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In the case where the target timestamp is before the origin timestamp and their difference is already an exact multiple of the stride, the code incorrectly subtracted the stride anyway. Also detect several integer-overflow cases that previously produced bogus results. (The submitted patch tried to avoid overflow, but I'm not convinced it's right, and problematic cases are so far out of the plausibly-useful range that they don't seem worth sweating over. Let's just use overflow-detecting arithmetic and throw errors.) timestamp_bin() and timestamptz_bin() are basically identical and so had identical bugs. Fix both. Report and patch by Moaaz Assali, adjusted some by me. Back-patch to v14 where date_bin() was introduced. Discussion: https://postgr.es/m/CALkF+nvtuas-2kydG-WfofbRSJpyODAJWun==W-yO5j2R4meqA@mail.gmail.com |
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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. 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/.