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Diffstat (limited to 'tests/dialects/test_prql.py')
| -rw-r--r-- | tests/dialects/test_prql.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/dialects/test_prql.py b/tests/dialects/test_prql.py index 69e2e28..1a0eec2 100644 --- a/tests/dialects/test_prql.py +++ b/tests/dialects/test_prql.py @@ -58,3 +58,11 @@ class TestPRQL(Validator): self.validate_identity( "from x intersect y", "SELECT * FROM x INTERSECT ALL SELECT * FROM y" ) + self.validate_identity( + "from x filter a == null filter null != b", + "SELECT * FROM x WHERE a IS NULL AND NOT b IS NULL", + ) + self.validate_identity( + "from x filter (a > 1 || null != b || c != null)", + "SELECT * FROM x WHERE (a > 1 OR NOT b IS NULL OR NOT c IS NULL)", + ) |