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Tom Lane f33a178a34 Doc: improve and centralize the documentation for OID alias types.
Previously, a lot of information about type regclass existed only
in the discussion of the sequence functions.  Maybe that made sense
in the beginning, because I think originally those were the only
functions taking regclass.  But it doesn't make sense anymore.
Move that material to the "Object Identifier Types" section in
datatype.sgml, generalize it to talk about the other reg* types
as well, and add more examples.

Per bug #16991 from Federico Caselli.

Discussion: https://postgr.es/m/16991-bcaeaafa17e0a723@postgresql.org
2021-05-05 11:26:48 -04:00
config Update config.guess and config.sub 2021-04-21 16:33:40 +02:00
contrib Disable cache clobber to avoid breaking postgres_fdw termination test. 2021-05-04 13:36:26 -04:00
doc Doc: improve and centralize the documentation for OID alias types. 2021-05-05 11:26:48 -04:00
src GUC description improvements for clarity 2021-05-05 08:18:22 +02:00
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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/.