From 0851d957d3195799da9dfc0c46b3ee0a732ddf87 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 10:45:21 -0400
Subject: [PATCH 01/18] Added new macros array_append and create_array and
 integration tests

---
 .../data/cross_db/data_array_append.csv       |  2 ++
 .../data/cross_db/data_create_array.csv       |  2 ++
 .../models/cross_db_utils/schema.yml          | 12 +++++++
 .../cross_db_utils/test_array_append.sql      | 33 +++++++++++++++++++
 .../cross_db_utils/test_create_array.sql      | 12 +++++++
 macros/cross_db_utils/array_append.sql        | 15 +++++++++
 macros/cross_db_utils/create_array.sql        | 19 +++++++++++
 7 files changed, 95 insertions(+)
 create mode 100644 integration_tests/data/cross_db/data_array_append.csv
 create mode 100644 integration_tests/data/cross_db/data_create_array.csv
 create mode 100644 integration_tests/models/cross_db_utils/test_array_append.sql
 create mode 100644 integration_tests/models/cross_db_utils/test_create_array.sql
 create mode 100644 macros/cross_db_utils/array_append.sql
 create mode 100644 macros/cross_db_utils/create_array.sql

diff --git a/integration_tests/data/cross_db/data_array_append.csv b/integration_tests/data/cross_db/data_array_append.csv
new file mode 100644
index 00000000..8775fe12
--- /dev/null
+++ b/integration_tests/data/cross_db/data_array_append.csv
@@ -0,0 +1,2 @@
+array_as_string,element,result_as_string
+"[1,""hello"",true,undefined]",4,"[1,""hello"",true,undefined,4]"
\ No newline at end of file
diff --git a/integration_tests/data/cross_db/data_create_array.csv b/integration_tests/data/cross_db/data_create_array.csv
new file mode 100644
index 00000000..6a205d83
--- /dev/null
+++ b/integration_tests/data/cross_db/data_create_array.csv
@@ -0,0 +1,2 @@
+num_input,string_input,boolean_input,null_input,result_as_string
+1,hello,true,null,"[1,""hello"",true,undefined]"
\ No newline at end of file
diff --git a/integration_tests/models/cross_db_utils/schema.yml b/integration_tests/models/cross_db_utils/schema.yml
index e1473c9f..98382339 100644
--- a/integration_tests/models/cross_db_utils/schema.yml
+++ b/integration_tests/models/cross_db_utils/schema.yml
@@ -6,6 +6,12 @@ models:
       - dbt_utils.equality:
           compare_model: ref('data_any_value_expected')
 
+  - name: test_array_append
+    tests:
+      - assert_equal:
+          actual: actual
+          expected: expected
+          
   - name: test_bool_or
     tests:
       - dbt_utils.equality:
@@ -16,6 +22,12 @@ models:
       - assert_equal:
           actual: actual
           expected: expected
+
+  - name: test_create_array
+    tests:
+      - assert_equal:
+          actual: actual
+          expected: expected
         
   - name: test_current_timestamp
     tests:
diff --git a/integration_tests/models/cross_db_utils/test_array_append.sql b/integration_tests/models/cross_db_utils/test_array_append.sql
new file mode 100644
index 00000000..757ec43e
--- /dev/null
+++ b/integration_tests/models/cross_db_utils/test_array_append.sql
@@ -0,0 +1,33 @@
+with data as (
+
+    select 
+        data_array_append.element,
+        data_array_append.result_as_string,
+        data_create_array.num_input,
+        data_create_array.string_input,
+        data_create_array.boolean_input,
+        data_create_array.null_input
+    from {{ ref('data_array_append') }} as data_array_append
+    left join {{ ref('data_create_array') }} as data_create_array
+    on data_array_append.array_as_string = data_create_array.result_as_string
+
+),
+
+create_array as (
+    select
+
+        {{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as array,
+        element,
+        result_as_string as expected
+
+    from data
+
+)
+
+select
+
+    {{ dbt_utils.array_append('array', 'element') }} as array_actual,
+    cast({{ dbt_utils.array_append('array', 'element') }} as string) as actual,
+    expected
+
+from create_array
\ No newline at end of file
diff --git a/integration_tests/models/cross_db_utils/test_create_array.sql b/integration_tests/models/cross_db_utils/test_create_array.sql
new file mode 100644
index 00000000..025f4687
--- /dev/null
+++ b/integration_tests/models/cross_db_utils/test_create_array.sql
@@ -0,0 +1,12 @@
+with data as (
+
+    select * from {{ ref('data_create_array') }}
+
+)
+
+select
+    {{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as array_actual,
+    cast({{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as string) as actual,
+    result_as_string as expected
+
+from data
\ No newline at end of file
diff --git a/macros/cross_db_utils/array_append.sql b/macros/cross_db_utils/array_append.sql
new file mode 100644
index 00000000..50995bfd
--- /dev/null
+++ b/macros/cross_db_utils/array_append.sql
@@ -0,0 +1,15 @@
+{% macro array_append(array, new_element) -%}
+  {{ return(adapter.dispatch('array_append', 'dbt_utils')(array, new_element)) }}
+{%- endmacro %}
+
+{% macro default__array_append(array, new_element) -%}
+    array_append({{ array }}, {{ new_element }})
+{%- endmacro %}
+
+{% macro bigquery__array_append(array, new_element) -%}
+    array_concat({{ array }}, {{ create_array(new_element) }})
+{%- endmacro %}
+
+{% macro redshift__array_append(array, new_element) -%}
+    array_concat({{ array }}, {{ create_array(new_element) }})
+{%- endmacro %}
\ No newline at end of file
diff --git a/macros/cross_db_utils/create_array.sql b/macros/cross_db_utils/create_array.sql
new file mode 100644
index 00000000..3c49cba6
--- /dev/null
+++ b/macros/cross_db_utils/create_array.sql
@@ -0,0 +1,19 @@
+{% macro create_array(inputs) -%}
+  {{ return(adapter.dispatch('array', 'dbt_utils')(inputs)) }}
+{%- endmacro %}
+
+{% macro default__array(inputs) -%}
+    array[ {{ inputs }} ]
+{%- endmacro %}
+
+{% macro snowflake__array(inputs) -%}
+    array_construct( {{ inputs|join(' , ') }} )
+{%- endmacro %}
+
+{% macro redshift__array(inputs) -%}
+    array( {{ inputs }} )
+{%- endmacro %}
+
+{% macro bigquery__array(inputs) -%}
+    [ {{ inputs }} ]
+{%- endmacro %}
\ No newline at end of file

From 16f12ac0a1cb719f79800d7e899802bec5e3ddbc Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 10:50:36 -0400
Subject: [PATCH 02/18] updated casting to use type_string

---
 integration_tests/models/cross_db_utils/test_array_append.sql | 2 +-
 integration_tests/models/cross_db_utils/test_create_array.sql | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/integration_tests/models/cross_db_utils/test_array_append.sql b/integration_tests/models/cross_db_utils/test_array_append.sql
index 757ec43e..882c458e 100644
--- a/integration_tests/models/cross_db_utils/test_array_append.sql
+++ b/integration_tests/models/cross_db_utils/test_array_append.sql
@@ -27,7 +27,7 @@ create_array as (
 select
 
     {{ dbt_utils.array_append('array', 'element') }} as array_actual,
-    cast({{ dbt_utils.array_append('array', 'element') }} as string) as actual,
+    cast({{ dbt_utils.array_append('array', 'element') }} as {{ dbt_utils.type_string() }}) as actual,
     expected
 
 from create_array
\ No newline at end of file
diff --git a/integration_tests/models/cross_db_utils/test_create_array.sql b/integration_tests/models/cross_db_utils/test_create_array.sql
index 025f4687..79f5e09a 100644
--- a/integration_tests/models/cross_db_utils/test_create_array.sql
+++ b/integration_tests/models/cross_db_utils/test_create_array.sql
@@ -6,7 +6,7 @@ with data as (
 
 select
     {{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as array_actual,
-    cast({{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as string) as actual,
+    cast({{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as {{ dbt_utils.type_string() }}) as actual,
     result_as_string as expected
 
 from data
\ No newline at end of file

From 299fa789edd1a184b333363c55815adc4ffe14ec Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 10:58:03 -0400
Subject: [PATCH 03/18] joined list togeter

---
 macros/cross_db_utils/array_append.sql | 4 ++--
 macros/cross_db_utils/create_array.sql | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/macros/cross_db_utils/array_append.sql b/macros/cross_db_utils/array_append.sql
index 50995bfd..bbbb5957 100644
--- a/macros/cross_db_utils/array_append.sql
+++ b/macros/cross_db_utils/array_append.sql
@@ -7,9 +7,9 @@
 {%- endmacro %}
 
 {% macro bigquery__array_append(array, new_element) -%}
-    array_concat({{ array }}, {{ create_array(new_element) }})
+    array_concat({{ array }}, {{ dbt_utils.create_array(new_element) }})
 {%- endmacro %}
 
 {% macro redshift__array_append(array, new_element) -%}
-    array_concat({{ array }}, {{ create_array(new_element) }})
+    array_concat({{ array }}, {{ dbt_utils.create_array(new_element) }})
 {%- endmacro %}
\ No newline at end of file
diff --git a/macros/cross_db_utils/create_array.sql b/macros/cross_db_utils/create_array.sql
index 3c49cba6..5e42a065 100644
--- a/macros/cross_db_utils/create_array.sql
+++ b/macros/cross_db_utils/create_array.sql
@@ -3,7 +3,7 @@
 {%- endmacro %}
 
 {% macro default__array(inputs) -%}
-    array[ {{ inputs }} ]
+    array[ {{ inputs|join(' , ') }} ]
 {%- endmacro %}
 
 {% macro snowflake__array(inputs) -%}
@@ -11,9 +11,9 @@
 {%- endmacro %}
 
 {% macro redshift__array(inputs) -%}
-    array( {{ inputs }} )
+    array( {{ inputs|join(' , ') }} )
 {%- endmacro %}
 
 {% macro bigquery__array(inputs) -%}
-    [ {{ inputs }} ]
+    [ {{ inputs|join(' , ') }} ]
 {%- endmacro %}
\ No newline at end of file

From b656aea5ec688763a48060c2a50fd45a64b82179 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 12:06:44 -0400
Subject: [PATCH 04/18] updated functionality to only allow for single data
 type in array to be compatible with postgres

---
 integration_tests/data/cross_db/data_array_append.csv    | 2 +-
 integration_tests/data/cross_db/data_create_array.csv    | 4 ++--
 .../models/cross_db_utils/test_array_append.sql          | 9 ++++-----
 .../models/cross_db_utils/test_create_array.sql          | 4 ++--
 macros/cross_db_utils/array_append.sql                   | 1 +
 macros/cross_db_utils/create_array.sql                   | 1 +
 6 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/integration_tests/data/cross_db/data_array_append.csv b/integration_tests/data/cross_db/data_array_append.csv
index 8775fe12..46dda688 100644
--- a/integration_tests/data/cross_db/data_array_append.csv
+++ b/integration_tests/data/cross_db/data_array_append.csv
@@ -1,2 +1,2 @@
 array_as_string,element,result_as_string
-"[1,""hello"",true,undefined]",4,"[1,""hello"",true,undefined,4]"
\ No newline at end of file
+"[1,2,3]",4,"[1,2,3,4]"
\ No newline at end of file
diff --git a/integration_tests/data/cross_db/data_create_array.csv b/integration_tests/data/cross_db/data_create_array.csv
index 6a205d83..be497c39 100644
--- a/integration_tests/data/cross_db/data_create_array.csv
+++ b/integration_tests/data/cross_db/data_create_array.csv
@@ -1,2 +1,2 @@
-num_input,string_input,boolean_input,null_input,result_as_string
-1,hello,true,null,"[1,""hello"",true,undefined]"
\ No newline at end of file
+num_input_1,num_input_2,num_input_3,result_as_string
+1,2,3,"[1,2,3]"
\ No newline at end of file
diff --git a/integration_tests/models/cross_db_utils/test_array_append.sql b/integration_tests/models/cross_db_utils/test_array_append.sql
index 882c458e..f56c41e5 100644
--- a/integration_tests/models/cross_db_utils/test_array_append.sql
+++ b/integration_tests/models/cross_db_utils/test_array_append.sql
@@ -3,10 +3,9 @@ with data as (
     select 
         data_array_append.element,
         data_array_append.result_as_string,
-        data_create_array.num_input,
-        data_create_array.string_input,
-        data_create_array.boolean_input,
-        data_create_array.null_input
+        data_create_array.num_input_1,
+        data_create_array.num_input_2,
+        data_create_array.num_input_3
     from {{ ref('data_array_append') }} as data_array_append
     left join {{ ref('data_create_array') }} as data_create_array
     on data_array_append.array_as_string = data_create_array.result_as_string
@@ -16,7 +15,7 @@ with data as (
 create_array as (
     select
 
-        {{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as array,
+        {{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as array,
         element,
         result_as_string as expected
 
diff --git a/integration_tests/models/cross_db_utils/test_create_array.sql b/integration_tests/models/cross_db_utils/test_create_array.sql
index 79f5e09a..b10edfe4 100644
--- a/integration_tests/models/cross_db_utils/test_create_array.sql
+++ b/integration_tests/models/cross_db_utils/test_create_array.sql
@@ -5,8 +5,8 @@ with data as (
 )
 
 select
-    {{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as array_actual,
-    cast({{ dbt_utils.create_array(['num_input', 'string_input', 'boolean_input', 'null_input']) }} as {{ dbt_utils.type_string() }}) as actual,
+    {{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as array_actual,
+    cast({{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as {{ dbt_utils.type_string() }}) as actual,
     result_as_string as expected
 
 from data
\ No newline at end of file
diff --git a/macros/cross_db_utils/array_append.sql b/macros/cross_db_utils/array_append.sql
index bbbb5957..ee328bf1 100644
--- a/macros/cross_db_utils/array_append.sql
+++ b/macros/cross_db_utils/array_append.sql
@@ -2,6 +2,7 @@
   {{ return(adapter.dispatch('array_append', 'dbt_utils')(array, new_element)) }}
 {%- endmacro %}
 
+{# new_element must be the same data type as elements in array to match postgres functionality #}
 {% macro default__array_append(array, new_element) -%}
     array_append({{ array }}, {{ new_element }})
 {%- endmacro %}
diff --git a/macros/cross_db_utils/create_array.sql b/macros/cross_db_utils/create_array.sql
index 5e42a065..6211a5c4 100644
--- a/macros/cross_db_utils/create_array.sql
+++ b/macros/cross_db_utils/create_array.sql
@@ -2,6 +2,7 @@
   {{ return(adapter.dispatch('array', 'dbt_utils')(inputs)) }}
 {%- endmacro %}
 
+{# all inputs must be the same data type to match postgres functionality #}
 {% macro default__array(inputs) -%}
     array[ {{ inputs|join(' , ') }} ]
 {%- endmacro %}

From ed205f75082da2f40f84a55c059700c2ebc651e6 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 12:35:35 -0400
Subject: [PATCH 05/18] updated test_array_append

---
 .../cross_db_utils/test_array_append.sql      | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/integration_tests/models/cross_db_utils/test_array_append.sql b/integration_tests/models/cross_db_utils/test_array_append.sql
index f56c41e5..b1346624 100644
--- a/integration_tests/models/cross_db_utils/test_array_append.sql
+++ b/integration_tests/models/cross_db_utils/test_array_append.sql
@@ -10,23 +10,12 @@ with data as (
     left join {{ ref('data_create_array') }} as data_create_array
     on data_array_append.array_as_string = data_create_array.result_as_string
 
-),
-
-create_array as (
-    select
-
-        {{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as array,
-        element,
-        result_as_string as expected
-
-    from data
-
 )
 
 select
 
-    {{ dbt_utils.array_append('array', 'element') }} as array_actual,
-    cast({{ dbt_utils.array_append('array', 'element') }} as {{ dbt_utils.type_string() }}) as actual,
-    expected
+    {{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as array_actual,
+    cast({{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as {{ dbt_utils.type_string() }}) as actual,
+    result_as_string as expected
 
-from create_array
\ No newline at end of file
+from data
\ No newline at end of file

From 3918e5376c6e7bb748d9c7cf8b26ea85983e5e80 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 15:02:22 -0400
Subject: [PATCH 06/18] replaced {} with [] for matching in postgres

---
 .../cross_db_utils/test_array_append.sql      | 22 ++++++++++++++-----
 .../cross_db_utils/test_create_array.sql      | 21 +++++++++++++-----
 2 files changed, 32 insertions(+), 11 deletions(-)

diff --git a/integration_tests/models/cross_db_utils/test_array_append.sql b/integration_tests/models/cross_db_utils/test_array_append.sql
index b1346624..4c8772f8 100644
--- a/integration_tests/models/cross_db_utils/test_array_append.sql
+++ b/integration_tests/models/cross_db_utils/test_array_append.sql
@@ -10,12 +10,22 @@ with data as (
     left join {{ ref('data_create_array') }} as data_create_array
     on data_array_append.array_as_string = data_create_array.result_as_string
 
-)
+),
 
-select
+appended_array as (
 
-    {{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as array_actual,
-    cast({{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as {{ dbt_utils.type_string() }}) as actual,
-    result_as_string as expected
+    select
+        {{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as array_actual,
+        cast({{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as {{ dbt_utils.type_string() }}) as actual,
+        result_as_string as expected
+    from data
 
-from data
\ No newline at end of file
+)
+
+-- when casting as array to string, postgres uses {} (ex: {1,2,3}) while other dbs use [] (ex: [1,2,3])
+-- we need to cast the arrays to strings in order to compare them to the output in our seed file  
+select
+    array_actual,
+    {{ dbt_utils.replace(dbt_utils.replace('actual',"'}'","']'"),"'{'","'['") }} as actual,
+    expected
+from appended_array
\ No newline at end of file
diff --git a/integration_tests/models/cross_db_utils/test_create_array.sql b/integration_tests/models/cross_db_utils/test_create_array.sql
index b10edfe4..d111877c 100644
--- a/integration_tests/models/cross_db_utils/test_create_array.sql
+++ b/integration_tests/models/cross_db_utils/test_create_array.sql
@@ -2,11 +2,22 @@ with data as (
 
     select * from {{ ref('data_create_array') }}
 
+),
+
+create_array as (
+    select
+        {{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as array_actual,
+        cast({{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as {{ dbt_utils.type_string() }}) as actual,
+        result_as_string as expected
+
+    from data
+
 )
 
+-- when casting as array to string, postgres uses {} (ex: {1,2,3}) while other dbs use [] (ex: [1,2,3])
+-- we need to cast the arrays to strings in order to compare them to the output in our seed file  
 select
-    {{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as array_actual,
-    cast({{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as {{ dbt_utils.type_string() }}) as actual,
-    result_as_string as expected
-
-from data
\ No newline at end of file
+    array_actual,
+    {{ dbt_utils.replace(dbt_utils.replace('actual',"'}'","']'"),"'{'","'['") }} as actual,
+    expected
+from create_array
\ No newline at end of file

From 4e1ae2218b832bafcb329148712cee0f90836f07 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 15:31:16 -0400
Subject: [PATCH 07/18] fixed redshift

---
 macros/cross_db_utils/array_append.sql | 4 ++--
 macros/cross_db_utils/create_array.sql | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/macros/cross_db_utils/array_append.sql b/macros/cross_db_utils/array_append.sql
index ee328bf1..77b84e2c 100644
--- a/macros/cross_db_utils/array_append.sql
+++ b/macros/cross_db_utils/array_append.sql
@@ -8,9 +8,9 @@
 {%- endmacro %}
 
 {% macro bigquery__array_append(array, new_element) -%}
-    array_concat({{ array }}, {{ dbt_utils.create_array(new_element) }})
+    array_concat({{ array }}, {{ dbt_utils.create_array([new_element]) }})
 {%- endmacro %}
 
 {% macro redshift__array_append(array, new_element) -%}
-    array_concat({{ array }}, {{ dbt_utils.create_array(new_element) }})
+    array_concat({{ array }}, {{ dbt_utils.create_array([new_element]) }})
 {%- endmacro %}
\ No newline at end of file
diff --git a/macros/cross_db_utils/create_array.sql b/macros/cross_db_utils/create_array.sql
index 6211a5c4..0afde91a 100644
--- a/macros/cross_db_utils/create_array.sql
+++ b/macros/cross_db_utils/create_array.sql
@@ -1,4 +1,4 @@
-{% macro create_array(inputs) -%}
+{% macro create_array(inputs=[]) -%}
   {{ return(adapter.dispatch('array', 'dbt_utils')(inputs)) }}
 {%- endmacro %}
 

From dcb915c14eaf5e1dca9ace25e66653f83e06a511 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 16:39:45 -0400
Subject: [PATCH 08/18] Added cast_array_to_string macro

---
 .../cross_db_utils/test_array_append.sql      |  3 +--
 .../cross_db_utils/test_create_array.sql      |  4 +---
 .../cross_db_utils/cast_array_to_string.sql   | 20 +++++++++++++++++++
 3 files changed, 22 insertions(+), 5 deletions(-)
 create mode 100644 macros/cross_db_utils/cast_array_to_string.sql

diff --git a/integration_tests/models/cross_db_utils/test_array_append.sql b/integration_tests/models/cross_db_utils/test_array_append.sql
index 4c8772f8..dd13fa46 100644
--- a/integration_tests/models/cross_db_utils/test_array_append.sql
+++ b/integration_tests/models/cross_db_utils/test_array_append.sql
@@ -16,7 +16,6 @@ appended_array as (
 
     select
         {{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as array_actual,
-        cast({{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as {{ dbt_utils.type_string() }}) as actual,
         result_as_string as expected
     from data
 
@@ -26,6 +25,6 @@ appended_array as (
 -- we need to cast the arrays to strings in order to compare them to the output in our seed file  
 select
     array_actual,
-    {{ dbt_utils.replace(dbt_utils.replace('actual',"'}'","']'"),"'{'","'['") }} as actual,
+    {{ dbt_utils.cast_array_to_string('array_actual') }} as actual,
     expected
 from appended_array
\ No newline at end of file
diff --git a/integration_tests/models/cross_db_utils/test_create_array.sql b/integration_tests/models/cross_db_utils/test_create_array.sql
index d111877c..bc5b222b 100644
--- a/integration_tests/models/cross_db_utils/test_create_array.sql
+++ b/integration_tests/models/cross_db_utils/test_create_array.sql
@@ -7,17 +7,15 @@ with data as (
 create_array as (
     select
         {{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as array_actual,
-        cast({{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as {{ dbt_utils.type_string() }}) as actual,
         result_as_string as expected
 
     from data
 
 )
 
--- when casting as array to string, postgres uses {} (ex: {1,2,3}) while other dbs use [] (ex: [1,2,3])
 -- we need to cast the arrays to strings in order to compare them to the output in our seed file  
 select
     array_actual,
-    {{ dbt_utils.replace(dbt_utils.replace('actual',"'}'","']'"),"'{'","'['") }} as actual,
+    {{ dbt_utils.cast_array_to_string('array_actual') }} as actual,
     expected
 from create_array
\ No newline at end of file
diff --git a/macros/cross_db_utils/cast_array_to_string.sql b/macros/cross_db_utils/cast_array_to_string.sql
new file mode 100644
index 00000000..7a44f6d2
--- /dev/null
+++ b/macros/cross_db_utils/cast_array_to_string.sql
@@ -0,0 +1,20 @@
+{% macro cast_array_to_string(field) %}
+  {{ adapter.dispatch('cast_array_to_string', 'dbt_utils') (field) }}
+{% endmacro %}
+
+{% macro default__cast_array_to_string(field) %}
+    cast({{ field }} as {{ dbt_utils.type_string() }})
+{% endmacro %}
+
+{% macro postgres__cast_array_to_string(field) %}
+    cast({{ dbt_utils.replace(dbt_utils.replace(field,"'}'","']'"),"'{'","'['") }} as {{ dbt_utils.type_string() }})
+{% endmacro %}
+
+{# redshift should use default instead of postgres #}
+{% macro redshift__cast_array_to_string(field) %}
+    cast({{ field }} as {{ dbt_utils.type_string() }})
+{% endmacro %}
+
+{% macro bigquery__cast_array_to_string(field) %}
+    '['||(select string_agg(cast(element as string), ',') from unnest({{ field }}) element)||']'
+{% endmacro %}

From b47d0302bbe702e1ad8add2e452b14d525620fea Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 18 May 2022 16:53:20 -0400
Subject: [PATCH 09/18] updated postgres cast_array_to_string

---
 macros/cross_db_utils/cast_array_to_string.sql | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/macros/cross_db_utils/cast_array_to_string.sql b/macros/cross_db_utils/cast_array_to_string.sql
index 7a44f6d2..05226a82 100644
--- a/macros/cross_db_utils/cast_array_to_string.sql
+++ b/macros/cross_db_utils/cast_array_to_string.sql
@@ -7,7 +7,8 @@
 {% endmacro %}
 
 {% macro postgres__cast_array_to_string(field) %}
-    cast({{ dbt_utils.replace(dbt_utils.replace(field,"'}'","']'"),"'{'","'['") }} as {{ dbt_utils.type_string() }})
+    {%- set field_as_string -%}cast({{ field }} as {{ dbt_utils.type_string() }}){%- endset -%}
+    {{ dbt_utils.replace(dbt_utils.replace(field_as_string,"'}'","']'"),"'{'","'['") }}
 {% endmacro %}
 
 {# redshift should use default instead of postgres #}

From 9b2a6bfa62cc23b2b271c8cf4df96714e436cf61 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 25 May 2022 09:02:07 -0400
Subject: [PATCH 10/18] change name of create_array macro to array_construct

---
 ...ata_create_array.csv => data_array_construct.csv} |  0
 integration_tests/models/cross_db_utils/schema.yml   |  2 +-
 .../models/cross_db_utils/test_array_append.sql      | 12 ++++++------
 ...est_create_array.sql => test_array_construct.sql} |  8 ++++----
 macros/cross_db_utils/array_append.sql               |  4 ++--
 .../{create_array.sql => array_construct.sql}        | 12 ++++++------
 6 files changed, 19 insertions(+), 19 deletions(-)
 rename integration_tests/data/cross_db/{data_create_array.csv => data_array_construct.csv} (100%)
 rename integration_tests/models/cross_db_utils/{test_create_array.sql => test_array_construct.sql} (59%)
 rename macros/cross_db_utils/{create_array.sql => array_construct.sql} (51%)

diff --git a/integration_tests/data/cross_db/data_create_array.csv b/integration_tests/data/cross_db/data_array_construct.csv
similarity index 100%
rename from integration_tests/data/cross_db/data_create_array.csv
rename to integration_tests/data/cross_db/data_array_construct.csv
diff --git a/integration_tests/models/cross_db_utils/schema.yml b/integration_tests/models/cross_db_utils/schema.yml
index 98382339..f03b5c0f 100644
--- a/integration_tests/models/cross_db_utils/schema.yml
+++ b/integration_tests/models/cross_db_utils/schema.yml
@@ -23,7 +23,7 @@ models:
           actual: actual
           expected: expected
 
-  - name: test_create_array
+  - name: test_array_construct
     tests:
       - assert_equal:
           actual: actual
diff --git a/integration_tests/models/cross_db_utils/test_array_append.sql b/integration_tests/models/cross_db_utils/test_array_append.sql
index dd13fa46..fa3f0fae 100644
--- a/integration_tests/models/cross_db_utils/test_array_append.sql
+++ b/integration_tests/models/cross_db_utils/test_array_append.sql
@@ -3,19 +3,19 @@ with data as (
     select 
         data_array_append.element,
         data_array_append.result_as_string,
-        data_create_array.num_input_1,
-        data_create_array.num_input_2,
-        data_create_array.num_input_3
+        data_array_construct.num_input_1,
+        data_array_construct.num_input_2,
+        data_array_construct.num_input_3
     from {{ ref('data_array_append') }} as data_array_append
-    left join {{ ref('data_create_array') }} as data_create_array
-    on data_array_append.array_as_string = data_create_array.result_as_string
+    left join {{ ref('data_array_construct') }} as data_array_construct
+    on data_array_append.array_as_string = data_array_construct.result_as_string
 
 ),
 
 appended_array as (
 
     select
-        {{ dbt_utils.array_append(dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as array_actual,
+        {{ dbt_utils.array_append(dbt_utils.array_construct(['num_input_1', 'num_input_2', 'num_input_3']), 'element') }} as array_actual,
         result_as_string as expected
     from data
 
diff --git a/integration_tests/models/cross_db_utils/test_create_array.sql b/integration_tests/models/cross_db_utils/test_array_construct.sql
similarity index 59%
rename from integration_tests/models/cross_db_utils/test_create_array.sql
rename to integration_tests/models/cross_db_utils/test_array_construct.sql
index bc5b222b..137562ad 100644
--- a/integration_tests/models/cross_db_utils/test_create_array.sql
+++ b/integration_tests/models/cross_db_utils/test_array_construct.sql
@@ -1,12 +1,12 @@
 with data as (
 
-    select * from {{ ref('data_create_array') }}
+    select * from {{ ref('data_array_construct') }}
 
 ),
 
-create_array as (
+array_construct as (
     select
-        {{ dbt_utils.create_array(['num_input_1', 'num_input_2', 'num_input_3']) }} as array_actual,
+        {{ dbt_utils.array_construct(['num_input_1', 'num_input_2', 'num_input_3']) }} as array_actual,
         result_as_string as expected
 
     from data
@@ -18,4 +18,4 @@ select
     array_actual,
     {{ dbt_utils.cast_array_to_string('array_actual') }} as actual,
     expected
-from create_array
\ No newline at end of file
+from array_construct
\ No newline at end of file
diff --git a/macros/cross_db_utils/array_append.sql b/macros/cross_db_utils/array_append.sql
index 77b84e2c..7f0ff056 100644
--- a/macros/cross_db_utils/array_append.sql
+++ b/macros/cross_db_utils/array_append.sql
@@ -8,9 +8,9 @@
 {%- endmacro %}
 
 {% macro bigquery__array_append(array, new_element) -%}
-    array_concat({{ array }}, {{ dbt_utils.create_array([new_element]) }})
+    array_concat({{ array }}, {{ dbt_utils.array_construct([new_element]) }})
 {%- endmacro %}
 
 {% macro redshift__array_append(array, new_element) -%}
-    array_concat({{ array }}, {{ dbt_utils.create_array([new_element]) }})
+    array_concat({{ array }}, {{ dbt_utils.array_construct([new_element]) }})
 {%- endmacro %}
\ No newline at end of file
diff --git a/macros/cross_db_utils/create_array.sql b/macros/cross_db_utils/array_construct.sql
similarity index 51%
rename from macros/cross_db_utils/create_array.sql
rename to macros/cross_db_utils/array_construct.sql
index 0afde91a..7e896b6b 100644
--- a/macros/cross_db_utils/create_array.sql
+++ b/macros/cross_db_utils/array_construct.sql
@@ -1,20 +1,20 @@
-{% macro create_array(inputs=[]) -%}
-  {{ return(adapter.dispatch('array', 'dbt_utils')(inputs)) }}
+{% macro array_construct(inputs=[]) -%}
+  {{ return(adapter.dispatch('array_construct', 'dbt_utils')(inputs)) }}
 {%- endmacro %}
 
 {# all inputs must be the same data type to match postgres functionality #}
-{% macro default__array(inputs) -%}
+{% macro default__array_construct(inputs) -%}
     array[ {{ inputs|join(' , ') }} ]
 {%- endmacro %}
 
-{% macro snowflake__array(inputs) -%}
+{% macro snowflake__array_construct(inputs) -%}
     array_construct( {{ inputs|join(' , ') }} )
 {%- endmacro %}
 
-{% macro redshift__array(inputs) -%}
+{% macro redshift__array_construct(inputs) -%}
     array( {{ inputs|join(' , ') }} )
 {%- endmacro %}
 
-{% macro bigquery__array(inputs) -%}
+{% macro bigquery__array_construct(inputs) -%}
     [ {{ inputs|join(' , ') }} ]
 {%- endmacro %}
\ No newline at end of file

From 0a7fb48796ba2e06bc7ff9972828fea297e5d24a Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Wed, 25 May 2022 09:25:48 -0400
Subject: [PATCH 11/18] add array_concat macro and integration tests

---
 .../data/cross_db/data_array_concat.csv       |  2 ++
 .../data/cross_db/data_array_construct.csv    |  3 +-
 .../models/cross_db_utils/schema.yml          | 18 ++++++----
 .../cross_db_utils/test_array_append.sql      |  1 -
 .../cross_db_utils/test_array_concat.sql      | 36 +++++++++++++++++++
 macros/cross_db_utils/array_append.sql        |  4 +--
 macros/cross_db_utils/array_concat.sql        | 15 ++++++++
 .../cross_db_utils/cast_array_to_string.sql   |  1 +
 8 files changed, 70 insertions(+), 10 deletions(-)
 create mode 100644 integration_tests/data/cross_db/data_array_concat.csv
 create mode 100644 integration_tests/models/cross_db_utils/test_array_concat.sql
 create mode 100644 macros/cross_db_utils/array_concat.sql

diff --git a/integration_tests/data/cross_db/data_array_concat.csv b/integration_tests/data/cross_db/data_array_concat.csv
new file mode 100644
index 00000000..0eda79cc
--- /dev/null
+++ b/integration_tests/data/cross_db/data_array_concat.csv
@@ -0,0 +1,2 @@
+array_1_as_string,array_2_as_string,result_as_string
+"[1,2,3]","[4,5,6]","[1,2,3,4,5,6]"
\ No newline at end of file
diff --git a/integration_tests/data/cross_db/data_array_construct.csv b/integration_tests/data/cross_db/data_array_construct.csv
index be497c39..fe76c47b 100644
--- a/integration_tests/data/cross_db/data_array_construct.csv
+++ b/integration_tests/data/cross_db/data_array_construct.csv
@@ -1,2 +1,3 @@
 num_input_1,num_input_2,num_input_3,result_as_string
-1,2,3,"[1,2,3]"
\ No newline at end of file
+1,2,3,"[1,2,3]"
+4,5,6,"[4,5,6]"
\ No newline at end of file
diff --git a/integration_tests/models/cross_db_utils/schema.yml b/integration_tests/models/cross_db_utils/schema.yml
index f03b5c0f..c33b0b5e 100644
--- a/integration_tests/models/cross_db_utils/schema.yml
+++ b/integration_tests/models/cross_db_utils/schema.yml
@@ -11,13 +11,8 @@ models:
       - assert_equal:
           actual: actual
           expected: expected
-          
-  - name: test_bool_or
-    tests:
-      - dbt_utils.equality:
-          compare_model: ref('data_bool_or_expected')
 
-  - name: test_concat
+  - name: test_array_concat
     tests:
       - assert_equal:
           actual: actual
@@ -28,6 +23,17 @@ models:
       - assert_equal:
           actual: actual
           expected: expected
+          
+  - name: test_bool_or
+    tests:
+      - dbt_utils.equality:
+          compare_model: ref('data_bool_or_expected')
+
+  - name: test_concat
+    tests:
+      - assert_equal:
+          actual: actual
+          expected: expected
         
   - name: test_current_timestamp
     tests:
diff --git a/integration_tests/models/cross_db_utils/test_array_append.sql b/integration_tests/models/cross_db_utils/test_array_append.sql
index fa3f0fae..12193a62 100644
--- a/integration_tests/models/cross_db_utils/test_array_append.sql
+++ b/integration_tests/models/cross_db_utils/test_array_append.sql
@@ -21,7 +21,6 @@ appended_array as (
 
 )
 
--- when casting as array to string, postgres uses {} (ex: {1,2,3}) while other dbs use [] (ex: [1,2,3])
 -- we need to cast the arrays to strings in order to compare them to the output in our seed file  
 select
     array_actual,
diff --git a/integration_tests/models/cross_db_utils/test_array_concat.sql b/integration_tests/models/cross_db_utils/test_array_concat.sql
new file mode 100644
index 00000000..907a9dff
--- /dev/null
+++ b/integration_tests/models/cross_db_utils/test_array_concat.sql
@@ -0,0 +1,36 @@
+with data as (
+
+    select 
+        data_array_concat.result_as_string,
+        array_1.num_input_1 as array_1_num_input_1,
+        array_1.num_input_2 as array_1_num_input_2,
+        array_1.num_input_3 as array_1_num_input_3,
+        array_2.num_input_1 as array_2_num_input_1,
+        array_2.num_input_2 as array_2_num_input_2,
+        array_2.num_input_3 as array_2_num_input_3
+    from {{ ref('data_array_concat') }} as data_array_concat
+    left join {{ ref('data_array_construct') }} as array_1
+    on data_array_concat.array_1_as_string = array_1.result_as_string
+    left join {{ ref('data_array_construct') }} as array_2
+    on data_array_concat.array_2_as_string = array_2.result_as_string
+
+),
+
+concat_array as (
+
+    select
+        {{ dbt_utils.array_concat(
+            dbt_utils.array_construct(['array_1_num_input_1', 'array_1_num_input_2', 'array_1_num_input_3']), 
+            dbt_utils.array_construct(['array_2_num_input_1', 'array_2_num_input_2', 'array_2_num_input_3'])
+        ) }} as array_actual,
+        result_as_string as expected
+    from data
+
+)
+
+-- we need to cast the arrays to strings in order to compare them to the output in our seed file  
+select
+    array_actual,
+    {{ dbt_utils.cast_array_to_string('array_actual') }} as actual,
+    expected
+from concat_array
\ No newline at end of file
diff --git a/macros/cross_db_utils/array_append.sql b/macros/cross_db_utils/array_append.sql
index 7f0ff056..04791088 100644
--- a/macros/cross_db_utils/array_append.sql
+++ b/macros/cross_db_utils/array_append.sql
@@ -8,9 +8,9 @@
 {%- endmacro %}
 
 {% macro bigquery__array_append(array, new_element) -%}
-    array_concat({{ array }}, {{ dbt_utils.array_construct([new_element]) }})
+    {{ dbt_utils.array_concat(array, dbt_utils.array_construct([new_element])) }}
 {%- endmacro %}
 
 {% macro redshift__array_append(array, new_element) -%}
-    array_concat({{ array }}, {{ dbt_utils.array_construct([new_element]) }})
+    {{ dbt_utils.array_concat(array, dbt_utils.array_construct([new_element])) }}
 {%- endmacro %}
\ No newline at end of file
diff --git a/macros/cross_db_utils/array_concat.sql b/macros/cross_db_utils/array_concat.sql
new file mode 100644
index 00000000..1b7983c2
--- /dev/null
+++ b/macros/cross_db_utils/array_concat.sql
@@ -0,0 +1,15 @@
+{% macro array_concat(array_1, array_2) -%}
+  {{ return(adapter.dispatch('array_concat', 'dbt_utils')(array_1, array_2)) }}
+{%- endmacro %}
+
+{% macro default__array_concat(array_1, array_2) -%}
+    array_cat({{ array_1 }}, {{ array_2 }})
+{%- endmacro %}
+
+{% macro bigquery__array_concat(array_1, array_2) -%}
+    array_concat({{ array_1 }}, {{ array_2 }})
+{%- endmacro %}
+
+{% macro redshift__array_concat(array_1, array_2) -%}
+    array_concat({{ array_1 }}, {{ array_2 }})
+{%- endmacro %}
\ No newline at end of file
diff --git a/macros/cross_db_utils/cast_array_to_string.sql b/macros/cross_db_utils/cast_array_to_string.sql
index 05226a82..9c7fefef 100644
--- a/macros/cross_db_utils/cast_array_to_string.sql
+++ b/macros/cross_db_utils/cast_array_to_string.sql
@@ -6,6 +6,7 @@
     cast({{ field }} as {{ dbt_utils.type_string() }})
 {% endmacro %}
 
+{# when casting as array to string, postgres uses {} (ex: {1,2,3}) while other dbs use [] (ex: [1,2,3]) #}
 {% macro postgres__cast_array_to_string(field) %}
     {%- set field_as_string -%}cast({{ field }} as {{ dbt_utils.type_string() }}){%- endset -%}
     {{ dbt_utils.replace(dbt_utils.replace(field_as_string,"'}'","']'"),"'{'","'['") }}

From 668a914995029270751883cf9d0a8c93631ccbf1 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Tue, 14 Jun 2022 12:45:22 -0400
Subject: [PATCH 12/18] updated readme and added empty array_contruct to
 intergation tests

---
 README.md                                     | 56 ++++++++++++++++++-
 .../cross_db_utils/test_array_construct.sql   |  6 ++
 .../cross_db_utils/cast_array_to_string.sql   | 24 ++++----
 3 files changed, 71 insertions(+), 15 deletions(-)

diff --git a/README.md b/README.md
index 97660630..3123ad09 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,10 @@ For compatibility details between versions of dbt-core and dbt-utils, [see this
     - [last_day](#last_day-source)
     - [width_bucket](#width_bucket-source)
     - [listagg](#listagg-source)
+    - [array_construct](#array_construct-source)
+    - [array_append](#array_append-source)
+    - [array_concat](#array_concat-source)
+    - [cast_array_to_string](#cast_array_to_string-source)
 
 - [Jinja Helpers](#jinja-helpers)
     - [pretty_time](#pretty_time-source)
@@ -991,7 +995,7 @@ Boolean values are replaced with the strings 'true'|'false'
     | 2017-03-01 | processing | size       | S     |
     | 2017-03-01 | processing | color      | red   |
 
-**Args**:
+**Args:**
 - `relation`: The [Relation](https://docs.getdbt.com/docs/writing-code-in-dbt/class-reference/#relation) to unpivot.
 - `cast_to`: The data type to cast the unpivoted values to, default is varchar
 - `exclude`: A list of columns to exclude from the unpivot operation but keep in the resulting table.
@@ -1055,7 +1059,7 @@ This macro calculates the difference between two dates.
 #### split_part ([source](macros/cross_db_utils/split_part.sql))
 This macro splits a string of text using the supplied delimiter and returns the supplied part number (1-indexed).
 
-**Args**:
+**Args:**
 - `string_text` (required): Text to be split into parts.
 - `delimiter_text` (required): Text representing the delimiter to split by.
 - `part_number` (required): Requested part of the split (1-based). If the value is negative, the parts are counted backward from the end of the string.
@@ -1114,7 +1118,7 @@ When an expression falls outside the range, the function returns:
 #### listagg ([source](macros/cross_db_utils/listagg.sql))
 This macro returns the concatenated input values from a group of rows separated by a specified deliminator.
 
-**Args**:
+**Args:**
 - `measure` (required): The expression (typically a column name) that determines the values to be concatenated. To only include distinct values add keyword DISTINCT to beginning of expression (example: 'DISTINCT column_to_agg').
 - `delimiter_text` (required): Text representing the delimiter to separate concatenated values by.
 - `order_by_clause` (optional): An expression (typically a column name) that determines the order of the concatenated values.
@@ -1127,6 +1131,52 @@ Note: If there are instances of `delimiter_text` within your `measure`, you cann
 {{ dbt_utils.listagg(measure='column_to_agg', delimiter_text="','", order_by_clause="order by order_by_column", limit_num=10) }}
 ```
 
+#### array_construct ([source](macros/cross_db_utils/array_construct.sql))
+This macro returns an array constructed from a set of inputs. 
+
+**Args:**
+- `inputs` (optional): The list of array contents. If not provided, this macro will create an empty array. All inputs must be the *same data type* in order to match Postgres functionality and *not null* to match Bigquery functionality.
+
+**Usage:**
+```
+{{ dbt_utils.array_construct(['column_1', 'column_2', 'column_3']) }}
+```
+
+#### array_append ([source](macros/cross_db_utils/array_append.sql))
+This macro appends an element to the end of an array and returns the appended array.
+
+**Args:**
+- `array` (required): The array to append to. 
+- `new_element` (required): The element to be appended. This element must *match the data type of the existing elements* in the array in order to match Postgres functionality and *not null* to match Bigquery functionality. 
+
+**Usage:**
+```
+{{ dbt_utils.array_append('array_column', 'element_column') }}
+```
+
+#### array_concat ([source](macros/cross_db_utils/array_concat.sql))
+This macro returns the concatenation of two arrays.
+
+**Args:**
+- `array_1` (required): The array to append to. 
+- `array_2` (required): The array to be appended to `array_1`. This array must match the data type of `array_1` in order to match Postgres functionality.
+
+**Usage:**
+```
+{{ dbt_utils.array_concat('array_column_1', 'array_column_2') }}
+```
+
+#### cast_array_to_string ([source](macros/cross_db_utils/cast_array_to_string.sql))
+This macro converts an array to a single string value and returns the resulting string. 
+
+**Args:**
+- `array` (required): The array to convert to a string.
+
+**Usage:**
+```
+{{ dbt_utils.cast_array_to_string('array_column') }}
+```
+
 ---
 ### Jinja Helpers
 #### pretty_time ([source](macros/jinja_helpers/pretty_time.sql))
diff --git a/integration_tests/models/cross_db_utils/test_array_construct.sql b/integration_tests/models/cross_db_utils/test_array_construct.sql
index 137562ad..52dbf4be 100644
--- a/integration_tests/models/cross_db_utils/test_array_construct.sql
+++ b/integration_tests/models/cross_db_utils/test_array_construct.sql
@@ -11,6 +11,12 @@ array_construct as (
 
     from data
 
+    union all
+
+    select
+        {{ dbt_utils.array_construct() }} as array_actual,
+        '[]' as expected
+
 )
 
 -- we need to cast the arrays to strings in order to compare them to the output in our seed file  
diff --git a/macros/cross_db_utils/cast_array_to_string.sql b/macros/cross_db_utils/cast_array_to_string.sql
index 9c7fefef..c88d6ef0 100644
--- a/macros/cross_db_utils/cast_array_to_string.sql
+++ b/macros/cross_db_utils/cast_array_to_string.sql
@@ -1,22 +1,22 @@
-{% macro cast_array_to_string(field) %}
-  {{ adapter.dispatch('cast_array_to_string', 'dbt_utils') (field) }}
+{% macro cast_array_to_string(array) %}
+  {{ adapter.dispatch('cast_array_to_string', 'dbt_utils') (array) }}
 {% endmacro %}
 
-{% macro default__cast_array_to_string(field) %}
-    cast({{ field }} as {{ dbt_utils.type_string() }})
+{% macro default__cast_array_to_string(array) %}
+    cast({{ array }} as {{ dbt_utils.type_string() }})
 {% endmacro %}
 
 {# when casting as array to string, postgres uses {} (ex: {1,2,3}) while other dbs use [] (ex: [1,2,3]) #}
-{% macro postgres__cast_array_to_string(field) %}
-    {%- set field_as_string -%}cast({{ field }} as {{ dbt_utils.type_string() }}){%- endset -%}
-    {{ dbt_utils.replace(dbt_utils.replace(field_as_string,"'}'","']'"),"'{'","'['") }}
+{% macro postgres__cast_array_to_string(array) %}
+    {%- set array_as_string -%}cast({{ array }} as {{ dbt_utils.type_string() }}){%- endset -%}
+    {{ dbt_utils.replace(dbt_utils.replace(array_as_string,"'}'","']'"),"'{'","'['") }}
 {% endmacro %}
 
 {# redshift should use default instead of postgres #}
-{% macro redshift__cast_array_to_string(field) %}
-    cast({{ field }} as {{ dbt_utils.type_string() }})
+{% macro redshift__cast_array_to_string(array) %}
+    cast({{ array }} as {{ dbt_utils.type_string() }})
 {% endmacro %}
 
-{% macro bigquery__cast_array_to_string(field) %}
-    '['||(select string_agg(cast(element as string), ',') from unnest({{ field }}) element)||']'
-{% endmacro %}
+{% macro bigquery__cast_array_to_string(array) %}
+    '['||(select string_agg(cast(element as string), ',') from unnest({{ array }}) element)||']'
+{% endmacro %}
\ No newline at end of file

From 9c3d02a8554fb8a86fc873b0f4001035496f7a57 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Tue, 14 Jun 2022 13:01:09 -0400
Subject: [PATCH 13/18] added default array data_type for postgres func

---
 README.md                                 | 2 ++
 macros/cross_db_utils/array_construct.sql | 6 +++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 3123ad09..9221ebe1 100644
--- a/README.md
+++ b/README.md
@@ -1136,10 +1136,12 @@ This macro returns an array constructed from a set of inputs.
 
 **Args:**
 - `inputs` (optional): The list of array contents. If not provided, this macro will create an empty array. All inputs must be the *same data type* in order to match Postgres functionality and *not null* to match Bigquery functionality.
+- `data_type` (optional): Specifies the data type of the constructed array. This is only relevant when creating an empty array (will otherwise use the data type of the inputs). If `inputs` are `data_type` are both not provided, this macro will create an empty array of type varchar.
 
 **Usage:**
 ```
 {{ dbt_utils.array_construct(['column_1', 'column_2', 'column_3']) }}
+{{ dbt_utils.array_construct([],'integer') }}
 ```
 
 #### array_append ([source](macros/cross_db_utils/array_append.sql))
diff --git a/macros/cross_db_utils/array_construct.sql b/macros/cross_db_utils/array_construct.sql
index 7e896b6b..b39873c2 100644
--- a/macros/cross_db_utils/array_construct.sql
+++ b/macros/cross_db_utils/array_construct.sql
@@ -1,10 +1,14 @@
-{% macro array_construct(inputs=[]) -%}
+{% macro array_construct(inputs = [], data_type = 'varchar') -%}
   {{ return(adapter.dispatch('array_construct', 'dbt_utils')(inputs)) }}
 {%- endmacro %}
 
 {# all inputs must be the same data type to match postgres functionality #}
 {% macro default__array_construct(inputs) -%}
+    {% if input|length > 0 %}
     array[ {{ inputs|join(' , ') }} ]
+    {% else %}
+    array[]::{{data_type}}[]
+    {% endif %}
 {%- endmacro %}
 
 {% macro snowflake__array_construct(inputs) -%}

From 014c524d75f6e026cda4fd42a942864ab5037ed4 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Tue, 14 Jun 2022 13:04:08 -0400
Subject: [PATCH 14/18] added data_type arg

---
 macros/cross_db_utils/array_construct.sql | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/macros/cross_db_utils/array_construct.sql b/macros/cross_db_utils/array_construct.sql
index b39873c2..aa58ac4d 100644
--- a/macros/cross_db_utils/array_construct.sql
+++ b/macros/cross_db_utils/array_construct.sql
@@ -3,7 +3,7 @@
 {%- endmacro %}
 
 {# all inputs must be the same data type to match postgres functionality #}
-{% macro default__array_construct(inputs) -%}
+{% macro default__array_construct(inputs, data_type) -%}
     {% if input|length > 0 %}
     array[ {{ inputs|join(' , ') }} ]
     {% else %}
@@ -11,14 +11,14 @@
     {% endif %}
 {%- endmacro %}
 
-{% macro snowflake__array_construct(inputs) -%}
+{% macro snowflake__array_construct(inputs, data_type) -%}
     array_construct( {{ inputs|join(' , ') }} )
 {%- endmacro %}
 
-{% macro redshift__array_construct(inputs) -%}
+{% macro redshift__array_construct(inputs, data_type) -%}
     array( {{ inputs|join(' , ') }} )
 {%- endmacro %}
 
-{% macro bigquery__array_construct(inputs) -%}
+{% macro bigquery__array_construct(inputs, data_type) -%}
     [ {{ inputs|join(' , ') }} ]
 {%- endmacro %}
\ No newline at end of file

From 2bd3df1b771cd059bf78b0a29d52b8c6fa5d41ba Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Tue, 14 Jun 2022 14:38:37 -0400
Subject: [PATCH 15/18] postgres fix

---
 macros/cross_db_utils/array_construct.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/macros/cross_db_utils/array_construct.sql b/macros/cross_db_utils/array_construct.sql
index aa58ac4d..809f4e4a 100644
--- a/macros/cross_db_utils/array_construct.sql
+++ b/macros/cross_db_utils/array_construct.sql
@@ -1,5 +1,5 @@
 {% macro array_construct(inputs = [], data_type = 'varchar') -%}
-  {{ return(adapter.dispatch('array_construct', 'dbt_utils')(inputs)) }}
+  {{ return(adapter.dispatch('array_construct', 'dbt_utils')(inputs, data_type)) }}
 {%- endmacro %}
 
 {# all inputs must be the same data type to match postgres functionality #}

From d76654d17decedb86a42bf20f82ecf9e0e77112b Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Tue, 14 Jun 2022 14:52:53 -0400
Subject: [PATCH 16/18] fix variable name

---
 macros/cross_db_utils/array_construct.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/macros/cross_db_utils/array_construct.sql b/macros/cross_db_utils/array_construct.sql
index 809f4e4a..d7e801f9 100644
--- a/macros/cross_db_utils/array_construct.sql
+++ b/macros/cross_db_utils/array_construct.sql
@@ -4,7 +4,7 @@
 
 {# all inputs must be the same data type to match postgres functionality #}
 {% macro default__array_construct(inputs, data_type) -%}
-    {% if input|length > 0 %}
+    {% if inputs|length > 0 %}
     array[ {{ inputs|join(' , ') }} ]
     {% else %}
     array[]::{{data_type}}[]

From b6cdf9ec74867f1644061fded013d9eff917b1c1 Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Tue, 14 Jun 2022 14:59:42 -0400
Subject: [PATCH 17/18] changed default array data type to integer

---
 README.md                                 | 2 +-
 macros/cross_db_utils/array_construct.sql | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 9221ebe1..2656da09 100644
--- a/README.md
+++ b/README.md
@@ -1136,7 +1136,7 @@ This macro returns an array constructed from a set of inputs.
 
 **Args:**
 - `inputs` (optional): The list of array contents. If not provided, this macro will create an empty array. All inputs must be the *same data type* in order to match Postgres functionality and *not null* to match Bigquery functionality.
-- `data_type` (optional): Specifies the data type of the constructed array. This is only relevant when creating an empty array (will otherwise use the data type of the inputs). If `inputs` are `data_type` are both not provided, this macro will create an empty array of type varchar.
+- `data_type` (optional): Specifies the data type of the constructed array. This is only relevant when creating an empty array (will otherwise use the data type of the inputs). If `inputs` are `data_type` are both not provided, this macro will create an empty array of type integer.
 
 **Usage:**
 ```
diff --git a/macros/cross_db_utils/array_construct.sql b/macros/cross_db_utils/array_construct.sql
index d7e801f9..0c323ab4 100644
--- a/macros/cross_db_utils/array_construct.sql
+++ b/macros/cross_db_utils/array_construct.sql
@@ -1,4 +1,4 @@
-{% macro array_construct(inputs = [], data_type = 'varchar') -%}
+{% macro array_construct(inputs = [], data_type = 'integer') -%}
   {{ return(adapter.dispatch('array_construct', 'dbt_utils')(inputs, data_type)) }}
 {%- endmacro %}
 

From 0085420684142a19b0a02518b2c814a81f1a5c1c Mon Sep 17 00:00:00 2001
From: Grace Goheen <graciegoheen@gmail.com>
Date: Tue, 14 Jun 2022 15:13:20 -0400
Subject: [PATCH 18/18] updated default data_type to use
 api.Column.translate_type

---
 macros/cross_db_utils/array_construct.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/macros/cross_db_utils/array_construct.sql b/macros/cross_db_utils/array_construct.sql
index 0c323ab4..63c6fe3b 100644
--- a/macros/cross_db_utils/array_construct.sql
+++ b/macros/cross_db_utils/array_construct.sql
@@ -1,4 +1,4 @@
-{% macro array_construct(inputs = [], data_type = 'integer') -%}
+{% macro array_construct(inputs = [], data_type = api.Column.translate_type('integer')) -%}
   {{ return(adapter.dispatch('array_construct', 'dbt_utils')(inputs, data_type)) }}
 {%- endmacro %}