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The test did not wait for all the subscriptions to have caught up when dropping the subscription "tab_copy". In a slow environment, it could be possible for the replay of the COMMIT PREPARED transaction "mygid" to not be confirmed yet, causing one prepared transaction to be left around before moving to the next steps of the test. One failure noticed is a transaction found in pg_prepared_xacts for the cases where copy_data = false and two_phase = true, but there should be none after dropping the subscription. As an extra safety measure, a check is added before dropping the subscription, scanning pg_prepared_xacts to make sure that no prepared transactions are left once both subscriptions have caught up. Issue introduced by |
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| README.git | ||
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/.