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When compiled with -C ORACLE, ecpg_get_data() had a one-off issue where it would incorrectly store the null terminator byte to str[-1] when varcharsize is 0, which is something that can happen when using SQLDA. This would eat 1 byte from the previous field stored, corrupting the results generated. All the callers of ecpg_get_data() estimate and allocate enough storage for the data received, and the fix of this commit relies on this assumption. Note that this maps to the case where no padding or truncation is required. This issue has been introduced by 3b7ab43 with the Oracle compatibility option, so backpatch down to v11. Author: Kyotaro Horiguchi Discussion: https://postgr.es/m/20230410.173500.440060475837236886.horikyota.ntt@gmail.com Backpatch-through: 11
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/.