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Peter Eisentraut e5f1bb92cf Simplify index tuple descriptor initialization 
We have two code paths for initializing the tuple descriptor for a new
index: For a normal index, we copy the tuple descriptor from the table
and reset a number of fields that are not applicable to indexes.  For an
expression index, we make a blank tuple descriptor and fill in the
needed fields based on the provided expressions.  As pg_attribute has
grown over time, the number of fields that we need to reset in the first
case is now bigger than the number of fields we actually want to copy,
so it's sensible to do it the other way around: Make a blank descriptor
and copy just the fields we need.  This also allows more code sharing
between the two branches, and it avoids having to touch this code for
almost every unrelated change to the pg_attribute structure.

Reviewed-by: Arthur Zakirov <a.zakirov@postgrespro.ru>
 		2018-09-13 08:22:03 +02:00
config Remove test for VA_ARGS, implied by C99. 2018-08-24 10:41:45 -07:00
contrib Remove ruleutils.c's special case for BIT [VARYING] literals. 2018-09-11 16:32:25 -04:00
doc Add PQresultMemorySize function to report allocated size of a PGresult. 2018-09-11 18:45:12 -04:00
src Simplify index tuple descriptor initialization 2018-09-13 08:22:03 +02:00
.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
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
aclocal.m4 Add configure infrastructure (--with-llvm) to enable LLVM support. 2018-03-20 17:26:25 -07:00
configure Refactor dlopen() support 2018-09-06 11:33:04 +02:00
configure.in Refactor dlopen() support 2018-09-06 11:33:04 +02:00

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/.