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algorithm, replacing the original intention of a one-pass search, which had been hacked up over time to be partially two-pass in hopes of handling various corner cases better. It still wasn't quite there, especially as regards emitting unwanted NOTICE messages. More importantly, this approach lets us fix a number of open bugs concerning concurrent DROP scenarios, because we can take locks during the first pass and avoid traversing to dependent objects that were just deleted by someone else. There is more that can be done here, but I'll go ahead and commit the base patch before working on the options.
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/.