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| author | Tom Lane <tgl@sss.pgh.pa.us> | 1999-10-01 04:08:24 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 1999-10-01 04:08:24 +0000 |
| commit | 389af07cf0bf80655b4f8f4eb0add8859d2154f8 (patch) | |
| tree | 38e81bcdb5e7d8ca864d2220c9e15628ba901e89 /src/backend/utils/adt/float.c | |
| parent | ce1f5ed5472d6fb3878cfc0ee5026a3764c25b57 (diff) | |
| download | postgresql-389af07cf0bf80655b4f8f4eb0add8859d2154f8.tar.gz postgresql-389af07cf0bf80655b4f8f4eb0add8859d2154f8.zip | |
Clean up rewriter routines to use expression_tree_walker and
expression_tree_mutator rather than ad-hoc tree walking code. This shortens
the code materially and fixes a fair number of sins of omission. Also,
change modifyAggrefQual to *not* recurse into subselects, since its mission
is satisfied if it removes aggregate functions from the top level of a
WHERE clause. This cures problems with queries of the form SELECT ...
WHERE x IN (SELECT ... HAVING something-using-an-aggregate), which would
formerly get mucked up by modifyAggrefQual. The routine is still
fundamentally broken, of course, but I don't think there's any way to get
rid of it before we implement subselects in FROM ...
Diffstat (limited to 'src/backend/utils/adt/float.c')
0 files changed, 0 insertions, 0 deletions