Tom Lane d2914c38b6 Delete pg_statistics rows for a relation during heap_destroy_with_catalog.
By dropping stats rows here, we eliminate the need for VACUUM to do a
wholesale remove of stats rows.  Before, pg_statistics was wiped clean
at the start of VACUUM, ensuring poor planning results for any backends
running in parallel until VACUUM got around to rebuilding the stats for
the relations they are accessing.
1999-11-28 02:03:04 +00:00
1999-11-26 04:38:59 +00:00
1999-10-12 16:04:20 +00:00
1999-07-18 18:27:05 +00:00
1999-07-10 16:28:02 +00:00

 
PostgreSQL Data Base Management System (formerly known as Postgres, then
as Postgres95).
  
This directory contains the development version of 6.6 of the PostgreSQL
database server.  The server is not ANSI SQL compliant, but it gets
closer with every release.  After you unzip and untar the distribution
file, look at file INSTALL for the installation notes and file HISTORY
for the changes.

The latest version of this software may be obtained at
ftp://ftp.postgresql.org/pub/.  For more information look at our WWW
home page located at http://www.postgreSQL.org/.

PostgreSQL is not public domain software.  It is copyrighted by the
University of California but may be used according to the licensing
terms of the the copyright below:

------------------------------------------------------------------------

POSTGRES95 Data Base Management System (formerly known as Postgres, then
as Postgres95).

Copyright (c) 1994-7 Regents of the University of California

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose, without fee, and without a written agreement
is hereby granted, provided that the above copyright notice and this
paragraph and the following two paragraphs appear in all copies.

IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
Description
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