pgsql: Repair planning bug introduced in 7.4: outer-join ON clauses that

Started by Tom Laneover 20 years ago1 messagescomitters

tgl@sss.pgh.pa.us

over 20 years ago

Log Message:
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Repair planning bug introduced in 7.4: outer-join ON clauses that referenced
only the inner-side relation would be considered as potential equijoin clauses,
which is wrong because the condition doesn't necessarily hold above the point
of the outer join. Per test case from Kevin Grittner (bug#1916).

Tags:
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REL8_0_STABLE

Modified Files:
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pgsql/src/backend/optimizer/plan:
initsplan.c (r1.104 -> r1.104.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/plan/initsplan.c.diff?r1=1.104&r2=1.104.4.1)
planmain.c (r1.81 -> r1.81.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/plan/planmain.c.diff?r1=1.81&r2=1.81.4.1)
pgsql/src/include/optimizer:
planmain.h (r1.79 -> r1.79.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/optimizer/planmain.h.diff?r1=1.79&r2=1.79.4.1)