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Tom Lane 65eb2d00c6 Acquire locks on views in AcquirePlannerLocks, too. Commit `47bb9db75` taught AcquireExecutorLocks to re-acquire locks on views using data from their RTE_SUBQUERY replacements, but it now seems like we should make AcquirePlannerLocks do the same. In this way, if a view has been redefined, we will notice that a bit earlier while checking validity of a cached plan and thereby avoid some wasted work. Report and patch by Amit Langote. Discussion: https://postgr.es/m/CA+HiwqH0xZOQ+GQAdKeckY1R4NOeHdzhtfxkAMJLSchpapNk5w@mail.gmail.com		2023-04-05 15:56:35 -04:00
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README
README.git

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/.