postgres

History

Michael Paquier 6ce16088bf Reduce relcache access in WAL sender streaming logical changes get_rel_sync_entry(), which is called each time a change needs to be logically replicated, is a rather hot code path in the WAL sender sending logical changes. This code path was doing a relcache access on relkind and relpartition for each logical change, but we only need to know this information when building or re-building the cached information for a relation. Some measurements prove that this is noticeable in perf profiles, particularly when attempting to replicate changes from relations that are not published as these cause less overhead in the WAL sender, delaying further the replication of changes for relations that are published. Issue introduced in `83fd453`. Author: Hou Zhijie Reviewed-by: Kyotaro Horiguchi, Euler Taveira Discussion: https://postgr.es/m/OS0PR01MB5716E863AA9E591C1F010F7A947D9@OS0PR01MB5716.jpnprd01.prod.outlook.com Backpatch-through: 13		4 years ago
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backend	Reduce relcache access in WAL sender streaming logical changes	4 years ago
bin	pg_dump: Refactor dumpDatabase()	4 years ago
common	Add fast path for validating UTF-8 text	4 years ago
fe_utils	Rethink pg_dump's handling of object ACLs.	4 years ago
include	Fix index-only scan plans, take 2.	4 years ago
interfaces	Remove dynamic translation of regression test scripts, step 2.	4 years ago
makefiles	Add NO_INSTALL option to pgxs	5 years ago
pl	Revert changes about warnings/errors for placeholders.	4 years ago
port	Check for STATUS_DELETE_PENDING on Windows.	4 years ago
template	…
test	Fix index-only scan plans, take 2.	4 years ago
timezone	Update time zone data files to tzdata release 2021e.	4 years ago
tools	ci: Add continuous integration for github repositories via cirrus-ci.	4 years ago
tutorial	…
.gitignore	…
DEVELOPERS	…
Makefile	…
Makefile.global.in	Add support for LZ4 compression in pg_receivewal	4 years ago
Makefile.shlib	AIX: Fix missing libpq symbols by respecting SHLIB_EXPORTS.	4 years ago
nls-global.mk	…