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Tom Lane 4e0c743c18 Fix cross-checking of ReservedBackends/max_wal_senders/MaxConnections. 
We were independently checking ReservedBackends < MaxConnections and
max_wal_senders < MaxConnections, but because walsenders aren't allowed
to use superuser-reserved connections, that's really the wrong thing.
Correct behavior is to insist on ReservedBackends + max_wal_senders being
less than MaxConnections.  Fix the code and associated documentation.

This has been wrong for a long time, but since the situation probably
hardly ever arises in the field (especially pre-v10, when the default
for max_wal_senders was zero), no back-patch.

Discussion: https://postgr.es/m/28271.1520195491@sss.pgh.pa.us
 		2018-03-08 11:25:26 -05:00
..
backend Fix cross-checking of ReservedBackends/max_wal_senders/MaxConnections. 2018-03-08 11:25:26 -05:00
bin Add infrastructure to support server-version-dependent tab completion. 2018-03-05 15:37:34 -05:00
common Update copyright for 2018 2018-01-02 23:30:12 -05:00
fe_utils Empty search_path in Autovacuum and non-psql/pgbench clients. 2018-02-26 07:39:44 -08:00
include Fix typo 2018-03-07 09:02:57 -05:00
interfaces Trivial adjustments in preparation for bootstrap data conversion. 2018-03-03 11:23:33 -05:00
makefiles Always use -fPIC, not -fpic, when building shared libraries with gcc. 2017-06-01 13:32:55 -04:00
pl Remove some obsolete procedure-specific code from PLs 2018-03-05 11:51:15 -05:00
port Add an assertion that we don't pass NULL to snprintf("%s"). 2018-02-14 15:06:01 -05:00
template Force "restrict" not to be used when compiling with xlc. 2017-10-13 12:15:06 -07:00
test Fix test counting in SSL tests 2018-03-07 00:53:25 -05:00
timezone Update time zone data files to tzdata release 2018c. 2018-01-27 16:42:28 -05:00
tools Actually pick .lib file when multiple perl libs are present 2018-03-04 18:01:25 +01:00
tutorial Update copyright for 2018 2018-01-02 23:30:12 -05:00
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Makefile Build src/test/isolation during "make" and "make install". 2017-11-22 20:18:15 -08:00
Makefile.global.in Tests for Kerberos/GSSAPI authentication 2018-03-06 10:57:36 -05:00
Makefile.shlib Remove support for bcc and msvc standalone libpq builds 2017-04-11 15:22:21 +02:00
nls-global.mk nls-global.mk: search build dir for source files, too 2016-06-07 18:55:18 -04:00