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Previously the values such as '100$%$#$#', '9,223,372,' were accepted and treated as valid integers for postgres_fdw options batch_size and fetch_size. Whereas this is not the case with fdw_startup_cost and fdw_tuple_cost options for which an error is thrown. This was because endptr was not used while converting strings to integers using strtol. This commit changes the logic so that it uses parse_int function instead of strtol as it serves the purpose by returning false in case if it is unable to convert the string to integer. Note that this function also rounds off the values such as '100.456' to 100 and '100.567' or '100.678' to 101. While on this, use parse_real for fdw_startup_cost and fdw_tuple_cost options. Since parse_int and parse_real are being used for reloptions and GUCs, it is more appropriate to use in postgres_fdw rather than using strtol and strtod directly. Back-patch to v14. Author: Bharath Rupireddy Reviewed-by: Ashutosh Bapat, Tom Lane, Kyotaro Horiguchi, Fujii Masao Discussion: https://postgr.es/m/CALj2ACVMO6wY5Pc4oe1OCgUOAtdjHuFsBDw8R5uoYR86eWFQDA@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. 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/.