The documentation said that the bounds of new partitions should not overlap and that their combined bounds should equal the bounds of the split partition. That is misleading when a new DEFAULT partition is specified, because the explicit partitions may cover only part of the split partition while the DEFAULT partition covers the rest. Clarify that new non-DEFAULT partition bounds must not overlap with other new or existing partitions and must be contained within the bounds of the split partition. Also state that the combined bounds must exactly match the split partition only when no new DEFAULT partition is specified. While here, improve nearby wording about hash-partitioned target tables and splitting a DEFAULT partition with the same partition name. Author: Chao Li <lic@highgo.com> Reviewed-by: Alexander Korotkov <aekorotkov@gmail.com> Discussion: https://postgr.es/m/C18878AB-DEB2-4A61-9995-A035DD644B81@gmail.com |
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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/.