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Tom Lane 6d07cbc509 Fix SP-GiST scan initialization logic for binary-compatible cases. Commit `ac9099fc1` rearranged the logic in spgGetCache() that determines the index's attType (nominal input data type) and leafType (actual type stored in leaf index tuples). Turns out this broke things for the case where (a) the actual input data type is different from the nominal type, (b) the opclass's config function leaves leafType defaulted, and (c) the opclass has no "compress" function. (b) caused us to assign the actual input data type as leafType, and then since that's not attType, we complained that a "compress" function is required. For non-polymorphic opclasses, condition (a) arises in binary-compatible cases, such as using SP-GiST text_ops for a varchar column, or using any opclass on a domain over its nominal input type. To fix, use attType for leafType when the index's declared column type is different from but binary-compatible with attType. Do this only in the defaulted-leafType case, to avoid overriding any explicit selection made by the opclass. Per bug #17294 from Ilya Anfimov. Back-patch to v14. Discussion: https://postgr.es/m/17294-8f6c7962ce877edc@postgresql.org		2021-11-20 14:29:56 -05:00
config	Remove configure-time thread safety checking (thread_test.c).	2021-07-24 12:16:40 -04:00
contrib	Avoid some other O(N^2) hazards in list manipulation.	2021-11-01 16:24:40 -04:00
doc	Doc: add see-also references to CREATE PUBLICATION.	2021-11-17 13:34:41 +01:00
src	Fix SP-GiST scan initialization logic for binary-compatible cases.	2021-11-20 14:29:56 -05:00
.dir-locals.el	Make Emacs perl-mode indent more like perltidy.	2019-01-13 11:32:31 -08:00
.editorconfig	Add .editorconfig	2019-12-18 09:13:13 +01:00
.git-blame-ignore-revs	Add list of ignorable pgindent commits for git-blame.	2021-06-22 09:06:32 -07:00
.gitattributes	gitattributes: Add new entry to silence whitespace error	2021-06-05 07:57:31 +02:00
.gitignore	Support for optimizing and emitting code in LLVM JIT provider.	2018-03-22 11:05:22 -07:00
aclocal.m4	Remove configure-time probe for DocBook DTD.	2020-11-30 15:24:13 -05:00
configure	Use appropriate -Wno-warning switches when compiling bitcode.	2021-11-18 14:50:13 -05:00
configure.ac	Use appropriate -Wno-warning switches when compiling bitcode.	2021-11-18 14:50:13 -05:00
COPYRIGHT	Update copyright for 2021	2021-01-02 13:06:25 -05:00
GNUmakefile.in	add missing tag from commit `b8c4261e5e`	2021-07-01 15:47:47 -04:00
HISTORY	Canonicalize some URLs	2020-02-10 20:47:50 +01:00
Makefile	Don't unset MAKEFLAGS in non-GNU Makefile.	2019-06-25 09:36:21 +12:00
README	Canonicalize some URLs	2020-02-10 20:47:50 +01:00
README.git	Canonicalize some URLs	2020-02-10 20:47:50 +01:00

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/.