-
-
Notifications
You must be signed in to change notification settings - Fork 261
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat: add sql grammar with pratt parser and tests (#983)
- Loading branch information
1 parent
a0a92fb
commit 57daac4
Showing
4 changed files
with
482 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,190 @@ | ||
| Command = _{ SOI ~ (Query | ExplainQuery | DDL | ACL) ~ EOF } | ||
|
|
||
| ACL = _{ DropRole | DropUser | CreateRole | CreateUser | AlterUser | GrantPrivilege | RevokePrivilege } | ||
| CreateUser = { | ||
| ^"create" ~ ^"user" ~ Identifier ~ (^"with")? ~ ^"password" ~ SingleQuotedString ~ | ||
| AuthMethod? | ||
| } | ||
| AlterUser = { | ||
| ^"alter" ~ ^"user" ~ Identifier ~ (^"with")? ~ AlterOption | ||
| } | ||
| AlterOption = _{ AlterLogin | AlterNoLogin | AlterPassword } | ||
| AlterLogin = { ^"login" } | ||
| AlterNoLogin = { ^"nologin" } | ||
| AlterPassword = { ^"password" ~ SingleQuotedString ~ AuthMethod? } | ||
| AuthMethod = { ^"using" ~ (ChapSha1 | Md5 | Ldap) } | ||
| ChapSha1 = { ^"chap-sha1" } | ||
| Md5 = { ^"md5" } | ||
| Ldap = { ^"ldap" } | ||
| DropUser = { ^"drop" ~ ^"user" ~ Identifier } | ||
| CreateRole = { ^"create" ~ ^"role" ~ Identifier } | ||
| DropRole = { ^"drop" ~ ^"role" ~ Identifier } | ||
| GrantPrivilege = { ^"grant" ~ PrivBlock ~ ^"to" ~ Identifier } | ||
| RevokePrivilege = { ^"revoke" ~ PrivBlock ~ ^"from" ~ Identifier } | ||
| PrivBlock = _{ PrivBlockPrivilege | PrivBlockRolePass } | ||
| PrivBlockPrivilege = {Privilege ~ (PrivBlockUser | PrivBlockSpecificUser | PrivBlockRole | ||
| | PrivBlockSpecificRole | PrivBlockTable | PrivBlockSpecificTable)} | ||
| PrivBlockUser = { ^"user" } | ||
| PrivBlockSpecificUser = { ^"on" ~ ^"user" ~ Identifier } | ||
| PrivBlockRole = { ^"role" } | ||
| PrivBlockSpecificRole = { ^"on" ~ ^"role" ~ Identifier } | ||
| PrivBlockTable = { ^"table" } | ||
| PrivBlockSpecificTable = { ^"on" ~ ^"table" ~ Identifier } | ||
| PrivBlockRolePass = { Identifier } | ||
| Privilege = _{ PrivilegeRead | PrivilegeWrite | PrivilegeExecute | | ||
| PrivilegeCreate | PrivilegeAlter | PrivilegeDrop | | ||
| PrivilegeSession | PrivilegeUsage } | ||
| PrivilegeAlter = { ^"alter" } | ||
| PrivilegeCreate = { ^"create" } | ||
| PrivilegeDrop = { ^"drop" } | ||
| PrivilegeExecute = { ^"execute" } | ||
| PrivilegeRead = { ^"read" } | ||
| PrivilegeSession = { ^"session" } | ||
| PrivilegeUsage = { ^"usage" } | ||
| PrivilegeWrite = { ^"write" } | ||
|
|
||
| DDL = _{ CreateTable | DropTable | CreateProc } | ||
| CreateTable = { | ||
| ^"create" ~ ^"table" ~ Identifier ~ | ||
| "(" ~ Columns ~ "," ~ PrimaryKey ~ ")" ~ | ||
| Distribution | ||
| } | ||
| Columns = { ColumnDef ~ ("," ~ ColumnDef)* } | ||
| ColumnDef = { Identifier ~ ColumnDefType ~ ColumnDefIsNull? } | ||
| ColumnDefIsNull = { NotFlag? ~ ^"null" } | ||
| PrimaryKey = { | ||
| ^"primary" ~ ^"key" ~ | ||
| "(" ~ Identifier ~ ("," ~ Identifier)* ~ ")" | ||
| } | ||
| Distribution = { ^"distributed" ~ (Global | Sharding) } | ||
| Global = { ^"globally" } | ||
| Sharding = { ^"by" ~ "(" ~ Identifier ~ ("," ~ Identifier)* ~ ")"} | ||
| DropTable = { ^"drop" ~ ^"table" ~ Identifier } | ||
|
|
||
| CreateProc = { | ||
| ^"create" ~ ^"procedure" ~ Identifier ~ | ||
| "(" ~ ProcParams? ~ ")" ~ (^"language" ~ ProcLanguage)? ~ | ||
| ((^"as" ~ "$$" ~ ProcBody ~ "$$") | (^"begin" ~ "atomic" ~ ProcBody ~ "end")) | ||
| } | ||
| ProcParams = { ProcParamDef ~ ("," ~ ProcParamDef)* } | ||
| ProcParamDef = { ColumnDefType } | ||
| ProcLanguage = { SQL } | ||
| SQL = { ^"sql" } | ||
| ProcBody = { (Insert | Update | Delete) } | ||
|
|
||
| ExplainQuery = _{ Explain } | ||
| Explain = { ^"explain" ~ Query } | ||
|
|
||
| Query = { (SelectWithOptionalContinuation | Values | Insert | Update | Delete) } | ||
| SelectWithOptionalContinuation = { Select ~ (ExceptContinuation | UnionAllContinuation)? } | ||
| ExceptContinuation = { ((^"except" ~ ^"distinct") | ^"except") ~ Select } | ||
| UnionAllContinuation = { ^"union" ~ ^"all" ~ Select } | ||
| Select = { | ||
| ^"select" ~ Projection ~ ^"from" ~ Scan ~ | ||
| Join? ~ WhereClause? ~ | ||
| (^"group" ~ ^"by" ~ GroupBy)? ~ | ||
| (^"having" ~ Having)? | ||
| } | ||
| Projection = { Distinct? ~ ProjectionElement ~ ("," ~ ProjectionElement)* } | ||
| ProjectionElement = _{ Asterisk | Column } | ||
| Column = { Expr ~ ((^"as")? ~ Identifier)? } | ||
| Asterisk = { "*" } | ||
| WhereClause = _{ ^"where" ~ Selection } | ||
| Selection = { Expr } | ||
| Scan = { (Identifier | SubQuery) ~ ((^"as")? ~ Identifier)? } | ||
| Join = { JoinKind? ~ ^"join" ~ Scan ~ ^"on" ~ Expr } | ||
| JoinKind = _{ ( InnerJoinKind | LeftJoinKind ) } | ||
| InnerJoinKind = { ^"inner" } | ||
| LeftJoinKind = { ^"left" ~ (^"outer")? } | ||
| GroupBy = { Expr ~ ("," ~ Expr)* } | ||
| Having = { Expr } | ||
| SubQuery = { "(" ~ (SelectWithOptionalContinuation | Values) ~ ")" } | ||
| Insert = { ^"insert" ~ ^"into" ~ Identifier ~ ("(" ~ TargetColumns ~ ")")? ~ (Values | Select) ~ OnConflict? } | ||
| TargetColumns = { Identifier ~ ("," ~ Identifier)* } | ||
| OnConflict = _{ ^"on conflict" ~ ^"do" ~ (DoNothing | DoReplace | DoFail) } | ||
| DoReplace = { ^"replace" } | ||
| DoNothing = { ^"nothing" } | ||
| DoFail = { ^"fail" } | ||
| Update = { ^"update" ~ Identifier ~ ^"set" ~ UpdateList ~ (UpdateFrom | WhereClause)? } | ||
| UpdateList = { UpdateItem ~ ("," ~ UpdateItem)* } | ||
| UpdateItem = { Identifier ~ "=" ~ Expr } | ||
| UpdateFrom = _{ ^"from" ~ Scan ~ (^"where" ~ Expr)? } | ||
| Values = { ^"values" ~ Row ~ ("," ~ Row)* } | ||
| Delete = { ^"delete" ~ ^"from" ~ Identifier ~ (^"where" ~ DeleteFilter)? } | ||
| DeleteFilter = { Expr } | ||
|
|
||
| Identifier = @{ DoubleQuotedIdentifier | IdentifierInner } | ||
| DoubleQuotedIdentifier = @{ ("\"" ~ IdentifierInner ~ "\"") } | ||
| IdentifierInner = @{ !(Keyword ~ ("(" | WHITESPACE | "," | EOF)) ~ (IdentifierNonDigit ~ (IdentifierNonDigit | ASCII_DIGIT)*) } | ||
| IdentifierNonDigit = _{ ('a'..'z' | 'A' .. 'Z' | 'А' .. 'Я' | 'а' .. 'я' | "-" | "_") } | ||
| Keyword = { ^"left" | ^"having" | ^"not" | ^"inner" | ^"group" | ||
| | ^"on" | ^"join" | ^"from" | ^"exists" | ^"except" | ||
| | ^"union" | ^"where" | ^"distinct" | ^"between" | ^"option" | ||
| | ^"values"} | ||
|
|
||
| Expr = { ExprAtomValue ~ (ExprInfixOp ~ ExprAtomValue)* } | ||
| ExprInfixOp = _{ Between | ArithInfixOp | CmpInfixOp | ConcatInfixOp | And | Or } | ||
| Between = { NotFlag? ~ ^"between" } | ||
| And = { ^"and" } | ||
| Or = { ^"or" } | ||
| ConcatInfixOp = { "||" } | ||
| ArithInfixOp = _{ Add | Subtract | Multiply | Divide } | ||
| Add = { "+" } | ||
| Subtract = { "-" } | ||
| Multiply = { "*" } | ||
| Divide = { "/" } | ||
| CmpInfixOp = _{ NotEq | GtEq | Gt | LtEq | Lt | Eq | Lt | In } | ||
| Eq = { "=" } | ||
| Gt = { ">" } | ||
| GtEq = { ">=" } | ||
| Lt = { "<" } | ||
| LtEq = { "<=" } | ||
| NotEq = { "<>" | "!=" } | ||
| In = { NotFlag? ~ ^"in" } | ||
| ExprAtomValue = _{ UnaryNot* ~ AtomicExpr ~ IsNullPostfix? } | ||
| UnaryNot = @{ NotFlag } | ||
| IsNullPostfix = { ^"is" ~ NotFlag? ~ ^"null" } | ||
| AtomicExpr = _{ Literal | Parameter | Cast | IdentifierWithOptionalContinuation | ExpressionInParentheses | UnaryOperator | SubQuery | Row } | ||
| Literal = _{ True | False | Null | Double | Decimal | Unsigned | Integer | SingleQuotedString } | ||
| True = { ^"true" } | ||
| False = { ^"false" } | ||
| Null = { ^"null" } | ||
| Decimal = @{ Integer ~ ("." ~ ASCII_DIGIT*) } | ||
| Double = @{ Integer ~ ("." ~ ASCII_DIGIT*)? ~ (^"e" ~ Integer) } | ||
| Integer = @{ ("+" | "-")? ~ ASCII_DIGIT+ } | ||
| Unsigned = @{ ASCII_DIGIT+ } | ||
| SingleQuotedString = @{ OnlyQuotesSequence | AnythingButQuotesSequence } | ||
| OnlyQuotesSequence = @{ ("'" ~ "'")+ } | ||
| AnythingButQuotesSequence = @{ "'" ~ (!("'") ~ ANY)* ~ "'" } | ||
| Parameter = { PgParameter | QuestionParameter } | ||
| QuestionParameter = @{ "?" } | ||
| PgParameter = { "$" ~ Unsigned } | ||
| IdentifierWithOptionalContinuation = { Identifier ~ (ReferenceContinuation | FunctionInvocationContinuation)? } | ||
| ReferenceContinuation = { "." ~ Identifier } | ||
| FunctionInvocationContinuation = { "(" ~ (CountAsterisk | FunctionArgs)? ~ ")" } | ||
| FunctionArgs = { Distinct? ~ (Expr ~ ("," ~ Expr)*)? } | ||
| CountAsterisk = { "*" } | ||
| ExpressionInParentheses = { "(" ~ Expr ~ ")" } | ||
| Cast = { ^"cast" ~ "(" ~ Expr ~ ^"as" ~ TypeCast ~ ")" } | ||
| TypeCast = _{ TypeAny | ColumnDefType } | ||
| ColumnDefType = { TypeBool | TypeDecimal | TypeDouble | TypeInt | TypeNumber | ||
| | TypeScalar | TypeString | TypeText | TypeUnsigned | TypeVarchar } | ||
| TypeAny = { ^"any" } | ||
| TypeBool = { (^"boolean" | ^"bool") } | ||
| TypeDecimal = { ^"decimal" } | ||
| TypeDouble = { ^"double" } | ||
| TypeInt = { (^"integer" | ^"int") } | ||
| TypeNumber = { ^"number" } | ||
| TypeScalar = { ^"scalar" } | ||
| TypeString = { ^"string" } | ||
| TypeText = { ^"text" } | ||
| TypeUnsigned = { ^"unsigned" } | ||
| TypeVarchar = { ^"varchar" ~ "(" ~ Unsigned ~ ")" } | ||
| UnaryOperator = _{ Exists } | ||
| Exists = { NotFlag? ~ ^"exists" ~ SubQuery } | ||
| Row = { "(" ~ Expr ~ ("," ~ Expr)* ~ ")" } | ||
|
|
||
| Distinct = { ^"distinct" } | ||
| NotFlag = { ^"not" } | ||
| EOF = { EOI | ";" } | ||
| WHITESPACE = _{ " " | "\t" | "\n" | "\r\n" } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.