53d3daa491
There is at least one report in the field of storing millions of integers in arrays, so it seems like a good time to specialize intarray's qsort function. In doing so, streamline the comparators: Previously there were three, two for each direction for sorting and one passed to qunique_arg. To preserve the early exit in the case of descending input, pass the direction as an argument to the comparator. This requires giving up duplicate detection, which previously allowed skipping the qunique_arg() call. Testing showed no regressions this way. In passing, get rid of nearby checks that the input has at least two elements, since preserving them would make some macros less readable. These are not necessary for correctness, and seem like premature optimizations. Author: Andrey M. Borodin <x4mmm@yandex-team.ru> Discussion: https://postgr.es/m/098A3E67-E4A6-4086-9C66-B1EAEB1DFE1C@yandex-team.ru
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/.