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Tom Lane f2343653f5 Remove more redundant relation locking during executor startup. 
We already have appropriate locks on every relation listed in the
query's rangetable before we reach the executor.  Take the next step
in exploiting that knowledge by removing code that worries about
taking locks on non-leaf result relations in a partitioned table.

In particular, get rid of ExecLockNonLeafAppendTables and a stanza in
InitPlan that asserts we already have locks on certain such tables.

In passing, clean up some now-obsolete comments in InitPlan.

Amit Langote, reviewed by David Rowley and Jesper Pedersen,
and whacked around a bit more by me

Discussion: https://postgr.es/m/468c85d9-540e-66a2-1dde-fec2b741e688@lab.ntt.co.jp
2018-10-06 15:12:51 -04:00
config Try another way to detect the result type of strerror_r(). 2018-09-26 18:23:13 -04:00
contrib Allow btree comparison functions to return INT_MIN. 2018-10-05 16:01:29 -04:00
doc doc: update PG 11 release notes 2018-10-05 17:20:24 -04:00
src Remove more redundant relation locking during executor startup. 2018-10-06 15:12:51 -04:00
.dir-locals.el Update documentation editor setup instructions 2018-07-13 21:23:41 +02:00
.gitattributes
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
aclocal.m4 Add configure infrastructure (--with-llvm) to enable LLVM support. 2018-03-20 17:26:25 -07:00
configure Make assorted performance improvements in snprintf.c. 2018-10-03 10:18:15 -04:00
configure.in Make assorted performance improvements in snprintf.c. 2018-10-03 10:18:15 -04:00
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
Makefile Fix non-GNU makefiles for AIX make. 2017-11-30 00:57:22 -08:00
README
README.git

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/.