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Add xmlpath() to evaluate XPath expressions, with namespaces support.

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Nikolay Samokhvalov
This commit is contained in:
Bruce Momjian
2007-03-22 20:14:58 +00:00
parent 4f896dac17
commit e651bcf3f6
6 changed files with 309 additions and 4 deletions
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8
src/test/regress/sql/xml.sql
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@ -144,3 +144,11 @@ CREATE VIEW xmlview9 AS SELECT xmlserialize(content 'good' as text);
SELECT table_name, view_definition FROM information_schema.views
WHERE table_name LIKE 'xmlview%' ORDER BY 1;
-- Text XPath expressions evaluation
SELECT xmlpath('/value', data) FROM xmltest;
SELECT xmlpath(NULL, NULL) IS NULL FROM xmltest;
SELECT xmlpath('', '<!-- error -->');
SELECT xmlpath('//text()', '<local:data xmlns:local="http://127.0.0.1"><local:piece id="1">number one</local:piece><local:piece id="2" /></local:data>');
SELECT xmlpath('//loc:piece/@id', '<local:data xmlns:local="http://127.0.0.1"><local:piece id="1">number one</local:piece><local:piece id="2" /></local:data>', ARRAY[ARRAY['loc'], ARRAY['http://127.0.0.1']]);