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Fujii Masao 7fc1a81e49 postgres_fdw: Restructure connection retry logic. 
Commit 32a9c0bdf introduced connection retry logic into postgres_fdw.
Previously it used goto statement for retry. This commit gets rid of that
goto from the logic to make the code simpler and easier-to-read.

When getting out of PG_CATCH() for the retry, the error state should be
cleaned up and the memory context should be reset. But commit 32a9c0bdf
forgot to do that. This commit also fixes this bug.

Previously only PQstatus()==CONNECTION_BAD was verified to detect
connection failure. But this could cause false detection in the case where
any error other than connection failure (e.g., out-of-memory) was thrown
after a broken connection was detected in libpq and CONNECTION_BAD is set.
To fix this issue, this commit changes the logic so that it also checks
the error's sqlstate is ERRCODE_CONNECTION_FAILURE.

Author: Fujii Masao
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/2943611.1602375376@sss.pgh.pa.us
 		2020-10-16 13:58:45 +09:00
config Rename configure.in to configure.ac 2020-07-24 10:42:08 +02:00
contrib postgres_fdw: Restructure connection retry logic. 2020-10-16 13:58:45 +09:00
doc doc: improve description of synchronous_commit modes 2020-10-15 15:15:29 -04:00
src llvmjit: Work around bug in LLVM 3.9 causing crashes after 72559438f9. 2020-10-15 18:17:00 -07:00
.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
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
aclocal.m4 Fix configure's AC_CHECK_DECLS tests to work correctly with clang. 2018-11-19 12:01:47 -05:00
configure Fix our Windows stat() emulation to handle file sizes > 4GB. 2020-10-09 16:20:12 -04:00
configure.ac Fix our Windows stat() emulation to handle file sizes > 4GB. 2020-10-09 16:20:12 -04:00

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/.