f2ec57dee9
The loops in ExecHashJoinNewBatch(), ExecHashIncreaseNumBatches(), and ExecHashRemoveNextSkewBucket() are all capable of iterating over many tuples without ever doing a CHECK_FOR_INTERRUPTS, so that the backend might fail to respond to SIGINT or SIGTERM for an unreasonably long time. Fix that. In the case of ExecHashJoinNewBatch(), it seems useful to put the added CHECK_FOR_INTERRUPTS into ExecHashJoinGetSavedTuple() rather than directly in the loop, because that will also ensure that both principal code paths through ExecHashJoinOuterGetTuple() will do a CHECK_FOR_INTERRUPTS, which seems like a good idea to avoid surprises. Back-patch to all supported branches. Tom Lane and Thomas Munro Discussion: https://postgr.es/m/6044.1487121720@sss.pgh.pa.us
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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.