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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-11-11 20:33:53 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-11-11 20:33:53 +0000 |
| commit | c5c97318f974e983f06b7a3636bcdd6d1bdb73b3 (patch) | |
| tree | 0c29a2e2a92304fcd057d8631f57b1137b256f23 /src/backend/parser/parse_func.c | |
| parent | c336b58f93676320466daca77ae70e8cc372ede2 (diff) | |
| download | postgresql-c5c97318f974e983f06b7a3636bcdd6d1bdb73b3.tar.gz postgresql-c5c97318f974e983f06b7a3636bcdd6d1bdb73b3.zip | |
In find_mergeclauses_for_pathkeys, it's okay to return multiple merge
clauses per path key. Indeed, we *must* do so or we will be unable to
form a valid plan for FULL JOIN with overlapping join conditions, eg
select * from a full join b on
a.v1 = b.v1 and a.v2 = b.v2 and a.v1 = b.v2.
Diffstat (limited to 'src/backend/parser/parse_func.c')
0 files changed, 0 insertions, 0 deletions