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Alexander Korotkov e6af7b367c 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 21:17:37 +03:00
..
access Fix handling of NULL distances in KNN-GiST 2019-09-08 21:17:37 +03:00
bootstrap Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
catalog Fix typo 2019-08-21 11:12:44 -04:00
commands Fix many typos and inconsistencies 2019-07-01 10:00:23 +09:00
common Update unicode_norm_table.h to Unicode 12.1.0 2019-06-24 22:50:56 +02:00
datatype Update copyright for 2019 2019-01-02 12:44:25 -05:00
executor Fix many typos and inconsistencies 2019-07-01 10:00:23 +09:00
fe_utils Fix typos in various places 2019-06-03 13:44:03 +09:00
foreign Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
jit Fix duplicated words in comments 2019-05-14 09:37:35 +09:00
lib Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
libpq Switch position of some declarations in libpq.h 2019-06-09 11:33:52 +09:00
mb Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
nodes Fix representation of hash keys in Hash/HashJoin nodes. 2019-08-02 00:02:49 -07:00
optimizer Fix many typos and inconsistencies 2019-07-01 10:00:23 +09:00
parser Require the schema qualification in pg_temp.type_name(arg). 2019-08-05 07:48:45 -07:00
partitioning Improve pruning of a default partition 2019-08-04 11:18:45 -04:00
port Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
portability Update copyright for 2019 2019-01-02 12:44:25 -05:00
postmaster Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
regex Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
replication Remove superfluous newlines in function prototypes. 2019-07-31 00:07:09 -07:00
rewrite Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
snowball Update copyright for 2019 2019-01-02 12:44:25 -05:00
statistics Rework examine_opclause_expression to use varonleft 2019-07-20 16:34:58 +02:00
storage Remove superfluous newlines in function prototypes. 2019-07-31 00:07:09 -07:00
tcop Fix many typos and inconsistencies 2019-07-01 10:00:23 +09:00
tsearch Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
utils Avoid catalog lookups in RelationAllowsEarlyPruning(). 2019-08-28 16:18:39 +12:00
.gitignore Refactor dlopen() support 2018-09-06 11:33:04 +02:00
c.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
fmgr.h Fix double-word typos 2019-06-13 10:03:56 -04:00
funcapi.h Fix many typos and inconsistencies 2019-07-01 10:00:23 +09:00
getaddrinfo.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
getopt_long.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
Makefile Get rid of jsonpath_gram.h and jsonpath_scanner.h 2019-03-20 11:13:34 +03:00
miscadmin.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
pg_config.h.in Remove remaining traces of Rand_OpenSSL() from the tree 2019-06-27 08:25:26 +09:00
pg_config.h.win32 Stamp 12beta3. 2019-08-05 17:10:44 -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 Update copyright for 2019 2019-01-02 12:44:25 -05:00
pg_getopt.h Use our own getopt() on OpenBSD. 2019-01-18 15:06:26 -05:00
pg_trace.h Update copyright for 2019 2019-01-02 12:44:25 -05:00
pgstat.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
pgtar.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
pgtime.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
port.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
postgres.h Change function call information to be variable length. 2019-01-26 14:17:52 -08:00
postgres_ext.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
postgres_fe.h Update copyright for 2019 2019-01-02 12:44:25 -05:00
rusagestub.h Update copyright for 2019 2019-01-02 12:44:25 -05:00
windowapi.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00