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When tsearch was implemented I did several mistakes in hostname/email definition rules: 1) allow underscore in hostname what prohibited by RFC 2) forget to allow leading digits separated by hyphen (like 123-x.com) in hostname 3) do no allow underscore/hyphen after leading digits in localpart of email Artur's patch resolves two last issues, but by the way allows hosts name like 123_x.com together with 123-x.com. RFC forbids underscore usage in hostname but pg allows that since initial tsearch version in core, although only for non-digits. Patch syncs support digits and nondigits in both hostname and email. Forbidding underscore in hostname may break existsing usage of tsearch and, anyhow, it should be done by separate patch. Author: Artur Zakirov BUG: #13964 |
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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. 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/.