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Tom Lane 65aaed22a8 Account for TOAST data while scheduling parallel dumps. 
In parallel mode, pg_dump tries to order the table-data-dumping
jobs with the largest tables first.  However, it was only
consulting the pg_class.relpages value to determine table size.
This ignores TOAST data, and so we could make poor scheduling
decisions in cases where some large tables are mostly TOASTed
data while others have very little.  To fix, add in the relpages
value for the TOAST table as well.

This patch also fixes a potential integer-overflow issue that
could result in poor scheduling on machines where off_t is
only 32 bits wide.  Such platforms are probably extinct in the
wild, but we do still nominally support them, so repair.

Per complaint from Hans Buschmann.

Discussion: https://postgr.es/m/7d7eb6128f40401d81b3b7a898b6b4de@W2012-02.nidsa.loc
2021-12-06 13:23:07 -05:00
config Pacify perlcritic. 2021-11-22 15:57:31 -05:00
contrib Some RELKIND macro refactoring 2021-12-03 14:08:19 +01:00
doc Fix inappropriate uses of PG_GETARG_UINT32() 2021-12-06 13:37:11 +01:00
src Account for TOAST data while scheduling parallel dumps. 2021-12-06 13:23:07 -05:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add .editorconfig 2019-12-18 09:13:13 +01:00
.git-blame-ignore-revs Add another old commit to git-blame-ignore-revs. 2021-11-03 17:34:19 -07:00
.gitattributes gitattributes: Add new entry to silence whitespace error 2021-06-05 07:57:31 +02:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
aclocal.m4 Probe $PROVE not $PERL while checking for modules needed by TAP tests. 2021-11-22 12:54:52 -05:00
configure Add configure probe for rl_variable_bind(). 2021-12-02 13:06:27 -05:00
configure.ac Add configure probe for rl_variable_bind(). 2021-12-02 13:06:27 -05:00
COPYRIGHT Update copyright for 2021 2021-01-02 13:06:25 -05:00
GNUmakefile.in add missing tag from commit b8c4261e5e 2021-07-01 15:47:46 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Don't unset MAKEFLAGS in non-GNU Makefile. 2019-06-25 09:36:21 +12:00
README Canonicalize some URLs 2020-02-10 20:47:50 +01:00
README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00

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/.