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Tom Lane 80dc07aa36 Simplify loop logic in nodeIncrementalSort.c. 
The inner loop in switchToPresortedPrefixMode() can be implemented
as a conventional integer-counter for() loop, removing a couple of
redundant boolean state variables.  The old logic here was a remnant
of earlier development, but as things now stand there's no reason
for extra complexity.

Also, annotate the test case added by 82e0e2930 to explain why it
manages to hit the corner case fixed in that commit, and add an
EXPLAIN to verify that it's creating an incremental-sort plan.

Back-patch to v13, like the previous patch.

James Coleman and Tom Lane

Discussion: https://postgr.es/m/16846-ae49f51ac379a4cb@postgresql.org
2021-02-15 10:17:58 -05:00
config
contrib Fix permission checks on constraint violation errors on partitions. 2021-02-08 11:01:55 +02:00
doc Default to wal_sync_method=fdatasync on FreeBSD. 2021-02-15 16:05:42 +13:00
src Simplify loop logic in nodeIncrementalSort.c. 2021-02-15 10:17:58 -05:00
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configure Stamp 13.2. 2021-02-08 16:54:11 -05:00
configure.in Stamp 13.2. 2021-02-08 16:54:11 -05:00
COPYRIGHT Update copyright for 2021 2021-01-02 13:06:24 -05:00
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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/.