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Some places rejected individual tokens longer than MAXSTRLEN, while others rejected ones longer than MAXSTRLEN-1. The data structure is perfectly capable of handling MAXSTRLEN, so there's nothing wrong with using the looser bound. Moreover, as things stand there is a dump/reload hazard: some code paths permit construction of a tsvector or tsquery that would later be rejected by tsvectorin or tsqueryin. So standardize on using MAXSTRLEN. Identical remarks apply to MAXSTRPOS (the total data length), so fix that too. Back-patch, in hopes of avoiding cases where a value acceptable to one supported release is not acceptable to another. Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Zsolt Parragi <zsolt.parragi@percona.com> Discussion: https://postgr.es/m/CAN4CZFNYQo4zfbRR435uD0vSfuy5y7dnFOXDfKr9zYoL1JnAxA@mail.gmail.com Backpatch-through: 14
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: https://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 https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.