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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2000-03-12 00:39:52 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2000-03-12 00:39:52 +0000 |
| commit | 117fa25ae1fccbb210cc92c86274307475798aea (patch) | |
| tree | cf52552d34a0f42ca284c3615ecb7c2ef51376c1 /src/backend/optimizer/prep/prepunion.c | |
| parent | e8be8ffaf0d627a853814ec6105d9d719b500de9 (diff) | |
Clean up grammar's handling of NULL in expressions: a_expr_or_null is
gone, replaced by plain a_expr. The few places where we needed to
distinguish NULL from a_expr are now handled by tests inside the actions
rather than by separate productions. This allows us to accept queries
like 'SELECT 1 + NULL' without requiring parentheses around the NULL.
Diffstat (limited to 'src/backend/optimizer/prep/prepunion.c')
0 files changed, 0 insertions, 0 deletions