3 files changed, 37 insertions, 0 deletions
diff --git a/tests/fixtures/optimizer/merge_subqueries.sql b/tests/fixtures/optimizer/merge_subqueries.sql
index 35aed3b..e13d3b3 100644
--- a/tests/fixtures/optimizer/merge_subqueries.sql
+++ b/tests/fixtures/optimizer/merge_subqueries.sql
@@ -97,3 +97,11 @@ WITH x AS (SELECT x.a AS a, x.b AS b FROM x AS x) SELECT x.a AS a, y.b AS b FROM
 -- Nested CTE
 SELECT * FROM (WITH x AS (SELECT a, b FROM x) SELECT a, b FROM x);
 SELECT x.a AS a, x.b AS b FROM x AS x;
+
+-- Inner select is an expression
+SELECT a FROM (SELECT a FROM (SELECT COALESCE(a) AS a FROM x LEFT JOIN y ON x.a = y.b) AS x) AS x;
+SELECT COALESCE(x.a) AS a FROM x AS x LEFT JOIN y AS y ON x.a = y.b;
+
+-- CTE select is an expression
+WITH x AS (SELECT COALESCE(a) AS a FROM x LEFT JOIN y ON x.a = y.b) SELECT a FROM (SELECT a FROM x AS x) AS x;
+SELECT COALESCE(x.a) AS a FROM x AS x LEFT JOIN y AS y ON x.a = y.b;
diff --git a/tests/fixtures/optimizer/optimizer.sql b/tests/fixtures/optimizer/optimizer.sql
index 0bb742b..eb6761a 100644
--- a/tests/fixtures/optimizer/optimizer.sql
+++ b/tests/fixtures/optimizer/optimizer.sql
@@ -137,3 +137,20 @@ SELECT AGGREGATE(ARRAY(x.a, x.b), 0, (x, acc) -> x + acc + a) AS sum_agg FROM x;
 SELECT
   AGGREGATE(ARRAY("x"."a", "x"."b"), 0, ("x", "acc") -> "x" + "acc" + "x"."a") AS "sum_agg"
 FROM "x" AS "x";
+
+SELECT cola, colb FROM (VALUES (1, 'test'), (2, 'test2')) AS tab(cola, colb);
+SELECT
+  "tab"."cola" AS "cola",
+  "tab"."colb" AS "colb"
+FROM (VALUES
+  (1, 'test'),
+  (2, 'test2')) AS "tab"("cola", "colb");
+
+# dialect: spark
+SELECT cola, colb FROM (VALUES (1, 'test'), (2, 'test2')) AS tab(cola, colb);
+SELECT
+  `tab`.`cola` AS `cola`,
+  `tab`.`colb` AS `colb`
+FROM VALUES
+  (1, 'test'),
+  (2, 'test2') AS `tab`(`cola`, `colb`);
diff --git a/tests/fixtures/optimizer/pushdown_projections.sql b/tests/fixtures/optimizer/pushdown_projections.sql
index 9deceb6..b03ffab 100644
--- a/tests/fixtures/optimizer/pushdown_projections.sql
+++ b/tests/fixtures/optimizer/pushdown_projections.sql
@@ -39,3 +39,15 @@ SELECT "_q_0".b AS b FROM (SELECT SUM(x.b) AS b FROM x AS x GROUP BY x.a) AS "_q
 
 SELECT b FROM (SELECT a, SUM(b) AS b FROM x ORDER BY a);
 SELECT "_q_0".b AS b FROM (SELECT x.a AS a, SUM(x.b) AS b FROM x AS x ORDER BY a) AS "_q_0";
+
+SELECT x FROM (VALUES(1, 2)) AS q(x, y);
+SELECT q.x AS x FROM (VALUES (1, 2)) AS q(x, y);
+
+SELECT x FROM UNNEST([1, 2]) AS q(x, y);
+SELECT q.x AS x FROM UNNEST(ARRAY(1, 2)) AS q(x, y);
+
+WITH t1 AS (SELECT cola, colb FROM UNNEST([STRUCT(1 AS cola, 'test' AS colb)]) AS "q"("cola", "colb")) SELECT cola FROM t1;
+WITH t1 AS (SELECT q.cola AS cola FROM UNNEST(ARRAY(STRUCT(1 AS cola, 'test' AS colb))) AS "q"("cola", "colb")) SELECT t1.cola AS cola FROM t1;
+
+SELECT x FROM VALUES(1, 2) AS q(x, y);
+SELECT q.x AS x FROM (VALUES (1, 2)) AS q(x, y);