diff options
| author | Bruce Momjian <bruce@momjian.us> | 2018-03-30 10:39:48 -0400 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2018-03-30 10:39:48 -0400 |
| commit | 5cbd54e40bfb529a364cad91e4d62274033d5eea (patch) | |
| tree | 515cb9bc4767827cb39aa15f7b5e9f028e697b5f /doc/src | |
| parent | f1e07d576318910738566abac2b4a57e891cb876 (diff) | |
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: 10
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 887a7cb764a..21d22869e84 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -10310,6 +10310,24 @@ 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> |