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| author | Daniel Gustafsson <dgustafsson@postgresql.org> | 2023-11-06 09:38:29 +0100 |
|---|---|---|
| committer | Daniel Gustafsson <dgustafsson@postgresql.org> | 2023-11-06 09:38:29 +0100 |
| commit | 526fe0d79914b2dfcfd79effd1ab26ff62469248 (patch) | |
| tree | 7d25dbd45a49eeba488ae7d1f57520babda7e336 /src/include/utils/xml.h | |
| parent | 7b5275eec3a50d55f5750357b8a223cf5f0bb59f (diff) | |
| download | postgresql-526fe0d79914b2dfcfd79effd1ab26ff62469248.tar.gz postgresql-526fe0d79914b2dfcfd79effd1ab26ff62469248.zip | |
Add XMLText function (SQL/XML X038)
This function implements the standard XMLTest function, which
converts text into xml text nodes. It uses the libxml2 function
xmlEncodeSpecialChars to escape predefined entities (&"<>), so
that those do not cause any conflict when concatenating the text
node output with existing xml documents.
This also adds a note in features.sgml about not supporting
XML(SEQUENCE). The SQL specification defines a RETURNING clause
to a set of XML functions, where RETURNING CONTENT or RETURNING
SEQUENCE can be defined. Since PostgreSQL doesn't support
XML(SEQUENCE) all of these functions operate with an
implicit RETURNING CONTENT.
Author: Jim Jones <jim.jones@uni-muenster.de>
Reviewed-by: Vik Fearing <vik@postgresfriends.org>
Discussion: https://postgr.es/m/86617a66-ec95-581f-8d54-08059cca8885@uni-muenster.de
Diffstat (limited to 'src/include/utils/xml.h')
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