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07082b08cc
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Alvaro Herrera 07082b08cc
Fix bogus completion tag usage in walsender 
Since commit fd5942c18f (2012, 9.3-era), walsender has been sending
completion tags for certain replication commands twice -- and they're
not even consistent.  Apparently neither libpq nor JDBC have a problem
with it, but it's not kosher.  Fix by remove the EndCommand() call in
the common code path for them all, and inserting specific calls to
EndReplicationCommand() specifically in those places where it's needed.

EndReplicationCommand() is a new simple function to send the completion
tag for replication commands.  Do this instead of sending a generic
SELECT completion tag for them all, which was also pretty bogus (if
innocuous).  While at it, change StartReplication() to use
EndReplicationCommand() instead of pg_puttextmessage().

In commit 2f9661311b, I failed to realize that replication commands
are not close-enough kin of regular SQL commands, so the
DROP_REPLICATION_SLOT tag I added is undeserved and a type pun.  Take it
out.

Backpatch to 13, where the latter commit appeared.  The duplicate tag
has been sent since 9.3, but since nothing is broken, it doesn't seem
worth fixing.

Per complaints from Tom Lane.

Discussion: https://postgr.es/m/1347966.1600195735@sss.pgh.pa.us
2020-09-16 21:16:25 -03:00
config Rename configure.in to configure.ac 2020-07-24 10:42:08 +02:00
contrib Fix amcheck child check pg_upgrade bug. 2020-09-16 10:42:30 -07:00
doc Add leader_pid field into the example of file_fdw for csvlog. 2020-09-16 18:47:39 +09:00
src Fix bogus completion tag usage in walsender 2020-09-16 21:16:25 -03:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add .editorconfig 2019-12-18 09:13:13 +01:00
.gitattributes gitattributes: Add new file 2019-11-12 08:13:55 +01:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
aclocal.m4 Fix configure's AC_CHECK_DECLS tests to work correctly with clang. 2018-11-19 12:01:47 -05:00
configure Split Makefile symbol CFLAGS_VECTOR into two symbols. 2020-09-06 21:28:16 -04:00
configure.ac Split Makefile symbol CFLAGS_VECTOR into two symbols. 2020-09-06 21:28:16 -04:00
COPYRIGHT Update copyrights for 2020 2020-01-01 12:21:45 -05:00
GNUmakefile.in Make install-tests target work with vpath builds 2020-05-31 18:33:00 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Don't unset MAKEFLAGS in non-GNU Makefile. 2019-06-25 09:36:21 +12:00
README Canonicalize some URLs 2020-02-10 20:47:50 +01:00
README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00

README 

PostgreSQL Database Management System
=====================================

This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces, many of which are listed here:

	https://www.postgresql.org/download/

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.