f275afc997
A comment in tuplesort.c was claiming that the code was defining INITIAL_MEMTUPSIZE so that it *does not* exceed ALLOCSET_SEPARATE_THRESHOLD, but the code actually ensures that we purposefully *do* exceed ALLOCSET_SEPARATE_THRESHOLD for the initial allocation of the tuples array, as per reasons detailed in the commentary of grow_memtuples(). Also, there's not much need to repeat the mention about ALLOCSET_SEPARATE_THRESHOLD in each location where INITIAL_MEMTUPSIZE is used, so remove those comments. Author: ChangAo Chen <cca5507@qq.com> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Reviewed-by: David G. Johnston <david.g.johnston@gmail.com> Discussion: https://postgr.es/m/tencent_6FA14F85D6B5B5291532D6789E07F4765C08%40qq.com
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.