9758174e2e
This patch provides the additional logging information in the following conflict scenarios while applying changes: insert_exists: Inserting a row that violates a NOT DEFERRABLE unique constraint. update_differ: Updating a row that was previously modified by another origin. update_exists: The updated row value violates a NOT DEFERRABLE unique constraint. update_missing: The tuple to be updated is missing. delete_differ: Deleting a row that was previously modified by another origin. delete_missing: The tuple to be deleted is missing. For insert_exists and update_exists conflicts, the log can include the origin and commit timestamp details of the conflicting key with track_commit_timestamp enabled. update_differ and delete_differ conflicts can only be detected when track_commit_timestamp is enabled on the subscriber. We do not offer additional logging for exclusion constraint violations because these constraints can specify rules that are more complex than simple equality checks. Resolving such conflicts won't be straightforward. This area can be further enhanced if required. Author: Hou Zhijie Reviewed-by: Shveta Malik, Amit Kapila, Nisha Moond, Hayato Kuroda, Dilip Kumar Discussion: https://postgr.es/m/OS0PR01MB5716352552DFADB8E9AD1D8994C92@OS0PR01MB5716.jpnprd01.prod.outlook.com |
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| configure | ||
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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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.