diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/func.sgml | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index fd28615ae0e..659da49a849 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.520 2010/06/29 22:29:13 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.521 2010/07/03 17:21:48 momjian Exp $ --> <chapter id="functions"> <title>Functions and Operators</title> @@ -8610,8 +8610,11 @@ SELECT xmlagg(x) FROM (SELECT * FROM test ORDER BY y DESC) AS tab; mappings. This array should be a two-dimensional array with the length of the second axis being equal to 2 (i.e., it should be an array of arrays, each of which consists of exactly 2 elements). - The first element of each array entry is the namespace name, the - second the namespace URI. + The first element of each array entry is the namespace name (alias), the + second the namespace URI. It is not required that aliases provided in + this array are the same that those being used in the XML document itself (in + other words, both in the XML document and in the <function>xpath</function> + function context, aliases are <emphasis>local</>). </para> <para> @@ -8626,6 +8629,19 @@ SELECT xpath('/my:a/text()', '<my:a xmlns:my="http://example.com">test</my:a>', (1 row) ]]></screen> </para> + + <para> + How to deal with default (anonymous) namespaces: +<screen><![CDATA[ +SELECT xpath('//mydefns:b/text()', '<a xmlns="http://example.com"><b>test</b></a>', + ARRAY[ARRAY['mydefns', 'http://example.com']]); + + xpath +-------- + {test} +(1 row) +]]></screen> + </para> </sect2> <sect2 id="functions-xml-mapping"> |