8c58624df4
The DDLs like Refresh Materialized views that generate lots of temporary data due to rewrite rules may not be processed by output plugins (for example pgoutput). So, we won't send keep-alive messages for a long time while processing such commands and that can lead the subscriber side to timeout. We have previously fixed a similar case for large transactions in commit f95d53eded where the output plugin filters all or most of the changes but missed to handle the DDLs. We decided not to backpatch this as this adds a new callback in the existing exposed structure and moreover, users can increase the wal_sender_timeout and wal_receiver_timeout to avoid this problem. Author: Wang wei, Hou Zhijie Reviewed-by: Peter Smith, Ashutosh Bapat, Shi yu, Amit Kapila Discussion: https://postgr.es/m/OS3PR01MB6275478E5D29E4A563302D3D9E2B9@OS3PR01MB6275.jpnprd01.prod.outlook.com Discussion: https://postgr.es/m/CAA5-nLARN7-3SLU_QUxfy510pmrYK6JJb=bk3hcgemAM_pAv+w@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/.