526fe0d799
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 |
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