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The original coding failed miserably for BLCKSZ of 4K or less, as reported by Josh Kupershmidt. With the present design for text indexes, a given inner tuple could have up to 256 labels (requiring either 3K or 4K bytes depending on MAXALIGN), which means that we can't positively guarantee no failures for smaller blocksizes. But we can at least make it behave sanely so long as there are few enough labels to fit on a page. Considering that btree is also more prone to "index tuple too large" failures when BLCKSZ is small, it's not clear that we should expend more work than this on this case. |
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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. 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/.