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The previous coding in ProcessInterrupts() could lead to idle_in_transaction_session_timeout being ignored, when statement_timeout occurred earlier. The problem was that ProcessInterrupts() would return before processing the transaction timeout if QueryCancelPending was set while QueryCancelHoldoffCount != 0 - which is the case when reading new commands from the client. Ergo when the idle transaction timeout would hit. Fix that by removing the early return. Alternatively the transaction timeout code could have been moved up, but that early return seems like an issue that could hit other cases too. Author: Lukas Fittl Bug: #14821 Discussion: https://www.postgresql.org/message-id/20170921010956.17345.61461%40wrigleys.postgresql.org https://www.postgresql.org/message-id/CAP53PkxQnv3OWJpyNPGJYT62uY=n1=2CF_Lpc6gVOFnc0-gazw@mail.gmail.com Backpatch: 9.6-, where idle_in_transaction_session_timeout was introduced.
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/.