Previously, if an infinite value was passed to date_trunc(), then the same infinite value would always be returned regardless of the field unit given by the caller. This commit updates the function so that an error is returned when an invalid unit is passed to date_trunc() with an infinite value. This matches the behavior of date_trunc() with a finite value and date_part() with an infinite value, making the handling of interval, timestamp and timestamptz more consistent across the board for these two functions. Some tests are added to cover all these new failure cases, with an unsupported unit and infinite values for the three data types. There were no test cases in core that checked all these patterns up to now. Author: Joseph Koshakow Discussion: https://postgr.es/m/CAAvxfHc4084dGzEJR0_pBZkDuqbPGc5wn7gK_M0XR_kRiCdUJQ@mail.gmail.com
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.
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