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Tom Lane a9a7c2c3e1 Fix input of ISO "extended" time format for types time and timetz. 
Commit 3e1a373e2 missed teaching DecodeTimeOnly the same "ptype"
manipulations it added to DecodeDateTime.  While likely harmless
at the time, it became a problem after 5b3c59535 added an error check
that ptype must be zero once we exit the parsing loop (that is, there
shouldn't be any unused prefixes).  The consequence was that we'd
reject time or timetz input like T12:34:56 (the "extended" format
per ISO 8601-1:2019), even though that still worked in timestamp
input.

Since this is clearly under-tested code, add test cases covering all
the ISO 8601 time formats.  (Note: although 8601 allows just "Thh",
we have never accepted that, and this patch doesn't change that.
I'm content to leave that as-is because it seems too likely to be
a mistake rather than intended input.  If anyone wants to allow
that, it should be a separate patch anyway, and not back-patched.)

Per bug #18470 from David Perez.  Back-patch to v16 where we
broke it.

Discussion: https://postgr.es/m/18470-34fad4c829106848@postgresql.org
2024-05-22 18:22:58 -04:00
config jit: Remove {llvm-config,clang}-N configure probes. 2024-05-16 13:58:25 +12:00
contrib Re-allow planner to use Merge Append to efficiently implement UNION. 2024-05-21 12:44:51 -04:00
doc doc PG 17 relnotes: add Heikki Linnakangas to vacuum item 2024-05-22 17:59:22 -04:00
src Fix input of ISO "extended" time format for types time and timetz. 2024-05-22 18:22:58 -04:00
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README.md

README.md

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/.