+ xpath_nodeset
+------------------------------------------------------------------------------------------------------------------------------
+ xpath_nodeset
+-----------------------------------------------------------------------------------
$$::text, 'n1="v1",n2="v2",n3="v3",n4="v4",n5="v5",n6="v6",n7="v7",n8="v8",n9="v9",n10="v10",n11="v11",n12="v12"'::text);
ERROR: xslt_process() is not available without libxslt
+-- xpath_nodeset()
+SELECT xpath_nodeset(article_xml::text, '/article/author|/article/pages')
+ FROM articles;
+ xpath_nodeset
+----------------------------------------
+(1 row)
+
+SELECT xpath_nodeset(article_xml::text, '/article/author|/article/pages',
+ 'item_without_toptag')
+ FROM articles;
+ xpath_nodeset
+------------------------------------------------------------------------------------------------------------------------------
+(1 row)
+
+SELECT xpath_nodeset(article_xml::text, '/article/author|/article/pages',
+ 'result', 'item')
+ FROM articles;
+ xpath_nodeset
+-----------------------------------------------------------------------------------
+(1 row)
+
+-- xpath_list()
+SELECT xpath_list(article_xml::text, '/article/author|/article/pages')
+ FROM articles;
+ xpath_list
+------------
+ test,37
+(1 row)
+
+SELECT xpath_list(article_xml::text, '/article/author|/article/pages', '|')
+ FROM articles;
+ xpath_list
+------------
+ test|37
+(1 row)
+
-- possible security exploit
SELECT xslt_process('Hello from XML',
$$
$$::text, 'n1="v1",n2="v2",n3="v3",n4="v4",n5="v5",n6="v6",n7="v7",n8="v8",n9="v9",n10="v10",n11="v11",n12="v12"'::text);
+-- xpath_nodeset()
+SELECT xpath_nodeset(article_xml::text, '/article/author|/article/pages')
+ FROM articles;
+SELECT xpath_nodeset(article_xml::text, '/article/author|/article/pages',
+ 'item_without_toptag')
+ FROM articles;
+SELECT xpath_nodeset(article_xml::text, '/article/author|/article/pages',
+ 'result', 'item')
+ FROM articles;
+
+-- xpath_list()
+SELECT xpath_list(article_xml::text, '/article/author|/article/pages')
+ FROM articles;
+SELECT xpath_list(article_xml::text, '/article/author|/article/pages', '|')
+ FROM articles;
+
-- possible security exploit
SELECT xslt_process('Hello from XML',
$$