1 files changed, 41 insertions, 0 deletions
diff --git a/tests/fixtures/optimizer/pushdown_projections.sql b/tests/fixtures/optimizer/pushdown_projections.sql
new file mode 100644
index 0000000..9deceb6
--- /dev/null
+++ b/tests/fixtures/optimizer/pushdown_projections.sql
@@ -0,0 +1,41 @@
+SELECT a FROM (SELECT * FROM x);
+SELECT "_q_0".a AS a FROM (SELECT x.a AS a FROM x AS x) AS "_q_0";
+
+SELECT 1 FROM (SELECT * FROM x) WHERE b = 2;
+SELECT 1 AS "_col_0" FROM (SELECT x.b AS b FROM x AS x) AS "_q_0" WHERE "_q_0".b = 2;
+
+SELECT (SELECT c FROM y WHERE q.b = y.b) FROM (SELECT * FROM x) AS q;
+SELECT (SELECT y.c AS c FROM y AS y WHERE q.b = y.b) AS "_col_0" FROM (SELECT x.b AS b FROM x AS x) AS q;
+
+SELECT a FROM x JOIN (SELECT b, c FROM y) AS z ON x.b = z.b;
+SELECT x.a AS a FROM x AS x JOIN (SELECT y.b AS b FROM y AS y) AS z ON x.b = z.b;
+
+SELECT x1.a FROM (SELECT * FROM x) AS x1, (SELECT * FROM x) AS x2;
+SELECT x1.a AS a FROM (SELECT x.a AS a FROM x AS x) AS x1, (SELECT 1 AS "_" FROM x AS x) AS x2;
+
+SELECT x1.a FROM (SELECT * FROM x) AS x1, (SELECT * FROM x) AS x2;
+SELECT x1.a AS a FROM (SELECT x.a AS a FROM x AS x) AS x1, (SELECT 1 AS "_" FROM x AS x) AS x2;
+
+SELECT a FROM (SELECT DISTINCT a, b FROM x);
+SELECT "_q_0".a AS a FROM (SELECT DISTINCT x.a AS a, x.b AS b FROM x AS x) AS "_q_0";
+
+SELECT a FROM (SELECT a, b FROM x UNION ALL SELECT a, b FROM x);
+SELECT "_q_0".a AS a FROM (SELECT x.a AS a FROM x AS x UNION ALL SELECT x.a AS a FROM x AS x) AS "_q_0";
+
+SELECT a FROM (SELECT a, b FROM x UNION SELECT a, b FROM x);
+SELECT "_q_0".a AS a FROM (SELECT x.a AS a, x.b AS b FROM x AS x UNION SELECT x.a AS a, x.b AS b FROM x AS x) AS "_q_0";
+
+WITH y AS (SELECT * FROM x) SELECT a FROM y;
+WITH y AS (SELECT x.a AS a FROM x AS x) SELECT y.a AS a FROM y;
+
+WITH z AS (SELECT * FROM x), q AS (SELECT b FROM z) SELECT b FROM q;
+WITH z AS (SELECT x.b AS b FROM x AS x), q AS (SELECT z.b AS b FROM z) SELECT q.b AS b FROM q;
+
+WITH z AS (SELECT * FROM x) SELECT a FROM z UNION SELECT a FROM z;
+WITH z AS (SELECT x.a AS a FROM x AS x) SELECT z.a AS a FROM z UNION SELECT z.a AS a FROM z;
+
+SELECT b FROM (SELECT a, SUM(b) AS b FROM x GROUP BY a);
+SELECT "_q_0".b AS b FROM (SELECT SUM(x.b) AS b FROM x AS x GROUP BY x.a) AS "_q_0";
+
+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";