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| author | Bruce Momjian <bruce@momjian.us> | 2018-04-02 16:41:46 -0400 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2018-04-02 16:41:46 -0400 |
| commit | efa04da6570577bddac7498c847efb25ba02930a (patch) | |
| tree | 0a7961d0f2cbfd0ca710aeefbd7b49809c54f36f /doc/src | |
| parent | ba0c65ab092280343a3461657fc08f6d2e98ca9d (diff) | |
| download | postgresql-efa04da6570577bddac7498c847efb25ba02930a.tar.gz postgresql-efa04da6570577bddac7498c847efb25ba02930a.zip | |
doc: document "IS NOT DOCUMENT"
Reported-by: scott.ure@caseware.com
Discussion: https://postgr.es/m/152056505045.4963.16783351661813640274@wrigleys.postgresql.org
Author: Euler Taveira
Backpatch-through: 9.3
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/func.sgml | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index b73b82cc32d..03dff06b23d 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -9756,6 +9756,24 @@ SELECT xmlagg(x) FROM (SELECT * FROM test ORDER BY y DESC) AS tab; </para> </sect3> + <sect3> + <title><literal>IS NOT DOCUMENT</literal></title> + + <indexterm> + <primary>IS NOT DOCUMENT</primary> + </indexterm> + +<synopsis> +<replaceable>xml</replaceable> IS NOT DOCUMENT +</synopsis> + + <para> + The expression <literal>IS NOT DOCUMENT</literal> returns false if the + argument XML value is a proper XML document, true if it is not (that is, + it is a content fragment), or null if the argument is null. + </para> + </sect3> + <sect3 id="xml-exists"> <title><literal>XMLEXISTS</literal></title> |