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Alexander Korotkov 3c155bafa5 Fix handling of NULL distances in KNN-GiST 
In order to implement NULL LAST semantic GiST previously assumed distance to
the NULL value to be Inf.  However, our distance functions can return Inf and
NaN for non-null values.  In such cases, NULL LAST semantic appears to be
broken.  This commit fixes that by introducing separate array of null flags for
distances.

Backpatch to all supported versions.

Discussion: https://postgr.es/m/CAPpHfdsNvNdA0DBS%2BwMpFrgwT6C3-q50sFVGLSiuWnV3FqOJuQ%40mail.gmail.com
Author: Alexander Korotkov
Backpatch-through: 9.4
2019-09-08 21:49:16 +03:00
..
access Fix handling of NULL distances in KNN-GiST 2019-09-08 21:49:16 +03:00
bootstrap pgindent run for 9.5 2015-05-23 21:35:49 -04:00
catalog Require the schema qualification in pg_temp.type_name(arg). 2019-08-05 07:48:45 -07:00
commands Mark assorted variables PGDLLIMPORT. 2017-12-05 09:30:57 -05:00
common Fix integer-overflow problems in interval comparison. 2017-04-05 23:51:28 -04:00
datatype Define integer limits independently from the system definitions. 2015-04-02 17:43:35 +02:00
executor Fix failure with initplans used conditionally during EvalPlanQual rechecks. 2018-09-15 13:42:34 -04:00
fe_utils Empty search_path in Autovacuum and non-psql/pgbench clients. 2018-02-26 07:39:48 -08:00
foreign Allow foreign and custom joins to handle EvalPlanQual rechecks. 2015-12-08 12:54:33 -05:00
lib Revert "Permit dump/reload of not-too-large >1GB tuples" 2016-12-06 12:45:49 -03:00
libpq Fix detection of passwords hashed with MD5 2019-04-24 09:05:30 +09:00
mb Teach UtfToLocal/LocalToUtf to support algorithmic encoding conversions. 2015-05-14 22:27:12 -04:00
nodes Change more places to be less trusting of RestrictInfo.is_pushed_down. 2018-04-20 15:19:17 -04:00
optimizer Fix incorrect handling of join clauses pushed into parameterized paths. 2018-04-19 15:49:12 -04:00
parser Require the schema qualification in pg_temp.type_name(arg). 2019-08-05 07:48:45 -07:00
port Remove overzeleous assertions in pg_atomic_flag code. 2018-04-07 18:30:15 -07:00
portability Use mmap MAP_NOSYNC option to limit shared memory writes 2015-03-21 22:06:19 -04:00
postmaster Mark assorted variables PGDLLIMPORT. 2017-12-05 09:30:57 -05:00
regex Suppress compiler warnings about useless comparison of unsigned to zero. 2016-02-15 17:11:52 -05:00
replication Mark ReplicationSlotCtl as PGDLLIMPORT. 2019-06-13 10:53:17 -04:00
rewrite Fix creation of resjunk tlist entries for inherited mixed UPDATE/DELETE. 2017-11-27 17:54:11 -05:00
snowball Update copyright for 2015 2015-01-06 11:43:47 -05:00
storage Fix spinlock assembly code for MIPS so it works on MIPS r6. 2019-06-22 20:31:50 -04:00
tcop Fix event triggers for partitioned tables 2018-10-06 19:17:46 -03:00
tsearch Fix statically allocated struct with FLEXIBLE_ARRAY_MEMBER member. 2015-02-20 17:50:18 -05:00
utils Don't read fields of a misaligned ExpandedObjectHeader or AnyArrayType. 2019-06-30 17:34:21 -07:00
.gitignore Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
c.h Allow btree comparison functions to return INT_MIN. 2018-10-05 16:01:30 -04:00
fmgr.h Revert addition of PGDLLEXPORT in PG_FUNCTION_INFO_V1 macro. 2016-10-12 18:02:03 -04:00
funcapi.h Add a utility function to extract variadic function arguments 2017-10-25 07:20:37 -04:00
getaddrinfo.h Update copyright for 2015 2015-01-06 11:43:47 -05:00
getopt_long.h Update copyright for 2015 2015-01-06 11:43:47 -05:00
Makefile Empty search_path in Autovacuum and non-psql/pgbench clients. 2018-02-26 07:39:48 -08:00
miscadmin.h Mark assorted variables PGDLLIMPORT. 2017-12-05 09:30:57 -05:00
pg_config.h.in Avoid thread-safety problem in ecpglib. 2019-01-21 23:18:58 -05:00
pg_config.h.win32 Stamp 9.5.19. 2019-08-05 17:20:40 -04:00
pg_config_ext.h.in Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
pg_config_ext.h.win32 Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
pg_config_manual.h Further reduce the number of semaphores used under --disable-spinlocks. 2016-04-18 13:33:07 -04:00
pg_getopt.h Use our own getopt() on OpenBSD. 2019-01-18 15:06:26 -05:00
pg_trace.h Update copyright for 2015 2015-01-06 11:43:47 -05:00
pgstat.h Rearrange pgstat_bestart() to avoid failures within its critical section. 2019-05-11 21:27:13 -04:00
pgtar.h Adopt the GNU convention for handling tar-archive members exceeding 8GB. 2015-11-21 20:21:32 -05:00
pgtime.h Mark assorted variables PGDLLIMPORT. 2017-12-05 09:30:57 -05:00
port.h Fix misc typos in comments. 2019-01-23 13:46:51 +02:00
postgres.h Adjust DatumGetBool macro, this time for sure. 2016-04-28 11:51:08 -04:00
postgres_ext.h pgindent run for 9.4 2014-05-06 12:12:18 -04:00
postgres_fe.h Update copyright for 2015 2015-01-06 11:43:47 -05:00
rusagestub.h Update copyright for 2015 2015-01-06 11:43:47 -05:00
windowapi.h Update copyright for 2015 2015-01-06 11:43:47 -05:00