74a1d4fe7c
Previously, renaming a table, sequence, view, index, foreign table, column, or trigger checked permissions before locking the object, which meant that if permissions were revoked during the lock wait, we would still allow the operation. Similarly, if the original object is dropped and a new one with the same name is created, the operation will be allowed if we had permissions on the old object; the permissions on the new object don't matter. All this is now fixed. Along the way, attempting to rename a trigger on a foreign table now gives the same error message as trying to create one there in the first place (i.e. that it's not a table or view) rather than simply stating that no trigger by that name exists. Patch by me; review by Noah Misch.
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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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/.