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the cheapest-total inner path as a new candidate while truncating the sort key list, if it already matched the full sort key list. This is too much of a corner case to be worth back-patching, since it's unusual for the cheapest total path to be sorted, and anyway no real harm is done (except in JOIN_SEMI/ANTI cases where cost_mergejoin is a bit broken at the moment). But it wasn't behaving as intended, so fix it. Noted while examining a test case from Kevin Grittner. This error doesn't explain his issue, but it does explain why "set enable_seqscan = off" seemed to reproduce it for me. |
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| configure | ||
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| COPYRIGHT | ||
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| README.CVS | ||
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/.