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Tom Lane a40fa613b5 Add some infrastructure for contrib/pg_stat_statements. 
Add a queryId field to Query and PlannedStmt.  This is not used by the
core backend, except for being copied around at appropriate times.
It's meant to allow plug-ins to track a particular query forward from
parse analysis to execution.

The queryId is intentionally not dumped into stored rules (and hence this
commit doesn't bump catversion).  You could argue that choice either way,
but it seems better that stored rule strings not have any dependency
on plug-ins that might or might not be present.

Also, add a post_parse_analyze_hook that gets invoked at the end of
parse analysis (but only for top-level analysis of complete queries,
not cases such as analyzing a domain's default-value expression).
This is mainly meant to be used to compute and assign a queryId,
but it could have other applications.

Peter Geoghegan
 		2012-03-27 15:17:40 -04:00
config Fix configure's search for collateindex.pl. 2012-03-22 00:46:03 -04:00
contrib Silence compiler warning about uninitialized variable. 2012-03-27 14:47:23 -04:00
doc New GUC, track_iotiming, to track I/O timings. 2012-03-27 14:55:02 -04:00
src Add some infrastructure for contrib/pg_stat_statements. 2012-03-27 15:17:40 -04:00
.gitignore Add gitignore for mingw/cygwin build outputs 2011-06-09 18:11:47 +02:00
COPYRIGHT Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
GNUmakefile.in Add isolation test to check-world and installcheck-world 2012-03-05 20:19:20 +02:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Remove useless whitespace at end of lines 2010-11-23 22:34:55 +02:00
README.git Trivial typo fix. 2010-09-21 14:16:00 -04:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure Fix configure's search for collateindex.pl. 2012-03-22 00:46:03 -04:00
configure.in Allow MinGW builds to use standardly-named OpenSSL libraries. 2012-02-23 15:05:08 -05:00

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:

	http://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.  Changes between all PostgreSQL releases are recorded in the
file HISTORY.  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
http://www.postgresql.org/download/.  For more information look at our
web site located at http://www.postgresql.org/.