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2a6368343f
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Alexander Korotkov 2a6368343f Add support for nearest-neighbor (KNN) searches to SP-GiST 
Currently, KNN searches were supported only by GiST.  SP-GiST also capable to
support them.  This commit implements that support.  SP-GiST scan stack is
replaced with queue, which serves as stack if no ordering is specified.  KNN
support is provided for three SP-GIST opclasses: quad_point_ops, kd_point_ops
and poly_ops (catversion is bumped).  Some common parts between GiST and SP-GiST
KNNs are extracted into separate functions.

Discussion: https://postgr.es/m/570825e8-47d0-4732-2bf6-88d67d2d51c8%40postgrespro.ru
Author: Nikita Glukhov, Alexander Korotkov based on GSoC work by Vlad Sterzhanov
Review: Andrey Borodin, Alexander Korotkov
2018-09-19 01:54:10 +03:00
..
access Add support for nearest-neighbor (KNN) searches to SP-GiST 2018-09-19 01:54:10 +03:00
bootstrap Install a check for mis-linking of src/port and src/common functions. 2018-09-09 12:23:23 -04:00
catalog Refactor routines for subscription and publication lookups 2018-09-18 12:00:18 +09:00
commands Fix ALTER/TYPE on columns referenced by FKs in partitioned tables 2018-09-14 13:41:20 -03:00
executor Fix parsetree representation of XMLTABLE(XMLNAMESPACES(DEFAULT ...)). 2018-09-17 13:16:32 -04:00
foreign Remove bogus "extern" annotations on function definitions. 2018-02-19 12:07:44 -05:00
jit In v11, disable JIT by default (it's still enabled by default in HEAD). 2018-09-15 17:24:35 -04:00
lib doc: Update redirecting links 2018-07-16 10:48:05 +02:00
libpq Minor cleanup/future-proofing for pg_saslprep(). 2018-09-08 18:20:36 -04:00
main Update copyright for 2018 2018-01-02 23:30:12 -05:00
nodes Add a debugging option to stress-test outfuncs.c and readfuncs.c. 2018-09-18 17:11:54 -04:00
optimizer Fix some minor issues exposed by outfuncs/readfuncs testing. 2018-09-18 15:08:28 -04:00
parser Add a debugging option to stress-test outfuncs.c and readfuncs.c. 2018-09-18 17:11:54 -04:00
partitioning Remove duplicated words split across lines in comments 2018-09-08 12:24:19 -07:00
po Translation updates 2018-06-25 12:37:18 +02:00
port Refactor dlopen() support 2018-09-06 11:33:04 +02:00
postmaster Refactor dlopen() support 2018-09-06 11:33:04 +02:00
regex Clean up warnings from -Wimplicit-fallthrough. 2018-05-01 19:35:08 -04:00
replication Improve some error message strings and errcodes 2018-09-04 11:06:04 -07:00
rewrite Fix some minor issues exposed by outfuncs/readfuncs testing. 2018-09-18 15:08:28 -04:00
snowball Avoid unnecessary use of pg_strcasecmp for already-downcased identifiers. 2018-01-26 18:25:14 -05:00
statistics Fix typos. 2018-08-27 09:32:59 +12:00
storage Allow DSM allocation to be interrupted. 2018-09-18 22:56:36 +12:00
tcop Add a debugging option to stress-test outfuncs.c and readfuncs.c. 2018-09-18 17:11:54 -04:00
tsearch Hand code string to integer conversion for performance. 2018-07-22 14:58:23 -07:00
utils Add support for nearest-neighbor (KNN) searches to SP-GiST 2018-09-19 01:54:10 +03:00
.gitignore Add .gitignore entries for AIX-specific intermediate build artifacts. 2015-07-08 20:44:22 -04:00
common.mk Remove PARTIAL_LINKING build mode. 2018-03-30 17:33:04 -07:00
Makefile Refactor dlopen() support 2018-09-06 11:33:04 +02:00
nls.mk Translation updates 2018-06-25 12:37:18 +02:00