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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2023-07-24 08:03:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2023-07-24 08:03:45 +0000 |
commit | ca57dc468e5d8d0920e964d45ad25271ae6e633d (patch) | |
tree | 319d8bffcb5c3e9afe9e62beca9ef401480578d2 /tests/test_optimizer.py | |
parent | Adding upstream version 17.4.1. (diff) | |
download | sqlglot-ca57dc468e5d8d0920e964d45ad25271ae6e633d.tar.xz sqlglot-ca57dc468e5d8d0920e964d45ad25271ae6e633d.zip |
Adding upstream version 17.7.0.upstream/17.7.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/test_optimizer.py | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/test_optimizer.py b/tests/test_optimizer.py index 0608903..cd0b9b1 100644 --- a/tests/test_optimizer.py +++ b/tests/test_optimizer.py @@ -427,6 +427,27 @@ FROM READ_CSV('tests/fixtures/optimizer/tpc-h/nation.csv.gz', 'delimiter', '|') {"s.b"}, ) + # Check that parentheses don't introduce a new scope unless an alias is attached + sql = "SELECT * FROM (((SELECT * FROM (t1 JOIN t2) AS t3) JOIN (SELECT * FROM t4)))" + expression = parse_one(sql) + for scopes in traverse_scope(expression), list(build_scope(expression).traverse()): + self.assertEqual(len(scopes), 4) + + self.assertEqual(scopes[0].expression.sql(), "t1, t2") + self.assertEqual(set(scopes[0].sources), {"t1", "t2"}) + + self.assertEqual(scopes[1].expression.sql(), "SELECT * FROM (t1, t2) AS t3") + self.assertEqual(set(scopes[1].sources), {"t3"}) + + self.assertEqual(scopes[2].expression.sql(), "SELECT * FROM t4") + self.assertEqual(set(scopes[2].sources), {"t4"}) + + self.assertEqual( + scopes[3].expression.sql(), + "SELECT * FROM (((SELECT * FROM (t1, t2) AS t3), (SELECT * FROM t4)))", + ) + self.assertEqual(set(scopes[3].sources), {""}) + @patch("sqlglot.optimizer.scope.logger") def test_scope_warning(self, logger): self.assertEqual(len(traverse_scope(parse_one("WITH q AS (@y) SELECT * FROM q"))), 1) |