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Alvaro Herrera 0c2377152f DETACH PARTITION: hold locks on indexes until end of transaction 
When a partition is detached from its parent, we acquire locks on all
attached indexes to also detach them ... but we release those locks
immediately.  This is a violation of the policy of keeping locks on user
objects to the end of the transaction.  Bug introduced in 8b08f7d482.

It's unclear that there are any ill effects possible, but it's clearly
wrong nonetheless.  It's likely that bad behavior *is* possible, but
mostly because the relation that the index is for is only locked with
AccessShareLock, which is an older bug that shall be fixed separately.

While touching that line of code, close the index opened with
index_open() using index_close() instead of relation_close().
No difference in practice, but let's be consistent.

Unearthed by Robert Haas.

Discussion: https://postgr.es/m/CA+TgmoYruJQ+2qnFLtF1xQtr71pdwgfxy3Ziy-TxV28M6pEmyA@mail.gmail.com
2018-12-20 10:58:22 -03:00
config Update config/ax_pthread.m4 to latest upstream version. 2018-11-19 15:05:33 -05:00
contrib Update sepgsql regression test results for commit ca4103025. 2018-12-18 11:40:10 -05:00
doc Make type "name" collation-aware. 2018-12-19 17:46:25 -05:00
src DETACH PARTITION: hold locks on indexes until end of transaction 2018-12-20 10:58:22 -03:00
.dir-locals.el Update documentation editor setup instructions 2018-07-13 21:23:41 +02:00
.gitattributes Remove contrib/tsearch2. 2017-02-13 11:06:11 -05:00
.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 Drop support for getting signal descriptions from sys_siglist[]. 2018-12-17 13:50:16 -05:00
configure.in Drop support for getting signal descriptions from sys_siglist[]. 2018-12-17 13:50:16 -05:00
COPYRIGHT Update copyright for 2018 2018-01-02 23:30:12 -05:00
GNUmakefile.in Remove unwanted "garbage cleanup" logic in Makefiles. 2018-08-08 14:32:29 -04:00
HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
Makefile Fix non-GNU makefiles for AIX make. 2017-11-30 00:57:22 -08:00
README Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
README.git Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -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/.