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Tom Lane 92316a4582 In pg_dump, use simplehash.h to look up dumpable objects by OID. 
Create a hash table that indexes dumpable objects by CatalogId
(that is, catalog OID + object OID).  Use this to replace the
former catalogIdMap array, as well as various other single-
catalog index arrays, and also the extension membership map.

In principle this should be faster for databases with many objects,
since lookups are now O(1) not O(log N).  However, it seems that these
lookups are pretty much negligible in context, so that no overall
performance change can be measured.  But having only one lookup
data structure to maintain makes the code simpler and more flexible,
so let's do it anyway.

Discussion: https://postgr.es/m/2595220.1634855245@sss.pgh.pa.us
 		2021-10-22 17:19:03 -04:00
config Adjust configure to insist on Perl version >= 5.8.3. 2021-10-07 14:26:17 -04:00
contrib postgres_fdw: Move comments about elog level in (sub)abort cleanup. 2021-10-13 19:00:00 +09:00
doc Remove unused wait events. 2021-10-21 08:01:25 +05:30
src In pg_dump, use simplehash.h to look up dumpable objects by OID. 2021-10-22 17:19:03 -04:00
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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/.