a0899c0a97
Point out that savepoint commands cannot be issued in PL/pgSQL, and suggest that exception blocks can usually be used instead. Add a caveat to the discussion of cursor loops vs. transactions, pointing out that any locks taken by the cursor query will be lost at COMMIT. This is implicit in what's already said, but the existing text leaves the distinct impression that the auto-hold behavior is transparent, which it's not really. Per a couple of recent complaints (one unsigned, and one in bug #18531 from Dzmitry Jachnik). Back-patch to v17, just so this makes it into current docs in less than a year-and-a-half. Discussion: https://postgr.es/m/172076354433.736586.14347210271966220018@wrigleys.postgresql.org Discussion: https://postgr.es/m/18531-c6dddd33b8555fd2@postgresql.org
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/.