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Implement pipeline mode in libpq

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Pipeline mode in libpq lets an application avoid the Sync messages in
the FE/BE protocol that are implicit in the old libpq API after each
query.  The application can then insert Sync at its leisure with a new
libpq function PQpipelineSync.  This can lead to substantial reductions
in query latency.

Co-authored-by: Craig Ringer <craig.ringer@enterprisedb.com>
Co-authored-by: Matthieu Garrigues <matthieu.garrigues@gmail.com>
Co-authored-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Aya Iwata <iwata.aya@jp.fujitsu.com>
Reviewed-by: Daniel Vérité <daniel@manitou-mail.org>
Reviewed-by: David G. Johnston <david.g.johnston@gmail.com>
Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Kirk Jamison <k.jamison@fujitsu.com>
Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
Reviewed-by: Nikhil Sontakke <nikhils@2ndquadrant.com>
Reviewed-by: Vaishnavi Prabakaran <VaishnaviP@fast.au.fujitsu.com>
Reviewed-by: Zhihong Yu <zyu@yugabyte.com>

Discussion: https://postgr.es/m/CAMsr+YFUjJytRyV4J-16bEoiZyH=4nj+sQ7JP9ajwz=B4dMMZw@mail.gmail.com
Discussion: https://postgr.es/m/CAJkzx4T5E-2cQe3dtv2R78dYFvz+in8PY7A8MArvLhs_pg75gg@mail.gmail.com
This commit is contained in:
Alvaro Herrera
2021-03-15 18:13:42 -03:00
parent 146cb3889c
commit acb7e4eb6b
18 changed files with 2706 additions and 113 deletions
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9
src/tools/msvc/Mkvcbuild.pm
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@ -33,10 +33,11 @@ my @unlink_on_exit;
# Set of variables for modules in contrib/ and src/test/modules/
my $contrib_defines = { 'refint' => 'REFINT_VERBOSE' };
my @contrib_uselibpq = ('dblink', 'oid2name', 'postgres_fdw', 'vacuumlo');
my @contrib_uselibpgport = ('oid2name', 'vacuumlo');
my @contrib_uselibpgcommon = ('oid2name', 'vacuumlo');
my $contrib_extralibs = undef;
my @contrib_uselibpq =
('dblink', 'oid2name', 'postgres_fdw', 'vacuumlo', 'libpq_pipeline');
my @contrib_uselibpgport = ('libpq_pipeline', 'oid2name', 'vacuumlo');
my @contrib_uselibpgcommon = ('libpq_pipeline', 'oid2name', 'vacuumlo');
my $contrib_extralibs = { 'libpq_pipeline' => ['ws2_32.lib'] };
my $contrib_extraincludes = { 'dblink' => ['src/backend'] };
my $contrib_extrasource = {
'cube' => [ 'contrib/cube/cubescan.l', 'contrib/cube/cubeparse.y' ],

2
src/tools/pgindent/typedefs.list
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@ -1563,10 +1563,12 @@ PG_Locale_Strategy
PG_Lock_Status
PG_init_t
PGcancel
PGcmdQueueEntry
PGconn
PGdataValue
PGlobjfuncs
PGnotify
PGpipelineStatus
PGresAttDesc
PGresAttValue
PGresParamDesc