1 files changed, 40 insertions, 0 deletions
diff --git a/tests/fixtures/optimizer/expand_laterals.sql b/tests/fixtures/optimizer/expand_laterals.sql
new file mode 100644
index 0000000..09bbd0f
--- /dev/null
+++ b/tests/fixtures/optimizer/expand_laterals.sql
@@ -0,0 +1,40 @@
+# title: expand alias reference
+SELECT
+  x.a + 1 AS i,
+  i + 1 AS j,
+  j + 1 AS k
+FROM x;
+SELECT
+  x.a + 1 AS i,
+  x.a + 1 + 1 AS j,
+  x.a + 1 + 1 + 1 AS k
+FROM x;
+
+# title: noop - reference comes before alias
+SELECT
+  b + 1 AS j,
+  x.a + 1 AS i
+FROM x;
+SELECT
+  b + 1 AS j,
+  x.a + 1 AS i
+FROM x;
+
+
+# title: subquery
+SELECT
+  *
+FROM (
+  SELECT
+    x.a + 1 AS i,
+    i + 1 AS j
+  FROM x
+);
+SELECT
+  *
+FROM (
+  SELECT
+    x.a + 1 AS i,
+    x.a + 1 + 1 AS j
+  FROM x
+);