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Tom Lane a9632830bb Reject "23:59:60.nnn" in datetime input. 
It's intentional that we don't allow values greater than 24 hours,
while we do allow "24:00:00" as well as "23:59:60" as inputs.
However, the range check was miscoded in such a way that it would
accept "23:59:60.nnn" with a nonzero fraction.  For time or timetz,
the stored result would then be greater than "24:00:00" which would
fail dump/reload, not to mention possibly confusing other operations.

Fix by explicitly calculating the result and making sure it does not
exceed 24 hours.  (This calculation is redundant with what will happen
later in tm2time or tm2timetz.  Maybe someday somebody will find that
annoying enough to justify refactoring to avoid the duplication; but
that seems too invasive for a back-patched bug fix, and the cost is
probably unmeasurable anyway.)

Note that this change also rejects such input as the time portion
of a timestamp(tz) value.

Back-patch to v10.  The bug is far older, but to change this pre-v10
we'd need to ensure that the logic behaves sanely with float timestamps,
which is possibly nontrivial due to roundoff considerations.
Doesn't really seem worth troubling with.

Per report from Christoph Berg.

Discussion: https://postgr.es/m/20200520125807.GB296739@msg.df7cb.de
2020-06-04 16:42:23 -04:00
config Update config.guess and config.sub 2020-04-30 09:06:49 +02:00
contrib Use CP_SMALL_TLIST for hash aggregate 2020-05-31 14:43:13 +02:00
doc psql: Clean up terminology in \dAp command 2020-06-04 22:09:41 +02:00
src Reject "23:59:60.nnn" in datetime input. 2020-06-04 16:42:23 -04:00
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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/.