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dbt-labs · Nov 10, 2024 · 08159b2 · 08159b2
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diff --git a/...ricflow/snapshots/test_cte_rewriting_sub_query_reducer.py/str/test_reduce_cte__result.txt b/...ricflow/snapshots/test_cte_rewriting_sub_query_reducer.py/str/test_reduce_cte__result.txt
@@ -0,0 +1,81 @@
+test_name: test_reduce_cte
+test_filename: test_cte_rewriting_sub_query_reducer.py
+docstring:
+  Tests that the SELECT statements in CTEs are reduced.
+---
+optimizer:
+  SqlRewritingSubQueryReducer
+
+sql_before_optimizing:
+  -- Top-level SELECT
+  WITH cte_source_0 AS (
+    -- CTE source 0
+    SELECT
+      test_table_alias.col_0 AS cte_source_0__col_0
+      , test_table_alias.col_1 AS cte_source_0__col_1
+    FROM (
+      -- CTE source 0 sub-query
+      SELECT
+        test_table_alias.col_0 AS cte_source_0_subquery__col_0
+        , test_table_alias.col_0 AS cte_source_0_subquery__col_1
+      FROM test_schema.test_table test_table_alias
+    ) cte_source_0_subquery
+  )
+
+  , cte_source_1 AS (
+    -- CTE source 1
+    SELECT
+      test_table_alias.col_0 AS cte_source_1__col_0
+      , test_table_alias.col_1 AS cte_source_1__col_1
+    FROM (
+      -- CTE source 1 sub-query
+      SELECT
+        cte_source_0_alias.cte_source_0__col_0 AS cte_source_1_subquery__col_0
+        , cte_source_0_alias.cte_source_0__col_0 AS cte_source_1_subquery__col_1
+      FROM cte_source_0 cte_source_0_alias
+    ) cte_source_1_subquery
+  )
+
+  SELECT
+    cte_source_0_alias.cte_source_0__col_0 AS top_level__col_0
+    , right_source_alias.right_source__col_1 AS top_level__col_1
+  FROM cte_source_0 cte_source_0_alias
+  INNER JOIN
+    cte_source_1 right_source_alias
+  ON
+    cte_source_0_alias.cte_source_0__col_1 = right_source_alias.right_source__col_1
+  GROUP BY
+    cte_source_0_alias.cte_source_0__col_0
+    , right_source_alias.right_source__col_1
+
+sql_after_optimizing:
+  -- Top-level SELECT
+  WITH cte_source_0 AS (
+    -- CTE source 0 sub-query
+    -- CTE source 0
+    SELECT
+      test_table_alias.col_0 AS cte_source_0__col_0
+      , test_table_alias.col_1 AS cte_source_0__col_1
+    FROM test_schema.test_table test_table_alias
+  )
+
+  , cte_source_1 AS (
+    -- CTE source 1 sub-query
+    -- CTE source 1
+    SELECT
+      test_table_alias.col_0 AS cte_source_1__col_0
+      , test_table_alias.col_1 AS cte_source_1__col_1
+    FROM cte_source_0 cte_source_0_alias
+  )
+
+  SELECT
+    cte_source_0_alias.cte_source_0__col_0 AS top_level__col_0
+    , right_source_alias.right_source__col_1 AS top_level__col_1
+  FROM cte_source_0 cte_source_0_alias
+  INNER JOIN
+    cte_source_1 right_source_alias
+  ON
+    cte_source_0_alias.cte_source_0__col_1 = right_source_alias.right_source__col_1
+  GROUP BY
+    cte_source_0_alias.cte_source_0__col_0
+    , right_source_alias.right_source__col_1
diff --git a/...g_sub_query_reducer.py/str/test_reduce_cte_with_use_column_alias_in_group_bys__result.txt b/...g_sub_query_reducer.py/str/test_reduce_cte_with_use_column_alias_in_group_bys__result.txt
@@ -0,0 +1,81 @@
+test_name: test_reduce_cte_with_use_column_alias_in_group_bys
+test_filename: test_cte_rewriting_sub_query_reducer.py
+docstring:
+  This tests reducing with the `use_column_alias_in_group_bys` flag set.
+---
+optimizer:
+  SqlRewritingSubQueryReducer
+
+sql_before_optimizing:
+  -- Top-level SELECT
+  WITH cte_source_0 AS (
+    -- CTE source 0
+    SELECT
+      test_table_alias.col_0 AS cte_source_0__col_0
+      , test_table_alias.col_1 AS cte_source_0__col_1
+    FROM (
+      -- CTE source 0 sub-query
+      SELECT
+        test_table_alias.col_0 AS cte_source_0_subquery__col_0
+        , test_table_alias.col_0 AS cte_source_0_subquery__col_1
+      FROM test_schema.test_table test_table_alias
+    ) cte_source_0_subquery
+  )
+
+  , cte_source_1 AS (
+    -- CTE source 1
+    SELECT
+      test_table_alias.col_0 AS cte_source_1__col_0
+      , test_table_alias.col_1 AS cte_source_1__col_1
+    FROM (
+      -- CTE source 1 sub-query
+      SELECT
+        cte_source_0_alias.cte_source_0__col_0 AS cte_source_1_subquery__col_0
+        , cte_source_0_alias.cte_source_0__col_0 AS cte_source_1_subquery__col_1
+      FROM cte_source_0 cte_source_0_alias
+    ) cte_source_1_subquery
+  )
+
+  SELECT
+    cte_source_0_alias.cte_source_0__col_0 AS top_level__col_0
+    , right_source_alias.right_source__col_1 AS top_level__col_1
+  FROM cte_source_0 cte_source_0_alias
+  INNER JOIN
+    cte_source_1 right_source_alias
+  ON
+    cte_source_0_alias.cte_source_0__col_1 = right_source_alias.right_source__col_1
+  GROUP BY
+    cte_source_0_alias.cte_source_0__col_0
+    , right_source_alias.right_source__col_1
+
+sql_after_optimizing:
+  -- Top-level SELECT
+  WITH cte_source_0 AS (
+    -- CTE source 0 sub-query
+    -- CTE source 0
+    SELECT
+      test_table_alias.col_0 AS cte_source_0__col_0
+      , test_table_alias.col_1 AS cte_source_0__col_1
+    FROM test_schema.test_table test_table_alias
+  )
+
+  , cte_source_1 AS (
+    -- CTE source 1 sub-query
+    -- CTE source 1
+    SELECT
+      test_table_alias.col_0 AS cte_source_1__col_0
+      , test_table_alias.col_1 AS cte_source_1__col_1
+    FROM cte_source_0 cte_source_0_alias
+  )
+
+  SELECT
+    cte_source_0_alias.cte_source_0__col_0 AS top_level__col_0
+    , right_source_alias.right_source__col_1 AS top_level__col_1
+  FROM cte_source_0 cte_source_0_alias
+  INNER JOIN
+    cte_source_1 right_source_alias
+  ON
+    cte_source_0_alias.cte_source_0__col_1 = right_source_alias.right_source__col_1
+  GROUP BY
+    top_level__col_0
+    , top_level__col_1
diff --git a/...riting_sub_query_reducer.py/SqlQueryPlan/test_reducing_join_statement__after_reducing.sql b/...riting_sub_query_reducer.py/SqlQueryPlan/test_reducing_join_statement__after_reducing.sql
@@ -1,7 +1,7 @@
 test_name: test_reducing_join_statement
 test_filename: test_rewriting_sub_query_reducer.py
 docstring:
-  Tests a case where a join query should not reduced an aggregate.
+  Tests a case where a join query should not reduce an aggregate.
 ---
 -- query
 SELECT

diff --git a/...iting_sub_query_reducer.py/SqlQueryPlan/test_reducing_join_statement__before_reducing.sql b/...iting_sub_query_reducer.py/SqlQueryPlan/test_reducing_join_statement__before_reducing.sql
@@ -1,7 +1,7 @@
 test_name: test_reducing_join_statement
 test_filename: test_rewriting_sub_query_reducer.py
 docstring:
-  Tests a case where a join query should not reduced an aggregate.
+  Tests a case where a join query should not reduce an aggregate.
 ---
 -- query
 SELECT