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Let table AM define custom reloptions for its tables. This allows specifying AM-specific parameters by the WITH clause when creating a table. The reloptions, which could be used outside of table AM, are now extracted into the CommonRdOptions data structure. These options could be by decision of table AM directly specified by a user or calculated in some way. The new test module test_tam_options evaluates the ability to set up custom reloptions and calculate fields of CommonRdOptions on their base. The code may use some parts from prior work by Hao Wu. Discussion: https://postgr.es/m/CAPpHfdurb9ycV8udYqM%3Do0sPS66PJ4RCBM1g-bBpvzUfogY0EA%40mail.gmail.com Discussion: https://postgr.es/m/AMUA1wBBBxfc3tKRLLdU64rb.1.1683276279979.Hmail.wuhao%40hashdata.cn Reviewed-by: Reviewed-by: Pavel Borisov, Matthias van de Meent, Jess Davis
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/.