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e9f9ebfe65
I noticed the "vacuum" regression test taking really significantly longer than it used to on a slow machine. Investigation pointed the finger at commit e415b469b33ba328765e39fd62edcd28f30d9c3c, which added creation of an index using an extremely expensive index function. That function was evidently meant to be applied only twice ... but the test re-used an existing test table, which up till a couple lines before that had had over two thousand rows. Depending on timing of the concurrent regression tests, the intervening VACUUMs might have been unable to remove those recently-dead rows, and then the index build would need to create index entries for them too, leading to the wrap_do_analyze() function being executed 2000+ times not twice. Avoid this by using a different table that is guaranteed to have only the intended two rows in it. Back-patch to 9.0, like the commit that created the problem.
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/.