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Tom Lane 03d7f3ba58 Remove an unsafe Assert, and explain join_clause_is_movable_into() better. 
join_clause_is_movable_into() is approximate, in the sense that it might
sometimes return "false" when actually it would be valid to push the given
join clause down to the specified level.  This is okay ... but there was
an Assert in get_joinrel_parampathinfo() that's only safe if the answers
are always exact.  Comment out the Assert, and add a bunch of commentary
to clarify what's going on.

Per fuzz testing by Andreas Seltenreich.  The added regression test is
a pretty silly query, but it's based on his crasher example.

Back-patch to 9.2 where the faulty logic was introduced.
2015-07-28 13:20:40 -04:00
..
data Fix GIN to support null keys, empty and null items, and full index scans. 2011-01-07 19:16:24 -05:00
expected Remove an unsafe Assert, and explain join_clause_is_movable_into() better. 2015-07-28 13:20:40 -04:00
input Fix incorrect checking of deferred exclusion constraint after a HOT update. 2015-05-11 12:25:45 -04:00
output Fix incorrect checking of deferred exclusion constraint after a HOT update. 2015-05-11 12:25:45 -04:00
sql Remove an unsafe Assert, and explain join_clause_is_movable_into() better. 2015-07-28 13:20:40 -04:00
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
GNUmakefile Update copyrights for 2013 2013-01-01 17:15:01 -05:00
Makefile Remove remains of old depend target. 2007-01-20 17:16:17 +00:00
parallel_schedule Fix some more problems with nested append relations. 2014-10-01 19:30:30 -04:00
pg_regress.c pg_regress: Write processed input/*.source into output dir 2015-02-15 01:20:57 -05:00
pg_regress.h Update copyrights for 2013 2013-01-01 17:15:01 -05:00
pg_regress_main.c Update copyrights for 2013 2013-01-01 17:15:01 -05:00
README Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:12 -05:00
regress.c Diagnose incompatible OpenLDAP versions during build and test. 2014-07-22 11:01:41 -04:00
regressplans.sh Tweak regressplans.sh to use any already-set PGOPTIONS. 2000-12-18 02:45:47 +00:00
resultmap Enable compiling with the mingw-w64 32 bit compiler. 2011-12-10 15:35:41 -05:00
serial_schedule Fix some more problems with nested append relations. 2014-10-01 19:30:30 -04:00
standby_schedule Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00

README 

Documentation concerning how to run these regression tests and interpret
the results can be found in the PostgreSQL manual, in the chapter
"Regression Tests".