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251cf2e27b
Correctly process nodes of more types than previously. In some cases, nodes were being ignored (nothing was output); in other cases, trying to return them resulted in errors about unrecognized nodes. In yet other cases, necessary escaping (of XML special characters) was not being done. Fix all those (as far as the authors could find) and add regression tests cases verifying the new behavior. I (Álvaro) was of two minds about backpatching these changes. They do seem bugfixes that would benefit most users of the affected functions; but on the other hand it would change established behavior in minor releases, so it seems prudent not to. Authors: Pavel Stehule, Markus Winand, Chapman Flack Discussion: https://postgr.es/m/CAFj8pRA6J25CtAZ2TuRvxK3gat7-bBUYh0rfE2yM7Hj9GD14Dg@mail.gmail.com https://postgr.es/m/8BDB0627-2105-4564-AA76-7849F028B96E@winand.at The elephant in the room as pointed out by Chapman Flack, not fixed in this commit, is that we still have XMLTABLE operating on XPath 1.0 instead of the standard-mandated XQuery (or even its subset XPath 2.0). Fixing that is a major undertaking, however. |
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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: 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/.