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feat: implement listagg macro #290

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merged 3 commits into from
Jun 25, 2024
Merged

feat: implement listagg macro #290

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fd248fb
feat: implement listagg macro
igorvoltaic Jun 6, 2024
e05812e
fix arrayStringConcat args
igorvoltaic Jun 9, 2024
08a3860
fix array sorting
igorvoltaic Jun 9, 2024
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14 changes: 9 additions & 5 deletions dbt/include/clickhouse/macros/utils/utils.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -63,11 +63,15 @@
{% endmacro %}


{% macro clickhouse__listagg(measure, delimiter_text, order_by_clause, limit_num) %}
{{ exceptions.raise_compiler_error(
'ClickHouse does not support the listagg function. See the groupArray function instead')
}}
{% endmacro %}
{% macro clickhouse__listagg(measure, delimiter_text, order_by_clause, limit_num) -%}
{% set arr = "array_agg({})".format(measure) %}
{% set arr = "arraySort({}, {})".format(arr, order_by_clause) if order_by_clause else arr %}
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{% if limit_num -%}
arrayStringConcat(arraySlice({{ arr }}, 1, {{ limit_num }}), {{delimiter_text}})
{% else -%}
arrayStringConcat({{ arr }}, {{delimiter_text}})
{%- endif %}
{%- endmacro %}


{% macro clickhouse__array_construct(inputs, data_type) -%}
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8 changes: 2 additions & 6 deletions tests/integration/adapter/utils/test_listagg.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
import pytest
from dbt.exceptions import CompilationError
from dbt.tests.adapter.utils.fixture_listagg import (
models__test_listagg_yml,
seeds__data_listagg_csv,
Expand Down Expand Up @@ -29,8 +28,5 @@ def models(self):
"test_listagg.sql": models__test_listagg_sql,
}

def test_listagg_exception(self, project):
try:
run_dbt(["build"], False)
except CompilationError as e:
assert 'does not support' in e.msg
def test_listagg_run(self, project):
run_dbt(["build"], False)