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N DECIMAL ( P, S ) )
+    RETURNS DECIMAL ( P, S )
+    SPECIFIC ABSDECIMALP_S
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/ABSDOUBLEPRECISION.sql b/partiql-parser/src/main/resources/built-in-functions/sql/ABSDOUBLEPRECISION.sql
new file mode 100644
index 0000000000..89954214ab
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/ABSDOUBLEPRECISION.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N DOUBLE PRECISION)
+    RETURNS DOUBLE PRECISION
+    SPECIFIC ABSDOUBLEPRECISION
+    RETURN ABS(N) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/ABSFLOATBP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/ABSFLOATBP.sql
new file mode 100644
index 0000000000..2b7267434b
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/ABSFLOATBP.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N FLOAT )
+    RETURNS FLOAT
+    SPECIFIC ABSFLOATBP
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/ABSINTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/sql/ABSINTEGER.sql
new file mode 100644
index 0000000000..a808e0e6c5
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/ABSINTEGER.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N INTEGER)
+    RETURNS INTEGER
+    SPECIFIC ABSINTEGER
+    RETURN ABS(N) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/ABSNUMERICP_S.sql b/partiql-parser/src/main/resources/built-in-functions/sql/ABSNUMERICP_S.sql
new file mode 100644
index 0000000000..0a494e56f0
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/ABSNUMERICP_S.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N NUMERIC ( P, S ) )
+RETURNS NUMERIC ( P, S )
+SPECIFIC ABSNUMERICP_S
+RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/ABSREAL.sql b/partiql-parser/src/main/resources/built-in-functions/sql/ABSREAL.sql
new file mode 100644
index 0000000000..0032d05576
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/ABSREAL.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N REAL)
+    RETURNS REAL
+    SPECIFIC ABSREAL
+    RETURN ABS(N) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/ABSSMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/sql/ABSSMALLINT.sql
new file mode 100644
index 0000000000..b4c48f64de
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/ABSSMALLINT.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "ABS"(
+    N SMALLINT)
+    RETURNS SMALLINT
+    SPECIFIC ABSSMALLINT
+    RETURN ABS(N) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/BIT_LENGTH1.sql b/partiql-parser/src/main/resources/built-in-functions/sql/BIT_LENGTH1.sql
new file mode 100644
index 0000000000..0e918587ff
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/BIT_LENGTH1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "BIT_LENGTH"(
+    S1 CHARACTER ( CML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC BIT_LENGTH1
+RETURN BIT_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/BIT_LENGTH2.sql b/partiql-parser/src/main/resources/built-in-functions/sql/BIT_LENGTH2.sql
new file mode 100644
index 0000000000..9d79b74beb
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/BIT_LENGTH2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "BIT_LENGTH"(
+    S1 CHARACTER VARYING ( CML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC BIT_LENGTH2
+RETURN BIT_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/CHARACTER_LENGTH1.sql b/partiql-parser/src/main/resources/built-in-functions/sql/CHARACTER_LENGTH1.sql
new file mode 100644
index 0000000000..cc6c4a218d
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/CHARACTER_LENGTH1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHARACTER_LENGTH"(
+    S1 CHARACTER ( CML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC CHARACTER_LENGTH1
+RETURN CHARACTER_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/CHARACTER_LENGTH2.sql b/partiql-parser/src/main/resources/built-in-functions/sql/CHARACTER_LENGTH2.sql
new file mode 100644
index 0000000000..bce69b0ba2
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/CHARACTER_LENGTH2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHARACTER_LENGTH"(
+    S1 CHARACTER VARYING ( CML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC CHARACTER_LENGTH2
+RETURN CHARACTER_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/CHAR_LENGTH1.sql b/partiql-parser/src/main/resources/built-in-functions/sql/CHAR_LENGTH1.sql
new file mode 100644
index 0000000000..011f9f1f73
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/CHAR_LENGTH1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHAR_LENGTH"(
+    S1 CHARACTER ( CML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC CHAR_LENGTH1
+RETURN CHAR_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/CHAR_LENGTH2.sql b/partiql-parser/src/main/resources/built-in-functions/sql/CHAR_LENGTH2.sql
new file mode 100644
index 0000000000..12d67bd67c
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/CHAR_LENGTH2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHAR_LENGTH"(
+    S1 CHARACTER VARYING ( CML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC CHAR_LENGTH2
+RETURN CHAR_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/LOWER1.sql b/partiql-parser/src/main/resources/built-in-functions/sql/LOWER1.sql
new file mode 100644
index 0000000000..fbe4f22729
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/LOWER1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "LOWER"(
+    S CHARACTER ( CML ) )
+RETURNS CHARACTER ( CML )
+SPECIFIC LOWER1
+RETURN LOWER ( S ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/LOWER2.sql b/partiql-parser/src/main/resources/built-in-functions/sql/LOWER2.sql
new file mode 100644
index 0000000000..855fd2e7a9
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/LOWER2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "LOWER"(
+    S CHARACTER VARYING ( CML ) )
+RETURNS CHARACTER VARYING ( CML )
+SPECIFIC LOWER2
+RETURN LOWER ( S ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_DECIMALP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_DECIMALP.sql
new file mode 100644
index 0000000000..ffcdc150e2
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_DECIMALP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 DECIMAL ( MP, 0 ),
+N2 DECIMAL ( P, 0 ) )
+RETURNS DECIMAL ( P, 0 )
+SPECIFIC MODDECIMALMP_DECIMALP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_INTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_INTEGER.sql
new file mode 100644
index 0000000000..9aece334d3
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_INTEGER.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 DECIMAL ( MP, 0 ),
+N2 INTEGER )
+RETURNS INTEGER
+SPECIFIC MODDECIMALMP_INTEGER
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_NUMERICP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_NUMERICP.sql
new file mode 100644
index 0000000000..944b6e3572
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_NUMERICP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 DECIMAL ( MP, 0 ),
+N2 NUMERIC ( P, 0 ) )
+RETURNS NUMERIC ( P, 0 )
+SPECIFIC MODDECIMALMP_NUMERICP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_SMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_SMALLINT.sql
new file mode 100644
index 0000000000..bf3891371f
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODDECIMALMP_SMALLINT.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 DECIMAL ( MP, 0 ),
+N2 SMALLINT )
+RETURNS SMALLINT
+SPECIFIC MODDECIMALMP_SMALLINT
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_DECIMALP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_DECIMALP.sql
new file mode 100644
index 0000000000..5b45fb1ba3
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_DECIMALP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 INTEGER,
+    N2 DECIMAL ( P, 0 ) )
+RETURNS DECIMAL ( P, 0 )
+SPECIFIC MODINTEGER_DECIMALP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_INTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_INTEGER.sql
new file mode 100644
index 0000000000..37f9d32959
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_INTEGER.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 INTEGER,
+    N2 INTEGER)
+    RETURNS INTEGER
+    SPECIFIC MODINTEGER_INTEGER
+    RETURN MOD(N1, N2) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_NUMERICP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_NUMERICP.sql
new file mode 100644
index 0000000000..2396f41bfe
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_NUMERICP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 INTEGER,
+    N2 NUMERIC ( P, 0 ) )
+RETURNS NUMERIC ( P, 0 )
+SPECIFIC MODINTEGER_NUMERICP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_SMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_SMALLINT.sql
new file mode 100644
index 0000000000..6e12d3f59e
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODINTEGER_SMALLINT.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 INTEGER,
+    N2 SMALLINT)
+    RETURNS SMALLINT
+    SPECIFIC MODINTEGER_SMALLINT
+    RETURN MOD(N1, N2) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_DECIMALP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_DECIMALP.sql
new file mode 100644
index 0000000000..50d9f60c13
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_DECIMALP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 NUMERIC ( MP, 0 ),
+N2 DECIMAL ( P, 0 ) )
+RETURNS DECIMAL ( P, 0 )
+SPECIFIC MODNUMERICMP_DECIMALP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_INTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_INTEGER.sql
new file mode 100644
index 0000000000..e1b9329f1e
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_INTEGER.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 NUMERIC ( MP, 0 ),
+N2 INTEGER )
+RETURNS INTEGER
+SPECIFIC MODNUMERICMP_INTEGER
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_NUMERICP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_NUMERICP.sql
new file mode 100644
index 0000000000..de4769f00b
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_NUMERICP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 NUMERIC ( MP, 0 ),
+N2 NUMERIC ( P, 0 ) )
+RETURNS NUMERIC ( P, 0 )
+SPECIFIC MODNUMERICMP_NUMERICP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_SMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_SMALLINT.sql
new file mode 100644
index 0000000000..c0070f9391
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODNUMERICMP_SMALLINT.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 NUMERIC ( MP, 0 ),
+N2 SMALLINT )
+RETURNS SMALLINT
+SPECIFIC MODNUMERICMP_SMALLINT
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_DECIMALP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_DECIMALP.sql
new file mode 100644
index 0000000000..dec3a51216
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_DECIMALP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 SMALLINT,
+    N2 DECIMAL ( P, 0 ) )
+RETURNS DECIMAL ( P, 0 )
+SPECIFIC MODSMALLINT_DECIMALP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_INTEGER.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_INTEGER.sql
new file mode 100644
index 0000000000..05a93a46ac
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_INTEGER.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 SMALLINT,
+    N2 INTEGER)
+    RETURNS INTEGER
+    SPECIFIC MODSMALLINT_INTEGER
+    RETURN MOD(N1, N2) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_NUMERICP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_NUMERICP.sql
new file mode 100644
index 0000000000..2c765596a0
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_NUMERICP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 SMALLINT,
+    N2 NUMERIC ( P, 0 ) )
+RETURNS NUMERIC ( P, 0 )
+SPECIFIC MODSMALLINT_NUMERICP
+RETURN MOD ( N1, N2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_SMALLINT.sql b/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_SMALLINT.sql
new file mode 100644
index 0000000000..f7b2e036dc
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/MODSMALLINT_SMALLINT.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "MOD"(
+    N1 SMALLINT,
+    N2 SMALLINT)
+    RETURNS SMALLINT
+    SPECIFIC MODSMALLINT_SMALLINT
+    RETURN MOD(N1, N2) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/OCTET_LENGTH1.sql b/partiql-parser/src/main/resources/built-in-functions/sql/OCTET_LENGTH1.sql
new file mode 100644
index 0000000000..22e215cde5
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/OCTET_LENGTH1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "OCTET_LENGTH"(
+    S1 CHARACTER ( CML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC OCTET_LENGTH1
+RETURN OCTET_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/OCTET_LENGTH2.sql b/partiql-parser/src/main/resources/built-in-functions/sql/OCTET_LENGTH2.sql
new file mode 100644
index 0000000000..dfb29335ef
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/OCTET_LENGTH2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "OCTET_LENGTH"(
+    S1 CHARACTER VARYING ( CML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC OCTET_LENGTH2
+RETURN OCTET_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/POSITION1.sql b/partiql-parser/src/main/resources/built-in-functions/sql/POSITION1.sql
new file mode 100644
index 0000000000..735739c7d8
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/POSITION1.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "POSITION" (
+    S1 CHARACTER ( CML ),
+    S2 CHARACTER ( CML ) )
+    RETURNS NUMERIC ( P1, 0 )
+    SPECIFIC POSITION1
+    RETURN POSITION ( S1 IN S2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/POSITION2.sql b/partiql-parser/src/main/resources/built-in-functions/sql/POSITION2.sql
new file mode 100644
index 0000000000..9af6cbbea9
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/POSITION2.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "POSITION" (
+    S1 CHARACTER VARYING ( CML ),
+    S2 CHARACTER ( CML ) )
+    RETURNS NUMERIC ( P1, 0 )
+    SPECIFIC POSITION2
+    RETURN POSITION ( S1 IN S2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/POSITION3.sql b/partiql-parser/src/main/resources/built-in-functions/sql/POSITION3.sql
new file mode 100644
index 0000000000..8398e6d1c9
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/POSITION3.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "POSITION"(
+    S1 CHARACTER ( CML ),
+    S2 CHARACTER VARYING ( CML ) )
+    RETURNS NUMERIC ( P1, 0 )
+    SPECIFIC POSITION3
+    RETURN POSITION ( S1 IN S2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/POSITION4.sql b/partiql-parser/src/main/resources/built-in-functions/sql/POSITION4.sql
new file mode 100644
index 0000000000..38443093e8
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/POSITION4.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "POSITION"(
+    S1 CHARACTER VARYING ( CML ),
+    S2 CHARACTER VARYING ( CML ) )
+    RETURNS NUMERIC ( P1, 0 )
+    SPECIFIC POSITION4
+    RETURN POSITION ( S1 IN S2 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING1.sql b/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING1.sql
new file mode 100644
index 0000000000..02c276c115
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING1.sql
@@ -0,0 +1,7 @@
+CREATE FUNCTION "SUBSTRING"(
+    S CHARACTER ( CML ),
+START NUMERIC ( MP, 0 ),
+LENGTH NUMERIC ( MP, 0 ) )
+RETURNS CHARACTER VARYING ( CML )
+SPECIFIC SUBSTRING1
+RETURN SUBSTRING ( S FROM START FOR LENGTH ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING2.sql b/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING2.sql
new file mode 100644
index 0000000000..48b8b14640
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING2.sql
@@ -0,0 +1,7 @@
+CREATE FUNCTION "SUBSTRING"(
+    S CHARACTER VARYING ( CML ),
+START NUMERIC ( MP, 0 ),
+LENGTH NUMERIC ( MP, 0 ) )
+RETURNS CHARACTER VARYING ( CML )
+SPECIFIC SUBSTRING2
+RETURN SUBSTRING ( S FROM START FOR LENGTH ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING3.sql b/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING3.sql
new file mode 100644
index 0000000000..f420996c3c
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING3.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "SUBSTRING"(
+    S CHARACTER ( CML ),
+START NUMERIC ( MP, 0 ) )
+RETURNS CHARACTER VARYING ( CML )
+SPECIFIC SUBSTRING3
+RETURN SUBSTRING ( S FROM START ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING4.sql b/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING4.sql
new file mode 100644
index 0000000000..c473d528d5
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/SUBSTRING4.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "SUBSTRING"(
+    S CHARACTER VARYING ( CML ),
+START NUMERIC ( MP, 0 ) )
+RETURNS CHARACTER VARYING ( CML )
+SPECIFIC SUBSTRING4
+RETURN SUBSTRING ( S FROM START ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/UPPER1.sql b/partiql-parser/src/main/resources/built-in-functions/sql/UPPER1.sql
new file mode 100644
index 0000000000..a52744d405
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/UPPER1.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "UPPER"(
+    S CHARACTER ( CML ) )
+RETURNS CHARACTER ( CML )
+SPECIFIC UPPER1
+RETURN UPPER ( S ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/UPPER2.sql b/partiql-parser/src/main/resources/built-in-functions/sql/UPPER2.sql
new file mode 100644
index 0000000000..650ab45afe
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/UPPER2.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "UPPER"(
+    S CHARACTER VARYING ( CML ) )
+RETURNS CHARACTER VARYING ( CML )
+SPECIFIC UPPER2
+RETURN UPPER ( S ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP.sql
new file mode 100644
index 0000000000..a59a543de5
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP.sql
@@ -0,0 +1,7 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( DAY ( IP )))
+    RETURNS INTERVAL
+    (DAY ( IP))
+    SPECIFIC ABSINTERVALDAYIP
+    RETURN ABS ( N ) ;
+
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_HOUR.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_HOUR.sql
new file mode 100644
index 0000000000..2a19b2456a
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_HOUR.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( DAY ( IP ) TO HOUR))
+    RETURNS INTERVAL
+    (DAY ( IP) TO HOUR)
+    SPECIFIC ABSINTERVALDAYIP_HOUR
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_MINUTE.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_MINUTE.sql
new file mode 100644
index 0000000000..3afc3d84fd
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_MINUTE.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( DAY ( IP ) TO MINUTE))
+    RETURNS INTERVAL
+    (DAY ( IP) TO MINUTE)
+    SPECIFIC ABSINTERVALDAYIP_MINUTE
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_SECONDIS.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_SECONDIS.sql
new file mode 100644
index 0000000000..3ab96359a7
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALDAYIP_SECONDIS.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( DAY ( IP ) TO SECOND ( IS )))
+    RETURNS INTERVAL
+    (DAY ( IP) TO SECOND (IS))
+    SPECIFIC ABSINTERVALDAYIP_SECONDIS
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP.sql
new file mode 100644
index 0000000000..9d6417173f
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP.sql
@@ -0,0 +1,7 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( HOUR ( IP )))
+    RETURNS INTERVAL
+    (HOUR ( IP))
+    SPECIFIC ABSINTERVALHOURIP
+    RETURN ABS ( N ) ;
+
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP_MINUTE.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP_MINUTE.sql
new file mode 100644
index 0000000000..8f83daaea8
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP_MINUTE.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( HOUR ( IP ) TO MINUTE))
+    RETURNS INTERVAL
+    (HOUR ( IP) TO MINUTE)
+    SPECIFIC ABSINTERVALHOURIP_MINUTE
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP_SECONDIS.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP_SECONDIS.sql
new file mode 100644
index 0000000000..90a9521242
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALHOURIP_SECONDIS.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( HOUR ( IP ) TO SECOND ( IS )))
+    RETURNS INTERVAL
+    (HOUR ( IP) TO SECOND (IS))
+    SPECIFIC ABSINTERVALHOURIP_SECONDIS
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMINUTEIP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMINUTEIP.sql
new file mode 100644
index 0000000000..a5fa613406
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMINUTEIP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( MINUTE ( IP )))
+    RETURNS INTERVAL
+    (MINUTE ( IP))
+    SPECIFIC ABSINTERVALMINUTEIP
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMINUTEIP_SECONDIS.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMINUTEIP_SECONDIS.sql
new file mode 100644
index 0000000000..28fcf7a443
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMINUTEIP_SECONDIS.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( MINUTE ( IP ) TO SECOND ( IS )))
+    RETURNS INTERVAL
+    (MINUTE ( IP) TO SECOND (IS))
+    SPECIFIC ABSINTERVALMINUTEIP_SECONDIS
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMONTHIP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMONTHIP.sql
new file mode 100644
index 0000000000..6be8135de1
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALMONTHIP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( MONTH ( IP )))
+    RETURNS INTERVAL
+    (MONTH ( IP))
+    SPECIFIC ABSINTERVALMONTHIP
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALSECONDIP_IS.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALSECONDIP_IS.sql
new file mode 100644
index 0000000000..6d76f549f1
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALSECONDIP_IS.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( SECOND ( IP , IS )))
+    RETURNS INTERVAL
+    (SECOND ( IP , IS))
+    SPECIFIC ABSINTERVALSECONDIP_IS
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALYEARIP.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALYEARIP.sql
new file mode 100644
index 0000000000..e57c08652e
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALYEARIP.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( YEAR ( IP )))
+    RETURNS INTERVAL
+    (YEAR ( IP))
+    SPECIFIC ABSINTERVALYEARIP
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALYEARIP_MONTH.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALYEARIP_MONTH.sql
new file mode 100644
index 0000000000..ff57b8b7ff
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/ABSINTERVALYEARIP_MONTH.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "ABS"(
+    N INTERVAL ( YEAR ( IP ) TO MONTH))
+    RETURNS INTERVAL
+    (YEAR ( IP) TO MONTH)
+    SPECIFIC ABSINTERVALYEARIP_MONTH
+    RETURN ABS ( N ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/BIT_LENGTH3.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/BIT_LENGTH3.sql
new file mode 100644
index 0000000000..afe359d7ed
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/BIT_LENGTH3.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "BIT_LENGTH"(
+    S1 BIT ( BML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC BIT_LENGTH3
+RETURN BIT_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/BIT_LENGTH4.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/BIT_LENGTH4.sql
new file mode 100644
index 0000000000..de94d136ab
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/BIT_LENGTH4.sql
@@ -0,0 +1,6 @@
+
+CREATE FUNCTION "BIT_LENGTH"(
+    S1 BIT VARYING ( BML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC BIT_LENGTH4
+RETURN BIT_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHARACTER_LENGTH3.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHARACTER_LENGTH3.sql
new file mode 100644
index 0000000000..a922f766af
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHARACTER_LENGTH3.sql
@@ -0,0 +1,6 @@
+
+CREATE FUNCTION "CHARACTER_LENGTH"(
+    S1 BIT ( BML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC CHARACTER_LENGTH3
+RETURN CHARACTER_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHARACTER_LENGTH4.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHARACTER_LENGTH4.sql
new file mode 100644
index 0000000000..06ba26ab0b
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHARACTER_LENGTH4.sql
@@ -0,0 +1,6 @@
+
+CREATE FUNCTION "CHARACTER_LENGTH"(
+    S1 BIT VARYING ( BML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC CHARACTER_LENGTH4
+RETURN CHARACTER_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHAR_LENGTH3.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHAR_LENGTH3.sql
new file mode 100644
index 0000000000..2b64ffe13e
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHAR_LENGTH3.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "CHAR_LENGTH"(
+    S1 BIT ( BML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC CHAR_LENGTH3
+RETURN CHAR_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHAR_LENGTH4.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHAR_LENGTH4.sql
new file mode 100644
index 0000000000..0557bfa83a
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/CHAR_LENGTH4.sql
@@ -0,0 +1,6 @@
+
+CREATE FUNCTION "CHAR_LENGTH"(
+    S1 BIT VARYING ( BML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC CHAR_LENGTH4
+RETURN CHAR_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/OCTET_LENGTH3.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/OCTET_LENGTH3.sql
new file mode 100644
index 0000000000..9722e872fe
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/OCTET_LENGTH3.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "OCTET_LENGTH"(
+    S1 BIT ( BML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC OCTET_LENGTH3
+RETURN OCTET_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/OCTET_LENGTH4.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/OCTET_LENGTH4.sql
new file mode 100644
index 0000000000..f6bf7e38b4
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/OCTET_LENGTH4.sql
@@ -0,0 +1,5 @@
+CREATE FUNCTION "OCTET_LENGTH"(
+    S1 BIT VARYING ( BML ) )
+RETURNS NUMERIC ( P2, 0 )
+SPECIFIC OCTET_LENGTH4
+RETURN OCTET_LENGTH ( S1 ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING5.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING5.sql
new file mode 100644
index 0000000000..c8d2f00cdd
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING5.sql
@@ -0,0 +1,7 @@
+CREATE FUNCTION "SUBSTRING"(
+    S BIT ( BML ),
+START NUMERIC ( MP, 0 ),
+LENGTH NUMERIC ( MP, 0 ) )
+RETURNS BIT VARYING ( BML )
+SPECIFIC SUBSTRING5
+RETURN SUBSTRING ( S FROM START FOR LENGTH ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING6.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING6.sql
new file mode 100644
index 0000000000..e07f127660
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING6.sql
@@ -0,0 +1,7 @@
+CREATE FUNCTION "SUBSTRING"(
+    S BIT VARYING ( BML ),
+START NUMERIC ( MP, 0 ),
+LENGTH NUMERIC ( MP, 0 ) )
+RETURNS BIT VARYING ( BML )
+SPECIFIC SUBSTRING6
+RETURN SUBSTRING ( S FROM START FOR LENGTH ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING7.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING7.sql
new file mode 100644
index 0000000000..82b2407663
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING7.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "SUBSTRING"(
+    S BIT ( BML ),
+START NUMERIC ( MP, 0 ) )
+RETURNS BIT VARYING ( BML )
+SPECIFIC SUBSTRING7
+RETURN SUBSTRING ( S FROM START ) ;
diff --git a/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING8.sql b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING8.sql
new file mode 100644
index 0000000000..210b1417e4
--- /dev/null
+++ b/partiql-parser/src/main/resources/built-in-functions/sql/parse-failures/SUBSTRING8.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION "SUBSTRING"(
+    S BIT VARYING ( BML ),
+START NUMERIC ( MP, 0 ) )
+RETURNS BIT VARYING ( BML )
+SPECIFIC SUBSTRING8
+RETURN SUBSTRING ( S FROM START ) ;
diff --git a/partiql-parser/src/test/kotlin/org/partiql/parser/impl/PartiQLParserDefaultTests.kt b/partiql-parser/src/test/kotlin/org/partiql/parser/impl/PartiQLParserDefaultTests.kt
new file mode 100644
index 0000000000..8f167ddb09
--- /dev/null
+++ b/partiql-parser/src/test/kotlin/org/partiql/parser/impl/PartiQLParserDefaultTests.kt
@@ -0,0 +1,237 @@
+package org.partiql.parser.impl
+
+import org.junit.jupiter.api.assertDoesNotThrow
+import org.junit.jupiter.api.assertThrows
+import org.junit.jupiter.api.extension.ExtensionContext
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.Arguments
+import org.junit.jupiter.params.provider.ArgumentsProvider
+import org.junit.jupiter.params.provider.ArgumentsSource
+import org.partiql.ast.Ast
+import org.partiql.ast.AstNode
+import org.partiql.ast.Identifier
+import org.partiql.parser.PartiQLParserException
+import org.partiql.value.PartiQLValueExperimental
+import org.partiql.value.decimalValue
+import java.io.File
+import java.util.stream.Stream
+
+class PartiQLParserDefaultTests {
+
+    private val parser = PartiQLParserDefault()
+
+    data class ParserTestCase(
+        val input: String,
+        val expected: AstNode
+    )
+
+    // TODO: Add expected exception information
+    data class ParserFailingTestCase(
+        val input: String,
+    )
+
+    @ParameterizedTest
+    @ArgumentsSource(HandwrittenFunctionTestCases::class)
+    fun test(tc: ParserTestCase) {
+        val result = assertDoesNotThrow { parser.parse(tc.input) }
+        // TODO: Once we can assert equality:
+        //  assertEquals(tc.expected, result.root)
+    }
+
+    @ParameterizedTest
+    @ArgumentsSource(CreateBuiltInFunctionTestCases::class)
+    fun testPartiQLBuiltIns(tc: ParserTestCase) {
+        val result = assertDoesNotThrow { parser.parse(tc.input) }
+        // TODO: Once we can assert equality:
+        //  assertEquals(tc.expected, result.root)
+    }
+
+    @ParameterizedTest
+    @ArgumentsSource(FailingTestCases::class)
+    fun testMalformedQueries(tc: ParserFailingTestCase) {
+        val exception = assertThrows<PartiQLParserException> { parser.parse(tc.input) }
+        // TODO: Assert some locations?
+    }
+
+    class HandwrittenFunctionTestCases : ArgumentsProviderBase() {
+        @OptIn(PartiQLValueExperimental::class)
+        override fun getParameters(): List<ParserTestCase> = listOf(
+            ParserTestCase(
+                input = """
+                    CREATE FUNCTION PI () RETURNS DECIMAL RETURN 3.14;
+                """.trimIndent(),
+                expected = Ast.statementDDLCreateFunction(
+                    specification = Ast.statementDDLCreateFunctionSpecification(
+                        name = Ast.identifierQualified(
+                            root = Ast.identifierSymbol("PI", caseSensitivity = Identifier.CaseSensitivity.INSENSITIVE),
+                            steps = emptyList()
+                        ),
+                        parameters = emptyList(),
+                        returns = Ast.statementDDLCreateFunctionReturns(
+                            type = Ast.typeDecimal(null, null)
+                        ),
+                        characteristics = emptyList()
+                    ),
+                    body = Ast.statementRoutineBodyInternal(
+                        procedureStatement = Ast.statementReturn(
+                            value = Ast.exprLit(decimalValue(3.14.toBigDecimal()))
+                        )
+                    )
+                )
+            ),
+            ParserTestCase(
+                input = """
+                    CREATE FUNCTION "MOD" (
+                    N1 DECIMAL ( 10, 0 ),
+                    N2 DECIMAL ( 10, 0 ) )
+                    RETURNS DECIMAL ( 10, 0 )
+                    SPECIFIC MODDECIMALMP_DECIMALP
+                    RETURN MOD ( N1, N2 ) ;
+                """.trimIndent(),
+                expected = Ast.typeNullType() // TODO
+            ),
+            ParserTestCase(
+                input = """
+                    CREATE FUNCTION "MOD" (
+                    N2 DECIMAL ( 10, 0 ) )
+                    RETURNS DECIMAL ( 10, 0 )
+                    SPECIFIC MODDECIMALMP_DECIMALP
+                    RETURN MOD ( N1, N2 ) ;
+                """.trimIndent(),
+                expected = Ast.typeNullType() // TODO
+            ),
+            ParserTestCase(
+                input = """
+                    CREATE FUNCTION "BIT_LENGTH"(
+                        S1 CHARACTER VARYING)
+                    RETURNS NUMERIC
+                    SPECIFIC BIT_LENGTH2
+                    RETURN BIT_LENGTH ( S1 ) ;
+                """.trimIndent(),
+                expected = Ast.typeNullType() // TODO
+            ),
+            // Without parameter name
+            ParserTestCase(
+                input = """
+                    CREATE FUNCTION "BIT_LENGTH"(
+                        CHARACTER VARYING)
+                    RETURNS NUMERIC
+                    SPECIFIC BIT_LENGTH2
+                    RETURN BIT_LENGTH ( S1 ) ;
+                """.trimIndent(),
+                expected = Ast.typeNullType() // TODO
+            ),
+            // Custom type
+            ParserTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld (a custom_type) RETURNS INT RETURN 1;
+                """.trimIndent(),
+                expected = Ast.typeNullType() // TODO
+            ),
+            // Custom type without param name
+            ParserTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld (custom_type) RETURNS INT RETURN 1;
+                """.trimIndent(),
+                expected = Ast.typeNullType() // TODO
+            ),
+            // Pre-defined type without param name
+            ParserTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld (INT) RETURNS INT RETURN 1;
+                """.trimIndent(),
+                expected = Ast.typeNullType() // TODO
+            ),
+        )
+    }
+
+    class CreateBuiltInFunctionTestCases : ArgumentsProviderBase() {
+        private val loader: ClassLoader = PartiQLParserDefault::class.java.classLoader
+        private val resource = loader.getResource("built-in-functions/partiql-converted")!!
+        private val file = File(resource.toURI())
+        override fun getParameters() = file.listFiles()!!.map { statementFile ->
+            val statement = statementFile.readText()
+            ParserTestCase(input = statement, expected = Ast.typeNullType())
+        }
+    }
+
+    class FailingTestCases : ArgumentsProviderBase() {
+        override fun getParameters() = listOf(
+            // Missing FUNCTION
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNC HelloWorld () RETURNS INT RETURN 1;
+                """.trimIndent()
+            ),
+            // No PARENS
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld RETURNS INT RETURN 1;
+                """.trimIndent()
+            ),
+            // RETURN before RETURNS
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld () RETURN 1 RETURNS INT;
+                """.trimIndent()
+            ),
+            // COMMA in arguments
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld (,) RETURNS INT RETURN 1;
+                """.trimIndent()
+            ),
+            // SPECIFIC before RETURNS
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld () SPECIFIC HelloWorld1 RETURNS INT RETURN 1;
+                """.trimIndent()
+            ),
+            // Missing return
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld () RETURNS INT;
+                """.trimIndent()
+            ),
+            // TODO: This should eventually pass
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION SomeCatalog.HelloWorld () RETURNS INT RETURN 1;
+                """.trimIndent()
+            ),
+            // Trailing COMMA
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld (a INT,) RETURNS INT RETURN 1;
+                """.trimIndent()
+            ),
+            // Expression instead of RETURN
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld (a INT) RETURNS INT 1;
+                """.trimIndent()
+            ),
+            // Expression instead of RETURN
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld (a INT) RETURNS INT SELECT 1 FROM <<>>;
+                """.trimIndent()
+            ),
+            // SPECIFIC not name
+            ParserFailingTestCase(
+                input = """
+                    CREATE FUNCTION HelloWorld (a INT) RETURNS INT SPECIFIC 1 RETURN 1;
+                """.trimIndent()
+            ),
+        )
+    }
+
+    abstract class ArgumentsProviderBase : ArgumentsProvider {
+        abstract fun getParameters(): List<Any>
+
+        @Throws(Exception::class)
+        override fun provideArguments(extensionContext: ExtensionContext): Stream<out Arguments>? {
+            return getParameters().map { Arguments.of(it) }.stream()
+        }
+    }
+}