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This commit ensures that the wait interval in the replay delay loop waiting for an amount of time defined by recovery_min_apply_delay is correctly handled on reload, recalculating the delay if this GUC value is updated, based on the timestamp of the commit record being replayed. The previous behavior would be problematic for example with replay still waiting even if the delay got reduced or just cancelled. If the apply delay was increased to a larger value, the wait would have just respected the old value set, finishing earlier. Author: Soumyadeep Chakraborty, Ashwin Agrawal Reviewed-by: Kyotaro Horiguchi, Michael Paquier Discussion: https://postgr.es/m/CAE-ML+93zfr-HLN8OuxF0BjpWJ17O5dv1eMvSE5jsj9jpnAXZA@mail.gmail.com Backpatch-through: 9.6
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/.