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This new function is useful to display a full tree of partitions with a partitioned table given in output, and avoids the need of any complex WITH RECURSIVE query when looking at partition trees which are deep multiple levels. It returns a set of records, one for each partition, containing the partition's name, its immediate parent's name, a boolean value telling if the relation is a leaf in the tree and an integer telling its level in the partition tree with given table considered as root, beginning at zero for the root, and incrementing by one each time the scan goes one level down. Author: Amit Langote Reviewed-by: Jesper Pedersen, Michael Paquier, Robert Haas Discussion: https://postgr.es/m/8d00e51a-9a51-ad02-d53e-ba6bf50b2e52@lab.ntt.co.jp |
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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/.