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Tom Lane 77ba610805 Revert "Use Foreign Key relationships to infer multi-column join selectivity". 
This commit reverts 137805f89 as well as the associated commits 015e88942,
5306df283, and 68d704edb.  We found multiple bugs in this feature, and
there was concern about possible planner slowdown (though to be fair,
exhibiting a very large slowdown proved difficult).  The way forward
requires a considerable rewrite, which may or may not be possible to
accomplish in time for beta2.  In my judgment reviewing the rewrite will
be easier to accomplish starting from a clean slate, so let's temporarily
revert what's there now.  This also leaves us in a safe state if it turns
out to be necessary to postpone the rewrite to the next development cycle.

Discussion: <20160429102531.GA13701@huehner.biz>
2016-06-07 17:21:17 -04:00
..
.gitignore Avoid maintaining three separate copies of the error codes list. 2011-02-03 22:32:49 -05:00
acl.h Reserve the "pg_" namespace for roles 2016-04-08 16:56:27 -04:00
aclchk_internal.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
array.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
arrayaccess.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
ascii.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
attoptcache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
builtins.h Add combine functions for various floating-point aggregates. 2016-04-08 13:47:06 -04:00
bytea.h Extend sortsupport for text to more opclasses. 2016-02-03 14:29:53 -05:00
cash.h Add casts from int4 and int8 to numeric. 2011-04-05 09:35:43 -04:00
catcache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
combocid.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
date.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
datetime.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
datum.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
dynahash.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
dynamic_loader.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
elog.h Make init_spin_delay() C89 compliant and change stuck spinlock reporting. 2016-04-13 17:00:53 -07:00
evtcache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
expandeddatum.h Inline the easy cases in MakeExpandedObjectReadOnly(). 2016-06-03 18:34:05 -04:00
fmgrtab.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
formatting.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
geo_decls.h Introduce SP-GiST operator class over box. 2016-03-30 18:42:36 +03:00
guc.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
guc_tables.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
help_config.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
hsearch.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
index_selfuncs.h Restructure index access method API to hide most of it at the C level. 2016-01-17 19:36:59 -05:00
inet.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
int8.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
inval.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
json.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
jsonapi.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
jsonb.h Add jsonb_insert 2016-04-06 19:25:00 +03:00
logtape.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
lsyscache.h Improve index AMs' opclass validation procedures. 2016-01-21 19:47:15 -05:00
memdebug.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
memutils.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
nabstime.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
numeric.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
palloc.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pg_crc.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pg_locale.h Cope if platform declares mbstowcs_l(), but not locale_t, in <xlocale.h>. 2016-03-15 13:19:57 -04:00
pg_lsn.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pg_rusage.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
plancache.h Only try to push down foreign joins if the user mapping OIDs match. 2016-01-28 14:05:36 -05:00
portal.h Widen query numbers-of-tuples-processed counters to uint64. 2016-03-12 16:05:29 -05:00
ps_status.h Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
rangetypes.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
rel.h Revert "Use Foreign Key relationships to infer multi-column join selectivity". 2016-06-07 17:21:17 -04:00
relcache.h Revert "Use Foreign Key relationships to infer multi-column join selectivity". 2016-06-07 17:21:17 -04:00
relfilenodemap.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
relmapper.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
reltrigger.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
resowner.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
resowner_private.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
rls.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
ruleutils.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
sampling.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
selfuncs.h Support CREATE ACCESS METHOD 2016-03-23 23:01:35 -03:00
snapmgr.h Add a few entries to the tail of time mapping, to see old values. 2016-04-29 16:46:08 -05:00
snapshot.h Add the "snapshot too old" feature 2016-04-08 14:36:30 -05:00
sortsupport.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
spccache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
syscache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
timeout.h Be more predictable about reporting "lock timeout" vs "statement timeout". 2016-05-27 10:40:20 -04:00
timestamp.h Add parallel query support functions for assorted aggregates. 2016-04-05 14:32:53 -04:00
tqual.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
tuplesort.h Reuse abbreviated keys in ordered [set] aggregates. 2016-02-17 15:40:00 +05:30
tuplestore.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
typcache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
tzparser.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
uuid.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
varbit.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
xml.h Update copyright for 2016 2016-01-02 13:33:40 -05:00