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A failure in parsing the interval value defined in the \watch command was silently switched to 1s of interval between two queries, which can be confusing. This commit improves the error handling, and a couple of tests are added to check after: - An incorrect value. - An out-of-range value. - A negative value. A value of zero is able to work now, meaning that there is no interval of time between two queries in a \watch loop. No backpatch is done, as it could break existing applications. Author: Andrey Borodin Reviewed-by: Kyotaro Horiguchi, Nathan Bossart, Michael Paquier Discussion: https://postgr.es/m/CAAhFRxiZ2-n_L1ErMm9AZjgmUK=qS6VHb+0SaMn8sqqbhF7How@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/.