mirror of
https://github.com/postgres/postgres.git
synced 2026-06-06 23:59:45 -04:00
Peter Eisentraut
3d092fe540
ALTER SEQUENCE can do nontransactional changes to the sequence (RESTART clause) and transactional updates to the pg_sequence catalog (most other clauses). When just calling RESTART, the code would still needlessly do a catalog update without any changes. This would entangle that operation in the concurrency issues of a catalog update (causing either locking or concurrency errors, depending on how that issue is to be resolved). Fix by keeping track during options parsing whether a catalog update is needed, and skip it if not. Reported-by: Jason Petersen <jason@citusdata.com>
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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.