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When ON_ERROR_ROLLBACK is enabled, psql releases a temporary savepoint if it's idle in a valid transaction block after executing a query. But psql doesn't do that after RELEASE or ROLLBACK is executed because a temporary savepoint has already been destroyed in that case. This commit changes psql's ON_ERROR_ROLLBACK so that it doesn't release a temporary savepoint also when COMMIT AND CHAIN is executed. A temporary savepoint doesn't need to be released in that case because COMMIT AND CHAIN also destroys any savepoints defined within the transaction to commit. Otherwise psql tries to release the savepoint that COMMIT AND CHAIN has already destroyed and cause an error "ERROR: savepoint "pg_psql_temporary_savepoint" does not exist". Back-patch to v12 where transaction chaining was added. Reported-by: Arthur Nascimento Author: Arthur Nascimento Reviewed-by: Fujii Masao, Vik Fearing Discussion: https://postgr.es/m/16867-3475744069228158@postgresql.org |
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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/.