Fujii Masao 614e0729a8 Improve the performance of relation deletes during recovery. ... When multiple relations are deleted at the same transaction, the files of those relations are deleted by one call to smgrdounlinkall(), which leads to scan whole shared_buffers only one time. OTOH, previously, during recovery, smgrdounlink() (not smgrdounlinkall()) was called for each file to delete, which led to scan shared_buffers multiple times. Obviously this could cause to increase the WAL replay time very much especially when shared_buffers was huge. To alleviate this situation, this commit changes the recovery so that it also calls smgrdounlinkall() only one time to delete multiple relation files. This is just fix for oversight of commit 279628a0a7, not new feature. So, per discussion on pgsql-hackers, we concluded to backpatch this to all supported versions. Author: Fujii Masao Reviewed-by: Michael Paquier, Andres Freund, Thomas Munro, Kyotaro Horiguchi, Takayuki Tsunakawa Discussion: https://postgr.es/m/CAHGQGwHVQkdfDqtvGVkty+19cQakAydXn1etGND3X0PHbZ3+6w@mail.gmail.com		2018-07-05 02:27:46 +09:00
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access	Fix scenario where streaming standby gets stuck at a continuation record.	2018-05-05 01:35:15 +03:00
bootstrap	pgindent run for 9.5	2015-05-23 21:35:49 -04:00
catalog	Fix bogus provolatile/proparallel markings on a few built-in functions.	2018-03-30 18:14:51 -04:00
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 WHERE CURRENT OF when the referenced cursor uses an index-only scan.	2018-03-17 14:59:31 -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	Give nicer error message when connecting to a v10 server requiring SCRAM.	2017-05-05 11:24:12 +03:00
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	Create new ParseExprKind for use by policy expressions.	2015-07-29 15:41:00 -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	Fix "base" snapshot handling in logical decoding	2018-06-26 16:38:34 -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	Improve the performance of relation deletes during recovery.	2018-07-05 02:27:46 +09:00
tcop	Mark assorted variables PGDLLIMPORT.	2017-12-05 09:30:57 -05:00
tsearch	Fix statically allocated struct with FLEXIBLE_ARRAY_MEMBER member.	2015-02-20 17:50:18 -05:00
utils	Fix mishandling of quoted-list GUC values in pg_dump and ruleutils.c.	2018-03-21 20:03:28 -04:00
.gitignore	Autoconfiscate selection of 64-bit int type for 64-bit large object API.	2012-10-07 21:52:43 -04:00
c.h	Support platforms where strtoll/strtoull are spelled __strtoll/__strtoull.	2018-05-19 14:22:18 -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	Support platforms where strtoll/strtoull are spelled __strtoll/__strtoull.	2018-05-19 14:22:18 -04:00
pg_config.h.win32	Support platforms where strtoll/strtoull are spelled __strtoll/__strtoull.	2018-05-19 14:22:18 -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	Update copyright for 2015	2015-01-06 11:43:47 -05:00
pg_trace.h	Update copyright for 2015	2015-01-06 11:43:47 -05:00
pgstat.h	Don't reset changes_since_analyze after a selective-columns ANALYZE.	2016-06-06 17:44:17 -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	On all Windows platforms, not just Cygwin, use _timezone and _tzname.	2018-05-01 12:02:41 -04:00
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