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Some replication slot manipulations (logical decoding via SQL, advancing) were failing an assertion when releasing a slot in single-user mode, because active_pid was not set in a ReplicationSlot when its slot is acquired. ReplicationSlotAcquire() has some logic to be able to work with the single-user mode. This commit sets ReplicationSlot->active_pid to MyProcPid, to let the slot-related logic fall-through, considering the single process as the one holding the slot. Some TAP tests are added for various replication slot functions with the single-user mode, while on it, for slot creation, drop, advancing, copy and logical decoding with multiple slot types (temporary, physical vs logical). These tests are skipped on Windows, as direct calls of postgres --single would fail on permission failures. There is no platform-specific behavior that needs to be checked, so living with this restriction should be fine. The CI is OK with that, now let's see what the buildfarm tells. Author: Hayato Kuroda <kuroda.hayato@fujitsu.com> Reviewed-by: Paul A. Jungwirth <pj@illuminatedcomputing.com> Reviewed-by: Mutaamba Maasha <maasha@gmail.com> Discussion: https://postgr.es/m/OSCPR01MB14966ED588A0328DAEBE8CB25F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com Backpatch-through: 13 |
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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/.