diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-10-25 20:30:30 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-10-25 20:30:30 +0000 |
| commit | ddb4015ec03d6850c3ed06aa06e17747ef14e90e (patch) | |
| tree | bafbc990fa7f118605e64f7d1eb0da5735de1b6a /src/backend/parser/parser.c | |
| parent | 62cfa0f75c18822e0b9811d124eae454451a94ed (diff) | |
| download | postgresql-ddb4015ec03d6850c3ed06aa06e17747ef14e90e.tar.gz postgresql-ddb4015ec03d6850c3ed06aa06e17747ef14e90e.zip | |
Fix longstanding bug that would sometimes let the planner generate a bad plan
for an outer join; symptom is bogus error "RIGHT JOIN is only supported with
merge-joinable join conditions". Problem was that select_mergejoin_clauses
did its tests in the wrong order. We need to force left join not right join
for a merge join when there are non-mergeable join clauses; but the test for
this only accounted for mergejoinability of the clause operator, and not
whether the left and right Vars were of the proper relations. Per report
from Jean-Pierre Pelletier.
Diffstat (limited to 'src/backend/parser/parser.c')
0 files changed, 0 insertions, 0 deletions