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Michael Paquier 2d689babe3 Improve handling of dropped objects in pg_event_trigger_ddl_commands() 
An object found as dropped when digging into the list of objects
returned by pg_event_trigger_ddl_commands() could cause a cache lookup
error, as the calls grabbing for the object address and the type name
would fail if the object was missing.

Those lookup errors could be seen with combinations of ALTER TABLE
sub-commands involving identity columns.  The lookup logic is changed in
this code path to get a behavior similar to any other SQL-callable
function by ignoring objects that are not found, taking advantage of
2a10fdc.  The back-branches are not changed, as they require this commit
that is too invasive for stable branches.

While on it, add test cases to exercise event triggers with identity
columns, and stress more cases with the event ddl_command_end for
relations.

Author: Sven Klemm, Aleksander Alekseev, Michael Paquier
Discussion: https://postgr.es/m/CAMCrgp2R1cEXU53iYKtW6yVEp2_yKUz+z=3-CTrYpPP+xryRtg@mail.gmail.com
2021-06-14 14:57:22 +09:00
config Update config.guess and config.sub 2021-04-21 16:33:40 +02:00
contrib Adjust batch size in postgres_fdw to not use too many parameters 2021-06-08 20:28:31 +02:00
doc Remove forced toast recompression in VACUUM FULL/CLUSTER 2021-06-14 09:25:50 +09:00
src Improve handling of dropped objects in pg_event_trigger_ddl_commands() 2021-06-14 14:57:22 +09:00
.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 entry to silence whitespace error 2021-06-05 07:57:31 +02:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
aclocal.m4 Remove configure-time probe for DocBook DTD. 2020-11-30 15:24:13 -05:00
configure Stamp 14beta1. 2021-05-17 16:11:18 -04:00
configure.ac Stamp 14beta1. 2021-05-17 16:11:18 -04:00
COPYRIGHT Update copyright for 2021 2021-01-02 13:06:25 -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/.