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Tom Lane ec28808ba8 Fix ginEntryInsert's counting of GIN leaf tuples. 
As the code stands, nEntries counts the number of ginEntryInsert()
calls, so that's what you end up with at the end of a GIN index build.
However, ginvacuumcleanup() recomputes nEntries as the number of
surviving leaf tuples, and that's generally consistent with the way that
gincostestimate() uses the value.  So let's clearly define nEntries
as the number of leaf tuples, and therefore adjust ginEntryInsert() to
increment it only when we make a new one, not when we add TIDs into an
existing tuple or posting tree.

In practice this inconsistency probably has little impact, so I don't
feel a need to back-patch.

Insung Moon and Keisuke Kuroda

Discussion: https://postgr.es/m/CAEMmqBuH_O-oXL+3_ArQ6F5cJ7kXVow2SGQB3HRacku_T+xkmA@mail.gmail.com
 		2019-11-04 14:16:42 -05:00
config Simplify PGAC_STRUCT_TIMEZONE Autoconf macro 2019-10-07 16:47:23 +02:00
contrib Fix PG_GETARG_SEG_P() definition. 2019-11-03 10:57:49 -05:00
doc Doc: Add missing step for pg_stat_progress_cluster 2019-10-28 14:23:42 +09:00
src Fix ginEntryInsert's counting of GIN leaf tuples. 2019-11-04 14:16:42 -05:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.gitattributes Add XSL stylesheet to fix up SVG files 2019-06-19 21:26:42 +02:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
COPYRIGHT Update copyright for 2019 2019-01-02 12:44:25 -05:00
GNUmakefile.in Add "headerscheck" script to test header-file compilability under C. 2019-08-19 14:22:56 -04:00
HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
Makefile Don't unset MAKEFLAGS in non-GNU Makefile. 2019-06-25 09:36:21 +12:00
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 Fix configure's AC_CHECK_DECLS tests to work correctly with clang. 2018-11-19 12:01:47 -05:00
configure Use CFLAGS_SL while probing linkability of libperl. 2019-10-21 13:52:25 -04:00
configure.in Use CFLAGS_SL while probing linkability of libperl. 2019-10-21 13:52:25 -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/.