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If a view is split into CREATE TABLE + CREATE RULE to break a circular dependency, then any triggers on the view must be dumped/reloaded after the CREATE RULE; else the backend may reject the CREATE TRIGGER because it's the wrong type of trigger for a plain table. This works all right in plain dump/restore because of pg_dump's sorting heuristic that places triggers after rules. However, when using parallel restore, the ordering must be enforced by a dependency --- and we didn't have one. Fixing this is a mere matter of adding an addObjectDependency() call, except that we need to be able to find all the triggers belonging to the view relation, and there was no easy way to do that. Add fields to pg_dump's TableInfo struct to remember where the associated TriggerInfo struct(s) are. Per bug report from Dennis Kögel. The failure can be exhibited at least as far back as 9.1, so back-patch to all supported branches. |
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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: 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/.