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These format codes produce or consume strings of digits, so they should be labeled with is_digit = true, but they were not. This has effect in only one place, where is_next_separator() is checked to see if the preceding format code should slurp up all the available digits. Thus, with a format such as '...SSFF3' with remaining input '12345', the 'SS' code would consume all five digits (and then complain about seconds being out of range) when it should eat only two digits. Per report from Nick Davies. This bug goes back to d589f9446 where the FFn codes were introduced, so back-patch to v13. Discussion: https://postgr.es/m/AM8PR08MB6356AC979252CFEA78B56678B6312@AM8PR08MB6356.eurprd08.prod.outlook.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. 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/.