073bd83277
test_regex_utf8 decides whether to run by looking at the database encoding alone, but two of its cases, [[:graph:]] and [[:print:]] over E'xᔀሷ', depend on the ctype as well. In a database with encoding UTF8 and locale C they match just the x, because isgraph() and isprint() are false for anything outside ASCII, and the file fails. No buildfarm animal builds such a cluster, which is why this went unnoticed, and why the to_date() crash in 18.5 went undetected for want of exactly this coverage. A pending buildfarm client change will let an animal be configured that way. Fix by giving the two cases an explicit collation, so that they exercise a fixed Unicode ctype instead of whatever the database happened to be initialized with. test_regex() already passes its input collation down to the regex compiler. The expected results are unchanged; only the echoed queries differ. Backpatch-through: 17 (15 and 16 get a different fix) Reviewed-by: Jonathan Gonzalez V. <jonathan@abdiel.eu>
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/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/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/.