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Tom Lane 11086f2f2b Repair planner bug introduced in 8.2 by ability to rearrange outer joins: ... in cases where a sub-SELECT inserts a WHERE clause between two outer joins, that clause may prevent us from re-ordering the two outer joins. The code was considering only the joins' own ON-conditions in determining reordering safety, which is not good enough. Add a "delay_upper_joins" flag to OuterJoinInfo to flag that we have detected such a clause and higher-level outer joins shouldn't be permitted to commute with this one. (This might seem overly coarse, but given the current rules for OJ reordering, it's sufficient AFAICT.) The failure case is actually pretty narrow: it needs a WHERE clause within the RHS of a left join that checks the RHS of a lower left join, but is not strict for that RHS (else we'd have simplified the lower join to a plain join). Even then no failure will be manifest unless the planner chooses to rearrange the join order. Per bug report from Adam Terrey.		19 years ago
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access	To support external compression of archived WAL data, add a flag bit to	19 years ago
bootstrap	First phase of plan-invalidation project: create a plan cache management	19 years ago
catalog	Have TRUNCATE advance the affected table's relfrozenxid to RecentXmin, to	19 years ago
commands	Fix dumb compile error in the last patch.	19 years ago
executor	Teach tuplestore.c to throw away data before the "mark" point when the caller	19 years ago
lib	Remove the currently unused FRONTEND case in dllist.c. This allows the usage	19 years ago
libpq	Remove redundant logging of send failures when SSL is in use. While pqcomm.c	19 years ago
main	Cleanup the bootstrap code a little, and rename "dummy procs" in the code	19 years ago
nodes	Repair planner bug introduced in 8.2 by ability to rearrange outer joins:	19 years ago
optimizer	Repair planner bug introduced in 8.2 by ability to rearrange outer joins:	19 years ago
parser	Support arrays of composite types, including the rowtypes of regular tables	19 years ago
po	Translation updates	19 years ago
port	Set maximum semaphore count to 32767 instead of 1. Fixes	19 years ago
postmaster	Make sure we don't skip databases that are supposed to be vacuumed "exactly	19 years ago
regex	Wording cleanup for error messages. Also change can't -> cannot.	19 years ago
rewrite	Modify processing of DECLARE CURSOR and EXPLAIN so that they can resolve the	19 years ago
storage	Dept. of second thoughts: add comments cautioning against using	19 years ago
tcop	Fix oversight in my patch of yesterday: forgot to ensure that stats would	19 years ago
utils	Teach tuplestore.c to throw away data before the "mark" point when the caller	19 years ago
Makefile	Replace useless uses of := by = in makefiles.	19 years ago
nls.mk	Add _ to gettext triggers. Must have been forgotten here when it was introduced.	20 years ago