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Diffstat (limited to '')
| -rw-r--r-- | src/test/regress/expected/xml.out | 1787 |
1 files changed, 1787 insertions, 0 deletions
diff --git a/src/test/regress/expected/xml.out b/src/test/regress/expected/xml.out new file mode 100644 index 0000000..398345c --- /dev/null +++ b/src/test/regress/expected/xml.out @@ -0,0 +1,1787 @@ +CREATE TABLE xmltest ( + id int, + data xml +); +INSERT INTO xmltest VALUES (1, '<value>one</value>'); +INSERT INTO xmltest VALUES (2, '<value>two</value>'); +INSERT INTO xmltest VALUES (3, '<wrong'); +ERROR: invalid XML content +LINE 1: INSERT INTO xmltest VALUES (3, '<wrong'); + ^ +DETAIL: line 1: Couldn't find end of Start Tag wrong line 1 +<wrong + ^ +SELECT * FROM xmltest; + id | data +----+-------------------- + 1 | <value>one</value> + 2 | <value>two</value> +(2 rows) + +-- test non-throwing API, too +SELECT pg_input_is_valid('<value>one</value>', 'xml'); + pg_input_is_valid +------------------- + t +(1 row) + +SELECT pg_input_is_valid('<value>one</', 'xml'); + pg_input_is_valid +------------------- + f +(1 row) + +SELECT message FROM pg_input_error_info('<value>one</', 'xml'); + message +--------------------- + invalid XML content +(1 row) + +SELECT pg_input_is_valid('<?xml version="1.0" standalone="y"?><foo/>', 'xml'); + pg_input_is_valid +------------------- + f +(1 row) + +SELECT message FROM pg_input_error_info('<?xml version="1.0" standalone="y"?><foo/>', 'xml'); + message +---------------------------------------------- + invalid XML content: invalid XML declaration +(1 row) + +SELECT xmlcomment('test'); + xmlcomment +------------- + <!--test--> +(1 row) + +SELECT xmlcomment('-test'); + xmlcomment +-------------- + <!---test--> +(1 row) + +SELECT xmlcomment('test-'); +ERROR: invalid XML comment +SELECT xmlcomment('--test'); +ERROR: invalid XML comment +SELECT xmlcomment('te st'); + xmlcomment +-------------- + <!--te st--> +(1 row) + +SELECT xmlconcat(xmlcomment('hello'), + xmlelement(NAME qux, 'foo'), + xmlcomment('world')); + xmlconcat +---------------------------------------- + <!--hello--><qux>foo</qux><!--world--> +(1 row) + +SELECT xmlconcat('hello', 'you'); + xmlconcat +----------- + helloyou +(1 row) + +SELECT xmlconcat(1, 2); +ERROR: argument of XMLCONCAT must be type xml, not type integer +LINE 1: SELECT xmlconcat(1, 2); + ^ +SELECT xmlconcat('bad', '<syntax'); +ERROR: invalid XML content +LINE 1: SELECT xmlconcat('bad', '<syntax'); + ^ +DETAIL: line 1: Couldn't find end of Start Tag syntax line 1 +<syntax + ^ +SELECT xmlconcat('<foo/>', NULL, '<?xml version="1.1" standalone="no"?><bar/>'); + xmlconcat +-------------- + <foo/><bar/> +(1 row) + +SELECT xmlconcat('<?xml version="1.1"?><foo/>', NULL, '<?xml version="1.1" standalone="no"?><bar/>'); + xmlconcat +----------------------------------- + <?xml version="1.1"?><foo/><bar/> +(1 row) + +SELECT xmlconcat(NULL); + xmlconcat +----------- + +(1 row) + +SELECT xmlconcat(NULL, NULL); + xmlconcat +----------- + +(1 row) + +SELECT xmlelement(name element, + xmlattributes (1 as one, 'deuce' as two), + 'content'); + xmlelement +------------------------------------------------ + <element one="1" two="deuce">content</element> +(1 row) + +SELECT xmlelement(name element, + xmlattributes ('unnamed and wrong')); +ERROR: unnamed XML attribute value must be a column reference +LINE 2: xmlattributes ('unnamed and wrong')); + ^ +SELECT xmlelement(name element, xmlelement(name nested, 'stuff')); + xmlelement +------------------------------------------- + <element><nested>stuff</nested></element> +(1 row) + +SELECT xmlelement(name employee, xmlforest(name, age, salary as pay)) FROM emp; + xmlelement +---------------------------------------------------------------------- + <employee><name>sharon</name><age>25</age><pay>1000</pay></employee> + <employee><name>sam</name><age>30</age><pay>2000</pay></employee> + <employee><name>bill</name><age>20</age><pay>1000</pay></employee> + <employee><name>jeff</name><age>23</age><pay>600</pay></employee> + <employee><name>cim</name><age>30</age><pay>400</pay></employee> + <employee><name>linda</name><age>19</age><pay>100</pay></employee> +(6 rows) + +SELECT xmlelement(name duplicate, xmlattributes(1 as a, 2 as b, 3 as a)); +ERROR: XML attribute name "a" appears more than once +LINE 1: ...ment(name duplicate, xmlattributes(1 as a, 2 as b, 3 as a)); + ^ +SELECT xmlelement(name num, 37); + xmlelement +--------------- + <num>37</num> +(1 row) + +SELECT xmlelement(name foo, text 'bar'); + xmlelement +---------------- + <foo>bar</foo> +(1 row) + +SELECT xmlelement(name foo, xml 'bar'); + xmlelement +---------------- + <foo>bar</foo> +(1 row) + +SELECT xmlelement(name foo, text 'b<a/>r'); + xmlelement +------------------------- + <foo>b<a/>r</foo> +(1 row) + +SELECT xmlelement(name foo, xml 'b<a/>r'); + xmlelement +------------------- + <foo>b<a/>r</foo> +(1 row) + +SELECT xmlelement(name foo, array[1, 2, 3]); + xmlelement +------------------------------------------------------------------------- + <foo><element>1</element><element>2</element><element>3</element></foo> +(1 row) + +SET xmlbinary TO base64; +SELECT xmlelement(name foo, bytea 'bar'); + xmlelement +----------------- + <foo>YmFy</foo> +(1 row) + +SET xmlbinary TO hex; +SELECT xmlelement(name foo, bytea 'bar'); + xmlelement +------------------- + <foo>626172</foo> +(1 row) + +SELECT xmlelement(name foo, xmlattributes(true as bar)); + xmlelement +------------------- + <foo bar="true"/> +(1 row) + +SELECT xmlelement(name foo, xmlattributes('2009-04-09 00:24:37'::timestamp as bar)); + xmlelement +---------------------------------- + <foo bar="2009-04-09T00:24:37"/> +(1 row) + +SELECT xmlelement(name foo, xmlattributes('infinity'::timestamp as bar)); +ERROR: timestamp out of range +DETAIL: XML does not support infinite timestamp values. +SELECT xmlelement(name foo, xmlattributes('<>&"''' as funny, xml 'b<a/>r' as funnier)); + xmlelement +------------------------------------------------------------ + <foo funny="<>&"'" funnier="b<a/>r"/> +(1 row) + +SELECT xmlparse(content ''); + xmlparse +---------- + +(1 row) + +SELECT xmlparse(content ' '); + xmlparse +---------- + +(1 row) + +SELECT xmlparse(content 'abc'); + xmlparse +---------- + abc +(1 row) + +SELECT xmlparse(content '<abc>x</abc>'); + xmlparse +-------------- + <abc>x</abc> +(1 row) + +SELECT xmlparse(content '<invalidentity>&</invalidentity>'); +ERROR: invalid XML content +DETAIL: line 1: xmlParseEntityRef: no name +<invalidentity>&</invalidentity> + ^ +line 1: chunk is not well balanced +<invalidentity>&</invalidentity> + ^ +SELECT xmlparse(content '<undefinedentity>&idontexist;</undefinedentity>'); +ERROR: invalid XML content +DETAIL: line 1: Entity 'idontexist' not defined +<undefinedentity>&idontexist;</undefinedentity> + ^ +line 1: chunk is not well balanced +<undefinedentity>&idontexist;</undefinedentity> + ^ +SELECT xmlparse(content '<invalidns xmlns=''<''/>'); + xmlparse +--------------------------- + <invalidns xmlns='<'/> +(1 row) + +SELECT xmlparse(content '<relativens xmlns=''relative''/>'); + xmlparse +-------------------------------- + <relativens xmlns='relative'/> +(1 row) + +SELECT xmlparse(content '<twoerrors>&idontexist;</unbalanced>'); +ERROR: invalid XML content +DETAIL: line 1: Entity 'idontexist' not defined +<twoerrors>&idontexist;</unbalanced> + ^ +line 1: Opening and ending tag mismatch: twoerrors line 1 and unbalanced +<twoerrors>&idontexist;</unbalanced> + ^ +line 1: chunk is not well balanced +<twoerrors>&idontexist;</unbalanced> + ^ +SELECT xmlparse(content '<nosuchprefix:tag/>'); + xmlparse +--------------------- + <nosuchprefix:tag/> +(1 row) + +SELECT xmlparse(document ' '); +ERROR: invalid XML document +DETAIL: line 1: Start tag expected, '<' not found + + ^ +SELECT xmlparse(document 'abc'); +ERROR: invalid XML document +DETAIL: line 1: Start tag expected, '<' not found +abc +^ +SELECT xmlparse(document '<abc>x</abc>'); + xmlparse +-------------- + <abc>x</abc> +(1 row) + +SELECT xmlparse(document '<invalidentity>&</abc>'); +ERROR: invalid XML document +DETAIL: line 1: xmlParseEntityRef: no name +<invalidentity>&</abc> + ^ +line 1: Opening and ending tag mismatch: invalidentity line 1 and abc +<invalidentity>&</abc> + ^ +SELECT xmlparse(document '<undefinedentity>&idontexist;</abc>'); +ERROR: invalid XML document +DETAIL: line 1: Entity 'idontexist' not defined +<undefinedentity>&idontexist;</abc> + ^ +line 1: Opening and ending tag mismatch: undefinedentity line 1 and abc +<undefinedentity>&idontexist;</abc> + ^ +SELECT xmlparse(document '<invalidns xmlns=''<''/>'); + xmlparse +--------------------------- + <invalidns xmlns='<'/> +(1 row) + +SELECT xmlparse(document '<relativens xmlns=''relative''/>'); + xmlparse +-------------------------------- + <relativens xmlns='relative'/> +(1 row) + +SELECT xmlparse(document '<twoerrors>&idontexist;</unbalanced>'); +ERROR: invalid XML document +DETAIL: line 1: Entity 'idontexist' not defined +<twoerrors>&idontexist;</unbalanced> + ^ +line 1: Opening and ending tag mismatch: twoerrors line 1 and unbalanced +<twoerrors>&idontexist;</unbalanced> + ^ +SELECT xmlparse(document '<nosuchprefix:tag/>'); + xmlparse +--------------------- + <nosuchprefix:tag/> +(1 row) + +SELECT xmlpi(name foo); + xmlpi +--------- + <?foo?> +(1 row) + +SELECT xmlpi(name xml); +ERROR: invalid XML processing instruction +DETAIL: XML processing instruction target name cannot be "xml". +SELECT xmlpi(name xmlstuff); + xmlpi +-------------- + <?xmlstuff?> +(1 row) + +SELECT xmlpi(name foo, 'bar'); + xmlpi +------------- + <?foo bar?> +(1 row) + +SELECT xmlpi(name foo, 'in?>valid'); +ERROR: invalid XML processing instruction +DETAIL: XML processing instruction cannot contain "?>". +SELECT xmlpi(name foo, null); + xmlpi +------- + +(1 row) + +SELECT xmlpi(name xml, null); +ERROR: invalid XML processing instruction +DETAIL: XML processing instruction target name cannot be "xml". +SELECT xmlpi(name xmlstuff, null); + xmlpi +------- + +(1 row) + +SELECT xmlpi(name "xml-stylesheet", 'href="mystyle.css" type="text/css"'); + xmlpi +------------------------------------------------------- + <?xml-stylesheet href="mystyle.css" type="text/css"?> +(1 row) + +SELECT xmlpi(name foo, ' bar'); + xmlpi +------------- + <?foo bar?> +(1 row) + +SELECT xmlroot(xml '<foo/>', version no value, standalone no value); + xmlroot +--------- + <foo/> +(1 row) + +SELECT xmlroot(xml '<foo/>', version '2.0'); + xmlroot +----------------------------- + <?xml version="2.0"?><foo/> +(1 row) + +SELECT xmlroot(xml '<foo/>', version no value, standalone yes); + xmlroot +---------------------------------------------- + <?xml version="1.0" standalone="yes"?><foo/> +(1 row) + +SELECT xmlroot(xml '<?xml version="1.1"?><foo/>', version no value, standalone yes); + xmlroot +---------------------------------------------- + <?xml version="1.0" standalone="yes"?><foo/> +(1 row) + +SELECT xmlroot(xmlroot(xml '<foo/>', version '1.0'), version '1.1', standalone no); + xmlroot +--------------------------------------------- + <?xml version="1.1" standalone="no"?><foo/> +(1 row) + +SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value, standalone no); + xmlroot +--------------------------------------------- + <?xml version="1.0" standalone="no"?><foo/> +(1 row) + +SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value, standalone no value); + xmlroot +--------- + <foo/> +(1 row) + +SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value); + xmlroot +---------------------------------------------- + <?xml version="1.0" standalone="yes"?><foo/> +(1 row) + +SELECT xmlroot ( + xmlelement ( + name gazonk, + xmlattributes ( + 'val' AS name, + 1 + 1 AS num + ), + xmlelement ( + NAME qux, + 'foo' + ) + ), + version '1.0', + standalone yes +); + xmlroot +------------------------------------------------------------------------------------------ + <?xml version="1.0" standalone="yes"?><gazonk name="val" num="2"><qux>foo</qux></gazonk> +(1 row) + +SELECT xmlserialize(content data as character varying(20)) FROM xmltest; + xmlserialize +-------------------- + <value>one</value> + <value>two</value> +(2 rows) + +SELECT xmlserialize(content 'good' as char(10)); + xmlserialize +-------------- + good +(1 row) + +SELECT xmlserialize(document 'bad' as text); +ERROR: not an XML document +-- indent +SELECT xmlserialize(DOCUMENT '<foo><bar><val x="y">42</val></bar></foo>' AS text INDENT); + xmlserialize +------------------------- + <foo> + + <bar> + + <val x="y">42</val>+ + </bar> + + </foo> + + +(1 row) + +SELECT xmlserialize(CONTENT '<foo><bar><val x="y">42</val></bar></foo>' AS text INDENT); + xmlserialize +------------------------- + <foo> + + <bar> + + <val x="y">42</val>+ + </bar> + + </foo> +(1 row) + +-- no indent +SELECT xmlserialize(DOCUMENT '<foo><bar><val x="y">42</val></bar></foo>' AS text NO INDENT); + xmlserialize +------------------------------------------- + <foo><bar><val x="y">42</val></bar></foo> +(1 row) + +SELECT xmlserialize(CONTENT '<foo><bar><val x="y">42</val></bar></foo>' AS text NO INDENT); + xmlserialize +------------------------------------------- + <foo><bar><val x="y">42</val></bar></foo> +(1 row) + +-- indent non singly-rooted xml +SELECT xmlserialize(DOCUMENT '<foo>73</foo><bar><val x="y">42</val></bar>' AS text INDENT); +ERROR: not an XML document +SELECT xmlserialize(CONTENT '<foo>73</foo><bar><val x="y">42</val></bar>' AS text INDENT); + xmlserialize +----------------------- + <foo>73</foo> + + <bar> + + <val x="y">42</val>+ + </bar> +(1 row) + +-- indent non singly-rooted xml with mixed contents +SELECT xmlserialize(DOCUMENT 'text node<foo>73</foo>text node<bar><val x="y">42</val></bar>' AS text INDENT); +ERROR: not an XML document +SELECT xmlserialize(CONTENT 'text node<foo>73</foo>text node<bar><val x="y">42</val></bar>' AS text INDENT); + xmlserialize +------------------------ + text node + + <foo>73</foo>text node+ + <bar> + + <val x="y">42</val> + + </bar> +(1 row) + +-- indent singly-rooted xml with mixed contents +SELECT xmlserialize(DOCUMENT '<foo><bar><val x="y">42</val><val x="y">text node<val>73</val></val></bar></foo>' AS text INDENT); + xmlserialize +--------------------------------------------- + <foo> + + <bar> + + <val x="y">42</val> + + <val x="y">text node<val>73</val></val>+ + </bar> + + </foo> + + +(1 row) + +SELECT xmlserialize(CONTENT '<foo><bar><val x="y">42</val><val x="y">text node<val>73</val></val></bar></foo>' AS text INDENT); + xmlserialize +--------------------------------------------- + <foo> + + <bar> + + <val x="y">42</val> + + <val x="y">text node<val>73</val></val>+ + </bar> + + </foo> +(1 row) + +-- indent empty string +SELECT xmlserialize(DOCUMENT '' AS text INDENT); +ERROR: not an XML document +SELECT xmlserialize(CONTENT '' AS text INDENT); + xmlserialize +-------------- + +(1 row) + +-- whitespaces +SELECT xmlserialize(DOCUMENT ' ' AS text INDENT); +ERROR: not an XML document +SELECT xmlserialize(CONTENT ' ' AS text INDENT); + xmlserialize +-------------- + +(1 row) + +-- indent null +SELECT xmlserialize(DOCUMENT NULL AS text INDENT); + xmlserialize +-------------- + +(1 row) + +SELECT xmlserialize(CONTENT NULL AS text INDENT); + xmlserialize +-------------- + +(1 row) + +-- indent with XML declaration +SELECT xmlserialize(DOCUMENT '<?xml version="1.0" encoding="UTF-8"?><foo><bar><val>73</val></bar></foo>' AS text INDENT); + xmlserialize +---------------------------------------- + <?xml version="1.0" encoding="UTF-8"?>+ + <foo> + + <bar> + + <val>73</val> + + </bar> + + </foo> + + +(1 row) + +SELECT xmlserialize(CONTENT '<?xml version="1.0" encoding="UTF-8"?><foo><bar><val>73</val></bar></foo>' AS text INDENT); + xmlserialize +------------------- + <foo> + + <bar> + + <val>73</val>+ + </bar> + + </foo> +(1 row) + +-- indent containing DOCTYPE declaration +SELECT xmlserialize(DOCUMENT '<!DOCTYPE a><a/>' AS text INDENT); + xmlserialize +-------------- + <!DOCTYPE a>+ + <a/> + + +(1 row) + +SELECT xmlserialize(CONTENT '<!DOCTYPE a><a/>' AS text INDENT); + xmlserialize +-------------- + <!DOCTYPE a>+ + <a/> + + +(1 row) + +-- indent xml with empty element +SELECT xmlserialize(DOCUMENT '<foo><bar></bar></foo>' AS text INDENT); + xmlserialize +-------------- + <foo> + + <bar/> + + </foo> + + +(1 row) + +SELECT xmlserialize(CONTENT '<foo><bar></bar></foo>' AS text INDENT); + xmlserialize +-------------- + <foo> + + <bar/> + + </foo> +(1 row) + +-- 'no indent' = not using 'no indent' +SELECT xmlserialize(DOCUMENT '<foo><bar><val x="y">42</val></bar></foo>' AS text) = xmlserialize(DOCUMENT '<foo><bar><val x="y">42</val></bar></foo>' AS text NO INDENT); + ?column? +---------- + t +(1 row) + +SELECT xmlserialize(CONTENT '<foo><bar><val x="y">42</val></bar></foo>' AS text) = xmlserialize(CONTENT '<foo><bar><val x="y">42</val></bar></foo>' AS text NO INDENT); + ?column? +---------- + t +(1 row) + +SELECT xml '<foo>bar</foo>' IS DOCUMENT; + ?column? +---------- + t +(1 row) + +SELECT xml '<foo>bar</foo><bar>foo</bar>' IS DOCUMENT; + ?column? +---------- + f +(1 row) + +SELECT xml '<abc/>' IS NOT DOCUMENT; + ?column? +---------- + f +(1 row) + +SELECT xml 'abc' IS NOT DOCUMENT; + ?column? +---------- + t +(1 row) + +SELECT '<>' IS NOT DOCUMENT; +ERROR: invalid XML content +LINE 1: SELECT '<>' IS NOT DOCUMENT; + ^ +DETAIL: line 1: StartTag: invalid element name +<> + ^ +SELECT xmlagg(data) FROM xmltest; + xmlagg +-------------------------------------- + <value>one</value><value>two</value> +(1 row) + +SELECT xmlagg(data) FROM xmltest WHERE id > 10; + xmlagg +-------- + +(1 row) + +SELECT xmlelement(name employees, xmlagg(xmlelement(name name, name))) FROM emp; + xmlelement +-------------------------------------------------------------------------------------------------------------------------------- + <employees><name>sharon</name><name>sam</name><name>bill</name><name>jeff</name><name>cim</name><name>linda</name></employees> +(1 row) + +-- Check mapping SQL identifier to XML name +SELECT xmlpi(name ":::_xml_abc135.%-&_"); + xmlpi +------------------------------------------------- + <?_x003A_::_x005F_xml_abc135._x0025_-_x0026__?> +(1 row) + +SELECT xmlpi(name "123"); + xmlpi +--------------- + <?_x0031_23?> +(1 row) + +PREPARE foo (xml) AS SELECT xmlconcat('<foo/>', $1); +SET XML OPTION DOCUMENT; +EXECUTE foo ('<bar/>'); + xmlconcat +-------------- + <foo/><bar/> +(1 row) + +EXECUTE foo ('bad'); +ERROR: invalid XML document +LINE 1: EXECUTE foo ('bad'); + ^ +DETAIL: line 1: Start tag expected, '<' not found +bad +^ +SELECT xml '<!DOCTYPE a><a/><b/>'; +ERROR: invalid XML document +LINE 1: SELECT xml '<!DOCTYPE a><a/><b/>'; + ^ +DETAIL: line 1: Extra content at the end of the document +<!DOCTYPE a><a/><b/> + ^ +SET XML OPTION CONTENT; +EXECUTE foo ('<bar/>'); + xmlconcat +-------------- + <foo/><bar/> +(1 row) + +EXECUTE foo ('good'); + xmlconcat +------------ + <foo/>good +(1 row) + +SELECT xml '<!-- in SQL:2006+ a doc is content too--> <?y z?> <!DOCTYPE a><a/>'; + xml +-------------------------------------------------------------------- + <!-- in SQL:2006+ a doc is content too--> <?y z?> <!DOCTYPE a><a/> +(1 row) + +SELECT xml '<?xml version="1.0"?> <!-- hi--> <!DOCTYPE a><a/>'; + xml +------------------------------ + <!-- hi--> <!DOCTYPE a><a/> +(1 row) + +SELECT xml '<!DOCTYPE a><a/>'; + xml +------------------ + <!DOCTYPE a><a/> +(1 row) + +SELECT xml '<!-- hi--> oops <!DOCTYPE a><a/>'; +ERROR: invalid XML content +LINE 1: SELECT xml '<!-- hi--> oops <!DOCTYPE a><a/>'; + ^ +DETAIL: line 1: StartTag: invalid element name +<!-- hi--> oops <!DOCTYPE a><a/> + ^ +SELECT xml '<!-- hi--> <oops/> <!DOCTYPE a><a/>'; +ERROR: invalid XML content +LINE 1: SELECT xml '<!-- hi--> <oops/> <!DOCTYPE a><a/>'; + ^ +DETAIL: line 1: StartTag: invalid element name +<!-- hi--> <oops/> <!DOCTYPE a><a/> + ^ +SELECT xml '<!DOCTYPE a><a/><b/>'; +ERROR: invalid XML content +LINE 1: SELECT xml '<!DOCTYPE a><a/><b/>'; + ^ +DETAIL: line 1: Extra content at the end of the document +<!DOCTYPE a><a/><b/> + ^ +-- Test backwards parsing +CREATE VIEW xmlview1 AS SELECT xmlcomment('test'); +CREATE VIEW xmlview2 AS SELECT xmlconcat('hello', 'you'); +CREATE VIEW xmlview3 AS SELECT xmlelement(name element, xmlattributes (1 as ":one:", 'deuce' as two), 'content&'); +CREATE VIEW xmlview4 AS SELECT xmlelement(name employee, xmlforest(name, age, salary as pay)) FROM emp; +CREATE VIEW xmlview5 AS SELECT xmlparse(content '<abc>x</abc>'); +CREATE VIEW xmlview6 AS SELECT xmlpi(name foo, 'bar'); +CREATE VIEW xmlview7 AS SELECT xmlroot(xml '<foo/>', version no value, standalone yes); +CREATE VIEW xmlview8 AS SELECT xmlserialize(content 'good' as char(10)); +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; + table_name | view_definition +------------+------------------------------------------------------------------------------------------------------------ + xmlview1 | SELECT xmlcomment('test'::text) AS xmlcomment; + xmlview2 | SELECT XMLCONCAT('hello'::xml, 'you'::xml) AS "xmlconcat"; + xmlview3 | SELECT XMLELEMENT(NAME element, XMLATTRIBUTES(1 AS ":one:", 'deuce' AS two), 'content&') AS "xmlelement"; + xmlview4 | SELECT XMLELEMENT(NAME employee, XMLFOREST(name AS name, age AS age, salary AS pay)) AS "xmlelement" + + | FROM emp; + xmlview5 | SELECT XMLPARSE(CONTENT '<abc>x</abc>'::text STRIP WHITESPACE) AS "xmlparse"; + xmlview6 | SELECT XMLPI(NAME foo, 'bar'::text) AS "xmlpi"; + xmlview7 | SELECT XMLROOT('<foo/>'::xml, VERSION NO VALUE, STANDALONE YES) AS "xmlroot"; + xmlview8 | SELECT (XMLSERIALIZE(CONTENT 'good'::xml AS character(10)))::character(10) AS "xmlserialize"; + xmlview9 | SELECT XMLSERIALIZE(CONTENT 'good'::xml AS text) AS "xmlserialize"; +(9 rows) + +-- Text XPath expressions evaluation +SELECT xpath('/value', data) FROM xmltest; + xpath +---------------------- + {<value>one</value>} + {<value>two</value>} +(2 rows) + +SELECT xpath(NULL, NULL) IS NULL FROM xmltest; + ?column? +---------- + t + t +(2 rows) + +SELECT xpath('', '<!-- error -->'); +ERROR: empty XPath expression +CONTEXT: SQL function "xpath" statement 1 +SELECT xpath('//text()', '<local:data xmlns:local="http://127.0.0.1"><local:piece id="1">number one</local:piece><local:piece id="2" /></local:data>'); + xpath +---------------- + {"number one"} +(1 row) + +SELECT xpath('//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', 'http://127.0.0.1']]); + xpath +------- + {1,2} +(1 row) + +SELECT xpath('//loc:piece', '<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', 'http://127.0.0.1']]); + xpath +------------------------------------------------------------------------------------------------------------------------------------------------ + {"<local:piece xmlns:local=\"http://127.0.0.1\" id=\"1\">number one</local:piece>","<local:piece xmlns:local=\"http://127.0.0.1\" id=\"2\"/>"} +(1 row) + +SELECT xpath('//loc:piece', '<local:data xmlns:local="http://127.0.0.1" xmlns="http://127.0.0.2"><local:piece id="1"><internal>number one</internal><internal2/></local:piece><local:piece id="2" /></local:data>', ARRAY[ARRAY['loc', 'http://127.0.0.1']]); + xpath +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + {"<local:piece xmlns:local=\"http://127.0.0.1\" xmlns=\"http://127.0.0.2\" id=\"1\"><internal>number one</internal><internal2/></local:piece>","<local:piece xmlns:local=\"http://127.0.0.1\" id=\"2\"/>"} +(1 row) + +SELECT xpath('//b', '<a>one <b>two</b> three <b>etc</b></a>'); + xpath +------------------------- + {<b>two</b>,<b>etc</b>} +(1 row) + +SELECT xpath('//text()', '<root><</root>'); + xpath +-------- + {<} +(1 row) + +SELECT xpath('//@value', '<root value="<"/>'); + xpath +-------- + {<} +(1 row) + +SELECT xpath('''<<invalid>>''', '<root/>'); + xpath +--------------------------- + {<<invalid>>} +(1 row) + +SELECT xpath('count(//*)', '<root><sub/><sub/></root>'); + xpath +------- + {3} +(1 row) + +SELECT xpath('count(//*)=0', '<root><sub/><sub/></root>'); + xpath +--------- + {false} +(1 row) + +SELECT xpath('count(//*)=3', '<root><sub/><sub/></root>'); + xpath +-------- + {true} +(1 row) + +SELECT xpath('name(/*)', '<root><sub/><sub/></root>'); + xpath +-------- + {root} +(1 row) + +SELECT xpath('/nosuchtag', '<root/>'); + xpath +------- + {} +(1 row) + +SELECT xpath('root', '<root/>'); + xpath +----------- + {<root/>} +(1 row) + +-- Round-trip non-ASCII data through xpath(). +DO $$ +DECLARE + xml_declaration text := '<?xml version="1.0" encoding="ISO-8859-1"?>'; + degree_symbol text; + res xml[]; +BEGIN + -- Per the documentation, except when the server encoding is UTF8, xpath() + -- may not work on non-ASCII data. The untranslatable_character and + -- undefined_function traps below, currently dead code, will become relevant + -- if we remove this limitation. + IF current_setting('server_encoding') <> 'UTF8' THEN + RAISE LOG 'skip: encoding % unsupported for xpath', + current_setting('server_encoding'); + RETURN; + END IF; + + degree_symbol := convert_from('\xc2b0', 'UTF8'); + res := xpath('text()', (xml_declaration || + '<x>' || degree_symbol || '</x>')::xml); + IF degree_symbol <> res[1]::text THEN + RAISE 'expected % (%), got % (%)', + degree_symbol, convert_to(degree_symbol, 'UTF8'), + res[1], convert_to(res[1]::text, 'UTF8'); + END IF; +EXCEPTION + -- character with byte sequence 0xc2 0xb0 in encoding "UTF8" has no equivalent in encoding "LATIN8" + WHEN untranslatable_character + -- default conversion function for encoding "UTF8" to "MULE_INTERNAL" does not exist + OR undefined_function + -- unsupported XML feature + OR feature_not_supported THEN + RAISE LOG 'skip: %', SQLERRM; +END +$$; +-- Test xmlexists and xpath_exists +SELECT xmlexists('//town[text() = ''Toronto'']' PASSING BY REF '<towns><town>Bidford-on-Avon</town><town>Cwmbran</town><town>Bristol</town></towns>'); + xmlexists +----------- + f +(1 row) + +SELECT xmlexists('//town[text() = ''Cwmbran'']' PASSING BY REF '<towns><town>Bidford-on-Avon</town><town>Cwmbran</town><town>Bristol</town></towns>'); + xmlexists +----------- + t +(1 row) + +SELECT xmlexists('count(/nosuchtag)' PASSING BY REF '<root/>'); + xmlexists +----------- + t +(1 row) + +SELECT xpath_exists('//town[text() = ''Toronto'']','<towns><town>Bidford-on-Avon</town><town>Cwmbran</town><town>Bristol</town></towns>'::xml); + xpath_exists +-------------- + f +(1 row) + +SELECT xpath_exists('//town[text() = ''Cwmbran'']','<towns><town>Bidford-on-Avon</town><town>Cwmbran</town><town>Bristol</town></towns>'::xml); + xpath_exists +-------------- + t +(1 row) + +SELECT xpath_exists('count(/nosuchtag)', '<root/>'::xml); + xpath_exists +-------------- + t +(1 row) + +INSERT INTO xmltest VALUES (4, '<menu><beers><name>Budvar</name><cost>free</cost><name>Carling</name><cost>lots</cost></beers></menu>'::xml); +INSERT INTO xmltest VALUES (5, '<menu><beers><name>Molson</name><cost>free</cost><name>Carling</name><cost>lots</cost></beers></menu>'::xml); +INSERT INTO xmltest VALUES (6, '<myns:menu xmlns:myns="http://myns.com"><myns:beers><myns:name>Budvar</myns:name><myns:cost>free</myns:cost><myns:name>Carling</myns:name><myns:cost>lots</myns:cost></myns:beers></myns:menu>'::xml); +INSERT INTO xmltest VALUES (7, '<myns:menu xmlns:myns="http://myns.com"><myns:beers><myns:name>Molson</myns:name><myns:cost>free</myns:cost><myns:name>Carling</myns:name><myns:cost>lots</myns:cost></myns:beers></myns:menu>'::xml); +SELECT COUNT(id) FROM xmltest WHERE xmlexists('/menu/beer' PASSING data); + count +------- + 0 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xmlexists('/menu/beer' PASSING BY REF data BY REF); + count +------- + 0 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xmlexists('/menu/beers' PASSING BY REF data); + count +------- + 2 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xmlexists('/menu/beers/name[text() = ''Molson'']' PASSING BY REF data); + count +------- + 1 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/menu/beer',data); + count +------- + 0 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/menu/beers',data); + count +------- + 2 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/menu/beers/name[text() = ''Molson'']',data); + count +------- + 1 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/myns:menu/myns:beer',data,ARRAY[ARRAY['myns','http://myns.com']]); + count +------- + 0 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/myns:menu/myns:beers',data,ARRAY[ARRAY['myns','http://myns.com']]); + count +------- + 2 +(1 row) + +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/myns:menu/myns:beers/myns:name[text() = ''Molson'']',data,ARRAY[ARRAY['myns','http://myns.com']]); + count +------- + 1 +(1 row) + +CREATE TABLE query ( expr TEXT ); +INSERT INTO query VALUES ('/menu/beers/cost[text() = ''lots'']'); +SELECT COUNT(id) FROM xmltest, query WHERE xmlexists(expr PASSING BY REF data); + count +------- + 2 +(1 row) + +-- Test xml_is_well_formed and variants +SELECT xml_is_well_formed_document('<foo>bar</foo>'); + xml_is_well_formed_document +----------------------------- + t +(1 row) + +SELECT xml_is_well_formed_document('abc'); + xml_is_well_formed_document +----------------------------- + f +(1 row) + +SELECT xml_is_well_formed_content('<foo>bar</foo>'); + xml_is_well_formed_content +---------------------------- + t +(1 row) + +SELECT xml_is_well_formed_content('abc'); + xml_is_well_formed_content +---------------------------- + t +(1 row) + +SET xmloption TO DOCUMENT; +SELECT xml_is_well_formed('abc'); + xml_is_well_formed +-------------------- + f +(1 row) + +SELECT xml_is_well_formed('<>'); + xml_is_well_formed +-------------------- + f +(1 row) + +SELECT xml_is_well_formed('<abc/>'); + xml_is_well_formed +-------------------- + t +(1 row) + +SELECT xml_is_well_formed('<foo>bar</foo>'); + xml_is_well_formed +-------------------- + t +(1 row) + +SELECT xml_is_well_formed('<foo>bar</foo'); + xml_is_well_formed +-------------------- + f +(1 row) + +SELECT xml_is_well_formed('<foo><bar>baz</foo>'); + xml_is_well_formed +-------------------- + f +(1 row) + +SELECT xml_is_well_formed('<local:data xmlns:local="http://127.0.0.1"><local:piece id="1">number one</local:piece><local:piece id="2" /></local:data>'); + xml_is_well_formed +-------------------- + t +(1 row) + +SELECT xml_is_well_formed('<pg:foo xmlns:pg="http://postgresql.org/stuff">bar</my:foo>'); + xml_is_well_formed +-------------------- + f +(1 row) + +SELECT xml_is_well_formed('<pg:foo xmlns:pg="http://postgresql.org/stuff">bar</pg:foo>'); + xml_is_well_formed +-------------------- + t +(1 row) + +SELECT xml_is_well_formed('<invalidentity>&</abc>'); + xml_is_well_formed +-------------------- + f +(1 row) + +SELECT xml_is_well_formed('<undefinedentity>&idontexist;</abc>'); + xml_is_well_formed +-------------------- + f +(1 row) + +SELECT xml_is_well_formed('<invalidns xmlns=''<''/>'); + xml_is_well_formed +-------------------- + t +(1 row) + +SELECT xml_is_well_formed('<relativens xmlns=''relative''/>'); + xml_is_well_formed +-------------------- + t +(1 row) + +SELECT xml_is_well_formed('<twoerrors>&idontexist;</unbalanced>'); + xml_is_well_formed +-------------------- + f +(1 row) + +SET xmloption TO CONTENT; +SELECT xml_is_well_formed('abc'); + xml_is_well_formed +-------------------- + t +(1 row) + +-- Since xpath() deals with namespaces, it's a bit stricter about +-- what's well-formed and what's not. If we don't obey these rules +-- (i.e. ignore namespace-related errors from libxml), xpath() +-- fails in subtle ways. The following would for example produce +-- the xml value +-- <invalidns xmlns='<'/> +-- which is invalid because '<' may not appear un-escaped in +-- attribute values. +-- Since different libxml versions emit slightly different +-- error messages, we suppress the DETAIL in this test. +\set VERBOSITY terse +SELECT xpath('/*', '<invalidns xmlns=''<''/>'); +ERROR: could not parse XML document +\set VERBOSITY default +-- Again, the XML isn't well-formed for namespace purposes +SELECT xpath('/*', '<nosuchprefix:tag/>'); +ERROR: could not parse XML document +DETAIL: line 1: Namespace prefix nosuchprefix on tag is not defined +<nosuchprefix:tag/> + ^ +CONTEXT: SQL function "xpath" statement 1 +-- XPath deprecates relative namespaces, but they're not supposed to +-- throw an error, only a warning. +SELECT xpath('/*', '<relativens xmlns=''relative''/>'); +WARNING: line 1: xmlns: URI relative is not absolute +<relativens xmlns='relative'/> + ^ + xpath +-------------------------------------- + {"<relativens xmlns=\"relative\"/>"} +(1 row) + +-- External entity references should not leak filesystem information. +SELECT XMLPARSE(DOCUMENT '<!DOCTYPE foo [<!ENTITY c SYSTEM "/etc/passwd">]><foo>&c;</foo>'); + xmlparse +----------------------------------------------------------------- + <!DOCTYPE foo [<!ENTITY c SYSTEM "/etc/passwd">]><foo>&c;</foo> +(1 row) + +SELECT XMLPARSE(DOCUMENT '<!DOCTYPE foo [<!ENTITY c SYSTEM "/etc/no.such.file">]><foo>&c;</foo>'); + xmlparse +----------------------------------------------------------------------- + <!DOCTYPE foo [<!ENTITY c SYSTEM "/etc/no.such.file">]><foo>&c;</foo> +(1 row) + +-- This might or might not load the requested DTD, but it mustn't throw error. +SELECT XMLPARSE(DOCUMENT '<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"><chapter> </chapter>'); + xmlparse +------------------------------------------------------------------------------------------------------------------------------------------------------ + <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"><chapter> </chapter> +(1 row) + +-- XMLPATH tests +CREATE TABLE xmldata(data xml); +INSERT INTO xmldata VALUES('<ROWS> +<ROW id="1"> + <COUNTRY_ID>AU</COUNTRY_ID> + <COUNTRY_NAME>Australia</COUNTRY_NAME> + <REGION_ID>3</REGION_ID> +</ROW> +<ROW id="2"> + <COUNTRY_ID>CN</COUNTRY_ID> + <COUNTRY_NAME>China</COUNTRY_NAME> + <REGION_ID>3</REGION_ID> +</ROW> +<ROW id="3"> + <COUNTRY_ID>HK</COUNTRY_ID> + <COUNTRY_NAME>HongKong</COUNTRY_NAME> + <REGION_ID>3</REGION_ID> +</ROW> +<ROW id="4"> + <COUNTRY_ID>IN</COUNTRY_ID> + <COUNTRY_NAME>India</COUNTRY_NAME> + <REGION_ID>3</REGION_ID> +</ROW> +<ROW id="5"> + <COUNTRY_ID>JP</COUNTRY_ID> + <COUNTRY_NAME>Japan</COUNTRY_NAME> + <REGION_ID>3</REGION_ID><PREMIER_NAME>Sinzo Abe</PREMIER_NAME> +</ROW> +<ROW id="6"> + <COUNTRY_ID>SG</COUNTRY_ID> + <COUNTRY_NAME>Singapore</COUNTRY_NAME> + <REGION_ID>3</REGION_ID><SIZE unit="km">791</SIZE> +</ROW> +</ROWS>'); +-- XMLTABLE with columns +SELECT xmltable.* + FROM (SELECT data FROM xmldata) x, + LATERAL XMLTABLE('/ROWS/ROW' + PASSING data + COLUMNS id int PATH '@id', + _id FOR ORDINALITY, + country_name text PATH 'COUNTRY_NAME/text()' NOT NULL, + country_id text PATH 'COUNTRY_ID', + region_id int PATH 'REGION_ID', + size float PATH 'SIZE', + unit text PATH 'SIZE/@unit', + premier_name text PATH 'PREMIER_NAME' DEFAULT 'not specified'); + id | _id | country_name | country_id | region_id | size | unit | premier_name +----+-----+--------------+------------+-----------+------+------+--------------- + 1 | 1 | Australia | AU | 3 | | | not specified + 2 | 2 | China | CN | 3 | | | not specified + 3 | 3 | HongKong | HK | 3 | | | not specified + 4 | 4 | India | IN | 3 | | | not specified + 5 | 5 | Japan | JP | 3 | | | Sinzo Abe + 6 | 6 | Singapore | SG | 3 | 791 | km | not specified +(6 rows) + +CREATE VIEW xmltableview1 AS SELECT xmltable.* + FROM (SELECT data FROM xmldata) x, + LATERAL XMLTABLE('/ROWS/ROW' + PASSING data + COLUMNS id int PATH '@id', + _id FOR ORDINALITY, + country_name text PATH 'COUNTRY_NAME/text()' NOT NULL, + country_id text PATH 'COUNTRY_ID', + region_id int PATH 'REGION_ID', + size float PATH 'SIZE', + unit text PATH 'SIZE/@unit', + premier_name text PATH 'PREMIER_NAME' DEFAULT 'not specified'); +SELECT * FROM xmltableview1; + id | _id | country_name | country_id | region_id | size | unit | premier_name +----+-----+--------------+------------+-----------+------+------+--------------- + 1 | 1 | Australia | AU | 3 | | | not specified + 2 | 2 | China | CN | 3 | | | not specified + 3 | 3 | HongKong | HK | 3 | | | not specified + 4 | 4 | India | IN | 3 | | | not specified + 5 | 5 | Japan | JP | 3 | | | Sinzo Abe + 6 | 6 | Singapore | SG | 3 | 791 | km | not specified +(6 rows) + +\sv xmltableview1 +CREATE OR REPLACE VIEW public.xmltableview1 AS + SELECT "xmltable".id, + "xmltable"._id, + "xmltable".country_name, + "xmltable".country_id, + "xmltable".region_id, + "xmltable".size, + "xmltable".unit, + "xmltable".premier_name + FROM ( SELECT xmldata.data + FROM xmldata) x, + LATERAL XMLTABLE(('/ROWS/ROW'::text) PASSING (x.data) COLUMNS id integer PATH ('@id'::text), _id FOR ORDINALITY, country_name text PATH ('COUNTRY_NAME/text()'::text) NOT NULL, country_id text PATH ('COUNTRY_ID'::text), region_id integer PATH ('REGION_ID'::text), size double precision PATH ('SIZE'::text), unit text PATH ('SIZE/@unit'::text), premier_name text DEFAULT ('not specified'::text) PATH ('PREMIER_NAME'::text)) +EXPLAIN (COSTS OFF) SELECT * FROM xmltableview1; + QUERY PLAN +----------------------------------------- + Nested Loop + -> Seq Scan on xmldata + -> Table Function Scan on "xmltable" +(3 rows) + +EXPLAIN (COSTS OFF, VERBOSE) SELECT * FROM xmltableview1; + QUERY PLAN +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + Nested Loop + Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name + -> Seq Scan on public.xmldata + Output: xmldata.data + -> Table Function Scan on "xmltable" + Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name + Table Function Call: XMLTABLE(('/ROWS/ROW'::text) PASSING (xmldata.data) COLUMNS id integer PATH ('@id'::text), _id FOR ORDINALITY, country_name text PATH ('COUNTRY_NAME/text()'::text) NOT NULL, country_id text PATH ('COUNTRY_ID'::text), region_id integer PATH ('REGION_ID'::text), size double precision PATH ('SIZE'::text), unit text PATH ('SIZE/@unit'::text), premier_name text DEFAULT ('not specified'::text) PATH ('PREMIER_NAME'::text)) +(7 rows) + +-- errors +SELECT * FROM XMLTABLE (ROW () PASSING null COLUMNS v1 timestamp) AS f (v1, v2); +ERROR: XMLTABLE function has 1 columns available but 2 columns specified +-- XMLNAMESPACES tests +SELECT * FROM XMLTABLE(XMLNAMESPACES('http://x.y' AS zz), + '/zz:rows/zz:row' + PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>' + COLUMNS a int PATH 'zz:a'); + a +---- + 10 +(1 row) + +CREATE VIEW xmltableview2 AS SELECT * FROM XMLTABLE(XMLNAMESPACES('http://x.y' AS zz), + '/zz:rows/zz:row' + PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>' + COLUMNS a int PATH 'zz:a'); +SELECT * FROM xmltableview2; + a +---- + 10 +(1 row) + +SELECT * FROM XMLTABLE(XMLNAMESPACES(DEFAULT 'http://x.y'), + '/rows/row' + PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>' + COLUMNS a int PATH 'a'); +ERROR: DEFAULT namespace is not supported +SELECT * FROM XMLTABLE('.' + PASSING '<foo/>' + COLUMNS a text PATH 'foo/namespace::node()'); + a +-------------------------------------- + http://www.w3.org/XML/1998/namespace +(1 row) + +-- used in prepare statements +PREPARE pp AS +SELECT xmltable.* + FROM (SELECT data FROM xmldata) x, + LATERAL XMLTABLE('/ROWS/ROW' + PASSING data + COLUMNS id int PATH '@id', + _id FOR ORDINALITY, + country_name text PATH 'COUNTRY_NAME' NOT NULL, + country_id text PATH 'COUNTRY_ID', + region_id int PATH 'REGION_ID', + size float PATH 'SIZE', + unit text PATH 'SIZE/@unit', + premier_name text PATH 'PREMIER_NAME' DEFAULT 'not specified'); +EXECUTE pp; + id | _id | country_name | country_id | region_id | size | unit | premier_name +----+-----+--------------+------------+-----------+------+------+--------------- + 1 | 1 | Australia | AU | 3 | | | not specified + 2 | 2 | China | CN | 3 | | | not specified + 3 | 3 | HongKong | HK | 3 | | | not specified + 4 | 4 | India | IN | 3 | | | not specified + 5 | 5 | Japan | JP | 3 | | | Sinzo Abe + 6 | 6 | Singapore | SG | 3 | 791 | km | not specified +(6 rows) + +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int); + COUNTRY_NAME | REGION_ID +--------------+----------- + India | 3 + Japan | 3 +(2 rows) + +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS id FOR ORDINALITY, "COUNTRY_NAME" text, "REGION_ID" int); + id | COUNTRY_NAME | REGION_ID +----+--------------+----------- + 1 | India | 3 + 2 | Japan | 3 +(2 rows) + +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS id int PATH '@id', "COUNTRY_NAME" text, "REGION_ID" int); + id | COUNTRY_NAME | REGION_ID +----+--------------+----------- + 4 | India | 3 + 5 | Japan | 3 +(2 rows) + +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS id int PATH '@id'); + id +---- + 4 + 5 +(2 rows) + +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS id FOR ORDINALITY); + id +---- + 1 + 2 +(2 rows) + +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS id int PATH '@id', "COUNTRY_NAME" text, "REGION_ID" int, rawdata xml PATH '.'); + id | COUNTRY_NAME | REGION_ID | rawdata +----+--------------+-----------+------------------------------------------------------------------ + 4 | India | 3 | <ROW id="4"> + + | | | <COUNTRY_ID>IN</COUNTRY_ID> + + | | | <COUNTRY_NAME>India</COUNTRY_NAME> + + | | | <REGION_ID>3</REGION_ID> + + | | | </ROW> + 5 | Japan | 3 | <ROW id="5"> + + | | | <COUNTRY_ID>JP</COUNTRY_ID> + + | | | <COUNTRY_NAME>Japan</COUNTRY_NAME> + + | | | <REGION_ID>3</REGION_ID><PREMIER_NAME>Sinzo Abe</PREMIER_NAME>+ + | | | </ROW> +(2 rows) + +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS id int PATH '@id', "COUNTRY_NAME" text, "REGION_ID" int, rawdata xml PATH './*'); + id | COUNTRY_NAME | REGION_ID | rawdata +----+--------------+-----------+----------------------------------------------------------------------------------------------------------------------------- + 4 | India | 3 | <COUNTRY_ID>IN</COUNTRY_ID><COUNTRY_NAME>India</COUNTRY_NAME><REGION_ID>3</REGION_ID> + 5 | Japan | 3 | <COUNTRY_ID>JP</COUNTRY_ID><COUNTRY_NAME>Japan</COUNTRY_NAME><REGION_ID>3</REGION_ID><PREMIER_NAME>Sinzo Abe</PREMIER_NAME> +(2 rows) + +SELECT * FROM xmltable('/root' passing '<root><element>a1a<!-- aaaa -->a2a<?aaaaa?> <!--z--> bbbb<x>xxx</x>cccc</element></root>' COLUMNS element text); + element +---------------------- + a1aa2a bbbbxxxcccc +(1 row) + +SELECT * FROM xmltable('/root' passing '<root><element>a1a<!-- aaaa -->a2a<?aaaaa?> <!--z--> bbbb<x>xxx</x>cccc</element></root>' COLUMNS element text PATH 'element/text()'); -- should fail +ERROR: more than one value returned by column XPath expression +-- CDATA test +select * from xmltable('d/r' passing '<d><r><c><![CDATA[<hello> &"<>!<a>foo</a>]]></c></r><r><c>2</c></r></d>' columns c text); + c +------------------------- + <hello> &"<>!<a>foo</a> + 2 +(2 rows) + +-- XML builtin entities +SELECT * FROM xmltable('/x/a' PASSING '<x><a><ent>'</ent></a><a><ent>"</ent></a><a><ent>&</ent></a><a><ent><</ent></a><a><ent>></ent></a></x>' COLUMNS ent text); + ent +----- + ' + " + & + < + > +(5 rows) + +SELECT * FROM xmltable('/x/a' PASSING '<x><a><ent>'</ent></a><a><ent>"</ent></a><a><ent>&</ent></a><a><ent><</ent></a><a><ent>></ent></a></x>' COLUMNS ent xml); + ent +------------------ + <ent>'</ent> + <ent>"</ent> + <ent>&</ent> + <ent><</ent> + <ent>></ent> +(5 rows) + +EXPLAIN (VERBOSE, COSTS OFF) +SELECT xmltable.* + FROM (SELECT data FROM xmldata) x, + LATERAL XMLTABLE('/ROWS/ROW' + PASSING data + COLUMNS id int PATH '@id', + _id FOR ORDINALITY, + country_name text PATH 'COUNTRY_NAME' NOT NULL, + country_id text PATH 'COUNTRY_ID', + region_id int PATH 'REGION_ID', + size float PATH 'SIZE', + unit text PATH 'SIZE/@unit', + premier_name text PATH 'PREMIER_NAME' DEFAULT 'not specified'); + QUERY PLAN +----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + Nested Loop + Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name + -> Seq Scan on public.xmldata + Output: xmldata.data + -> Table Function Scan on "xmltable" + Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name + Table Function Call: XMLTABLE(('/ROWS/ROW'::text) PASSING (xmldata.data) COLUMNS id integer PATH ('@id'::text), _id FOR ORDINALITY, country_name text PATH ('COUNTRY_NAME'::text) NOT NULL, country_id text PATH ('COUNTRY_ID'::text), region_id integer PATH ('REGION_ID'::text), size double precision PATH ('SIZE'::text), unit text PATH ('SIZE/@unit'::text), premier_name text DEFAULT ('not specified'::text) PATH ('PREMIER_NAME'::text)) +(7 rows) + +-- test qual +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) WHERE "COUNTRY_NAME" = 'Japan'; + COUNTRY_NAME | REGION_ID +--------------+----------- + Japan | 3 +(1 row) + +EXPLAIN (VERBOSE, COSTS OFF) +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) WHERE "COUNTRY_NAME" = 'Japan'; + QUERY PLAN +---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + Nested Loop + Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID" + -> Seq Scan on public.xmldata + Output: xmldata.data + -> Table Function Scan on "xmltable" + Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID" + Table Function Call: XMLTABLE(('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]'::text) PASSING (xmldata.data) COLUMNS "COUNTRY_NAME" text, "REGION_ID" integer) + Filter: ("xmltable"."COUNTRY_NAME" = 'Japan'::text) +(8 rows) + +-- should to work with more data +INSERT INTO xmldata VALUES('<ROWS> +<ROW id="10"> + <COUNTRY_ID>CZ</COUNTRY_ID> + <COUNTRY_NAME>Czech Republic</COUNTRY_NAME> + <REGION_ID>2</REGION_ID><PREMIER_NAME>Milos Zeman</PREMIER_NAME> +</ROW> +<ROW id="11"> + <COUNTRY_ID>DE</COUNTRY_ID> + <COUNTRY_NAME>Germany</COUNTRY_NAME> + <REGION_ID>2</REGION_ID> +</ROW> +<ROW id="12"> + <COUNTRY_ID>FR</COUNTRY_ID> + <COUNTRY_NAME>France</COUNTRY_NAME> + <REGION_ID>2</REGION_ID> +</ROW> +</ROWS>'); +INSERT INTO xmldata VALUES('<ROWS> +<ROW id="20"> + <COUNTRY_ID>EG</COUNTRY_ID> + <COUNTRY_NAME>Egypt</COUNTRY_NAME> + <REGION_ID>1</REGION_ID> +</ROW> +<ROW id="21"> + <COUNTRY_ID>SD</COUNTRY_ID> + <COUNTRY_NAME>Sudan</COUNTRY_NAME> + <REGION_ID>1</REGION_ID> +</ROW> +</ROWS>'); +SELECT xmltable.* + FROM (SELECT data FROM xmldata) x, + LATERAL XMLTABLE('/ROWS/ROW' + PASSING data + COLUMNS id int PATH '@id', + _id FOR ORDINALITY, + country_name text PATH 'COUNTRY_NAME' NOT NULL, + country_id text PATH 'COUNTRY_ID', + region_id int PATH 'REGION_ID', + size float PATH 'SIZE', + unit text PATH 'SIZE/@unit', + premier_name text PATH 'PREMIER_NAME' DEFAULT 'not specified'); + id | _id | country_name | country_id | region_id | size | unit | premier_name +----+-----+----------------+------------+-----------+------+------+--------------- + 1 | 1 | Australia | AU | 3 | | | not specified + 2 | 2 | China | CN | 3 | | | not specified + 3 | 3 | HongKong | HK | 3 | | | not specified + 4 | 4 | India | IN | 3 | | | not specified + 5 | 5 | Japan | JP | 3 | | | Sinzo Abe + 6 | 6 | Singapore | SG | 3 | 791 | km | not specified + 10 | 1 | Czech Republic | CZ | 2 | | | Milos Zeman + 11 | 2 | Germany | DE | 2 | | | not specified + 12 | 3 | France | FR | 2 | | | not specified + 20 | 1 | Egypt | EG | 1 | | | not specified + 21 | 2 | Sudan | SD | 1 | | | not specified +(11 rows) + +SELECT xmltable.* + FROM (SELECT data FROM xmldata) x, + LATERAL XMLTABLE('/ROWS/ROW' + PASSING data + COLUMNS id int PATH '@id', + _id FOR ORDINALITY, + country_name text PATH 'COUNTRY_NAME' NOT NULL, + country_id text PATH 'COUNTRY_ID', + region_id int PATH 'REGION_ID', + size float PATH 'SIZE', + unit text PATH 'SIZE/@unit', + premier_name text PATH 'PREMIER_NAME' DEFAULT 'not specified') + WHERE region_id = 2; + id | _id | country_name | country_id | region_id | size | unit | premier_name +----+-----+----------------+------------+-----------+------+------+--------------- + 10 | 1 | Czech Republic | CZ | 2 | | | Milos Zeman + 11 | 2 | Germany | DE | 2 | | | not specified + 12 | 3 | France | FR | 2 | | | not specified +(3 rows) + +EXPLAIN (VERBOSE, COSTS OFF) +SELECT xmltable.* + FROM (SELECT data FROM xmldata) x, + LATERAL XMLTABLE('/ROWS/ROW' + PASSING data + COLUMNS id int PATH '@id', + _id FOR ORDINALITY, + country_name text PATH 'COUNTRY_NAME' NOT NULL, + country_id text PATH 'COUNTRY_ID', + region_id int PATH 'REGION_ID', + size float PATH 'SIZE', + unit text PATH 'SIZE/@unit', + premier_name text PATH 'PREMIER_NAME' DEFAULT 'not specified') + WHERE region_id = 2; + QUERY PLAN +----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + Nested Loop + Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name + -> Seq Scan on public.xmldata + Output: xmldata.data + -> Table Function Scan on "xmltable" + Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name + Table Function Call: XMLTABLE(('/ROWS/ROW'::text) PASSING (xmldata.data) COLUMNS id integer PATH ('@id'::text), _id FOR ORDINALITY, country_name text PATH ('COUNTRY_NAME'::text) NOT NULL, country_id text PATH ('COUNTRY_ID'::text), region_id integer PATH ('REGION_ID'::text), size double precision PATH ('SIZE'::text), unit text PATH ('SIZE/@unit'::text), premier_name text DEFAULT ('not specified'::text) PATH ('PREMIER_NAME'::text)) + Filter: ("xmltable".region_id = 2) +(8 rows) + +-- should fail, NULL value +SELECT xmltable.* + FROM (SELECT data FROM xmldata) x, + LATERAL XMLTABLE('/ROWS/ROW' + PASSING data + COLUMNS id int PATH '@id', + _id FOR ORDINALITY, + country_name text PATH 'COUNTRY_NAME' NOT NULL, + country_id text PATH 'COUNTRY_ID', + region_id int PATH 'REGION_ID', + size float PATH 'SIZE' NOT NULL, + unit text PATH 'SIZE/@unit', + premier_name text PATH 'PREMIER_NAME' DEFAULT 'not specified'); +ERROR: null is not allowed in column "size" +-- if all is ok, then result is empty +-- one line xml test +WITH + x AS (SELECT proname, proowner, procost::numeric, pronargs, + array_to_string(proargnames,',') as proargnames, + case when proargtypes <> '' then array_to_string(proargtypes::oid[],',') end as proargtypes + FROM pg_proc WHERE proname = 'f_leak'), + y AS (SELECT xmlelement(name proc, + xmlforest(proname, proowner, + procost, pronargs, + proargnames, proargtypes)) as proc + FROM x), + z AS (SELECT xmltable.* + FROM y, + LATERAL xmltable('/proc' PASSING proc + COLUMNS proname name, + proowner oid, + procost float, + pronargs int, + proargnames text, + proargtypes text)) + SELECT * FROM z + EXCEPT SELECT * FROM x; + proname | proowner | procost | pronargs | proargnames | proargtypes +---------+----------+---------+----------+-------------+------------- +(0 rows) + +-- multi line xml test, result should be empty too +WITH + x AS (SELECT proname, proowner, procost::numeric, pronargs, + array_to_string(proargnames,',') as proargnames, + case when proargtypes <> '' then array_to_string(proargtypes::oid[],',') end as proargtypes + FROM pg_proc), + y AS (SELECT xmlelement(name data, + xmlagg(xmlelement(name proc, + xmlforest(proname, proowner, procost, + pronargs, proargnames, proargtypes)))) as doc + FROM x), + z AS (SELECT xmltable.* + FROM y, + LATERAL xmltable('/data/proc' PASSING doc + COLUMNS proname name, + proowner oid, + procost float, + pronargs int, + proargnames text, + proargtypes text)) + SELECT * FROM z + EXCEPT SELECT * FROM x; + proname | proowner | procost | pronargs | proargnames | proargtypes +---------+----------+---------+----------+-------------+------------- +(0 rows) + +CREATE TABLE xmltest2(x xml, _path text); +INSERT INTO xmltest2 VALUES('<d><r><ac>1</ac></r></d>', 'A'); +INSERT INTO xmltest2 VALUES('<d><r><bc>2</bc></r></d>', 'B'); +INSERT INTO xmltest2 VALUES('<d><r><cc>3</cc></r></d>', 'C'); +INSERT INTO xmltest2 VALUES('<d><r><dc>2</dc></r></d>', 'D'); +SELECT xmltable.* FROM xmltest2, LATERAL xmltable('/d/r' PASSING x COLUMNS a int PATH '' || lower(_path) || 'c'); + a +--- + 1 + 2 + 3 + 2 +(4 rows) + +SELECT xmltable.* FROM xmltest2, LATERAL xmltable(('/d/r/' || lower(_path) || 'c') PASSING x COLUMNS a int PATH '.'); + a +--- + 1 + 2 + 3 + 2 +(4 rows) + +SELECT xmltable.* FROM xmltest2, LATERAL xmltable(('/d/r/' || lower(_path) || 'c') PASSING x COLUMNS a int PATH 'x' DEFAULT ascii(_path) - 54); + a +---- + 11 + 12 + 13 + 14 +(4 rows) + +-- XPath result can be boolean or number too +SELECT * FROM XMLTABLE('*' PASSING '<a>a</a>' COLUMNS a xml PATH '.', b text PATH '.', c text PATH '"hi"', d boolean PATH '. = "a"', e integer PATH 'string-length(.)'); + a | b | c | d | e +----------+---+----+---+--- + <a>a</a> | a | hi | t | 1 +(1 row) + +\x +SELECT * FROM XMLTABLE('*' PASSING '<e>pre<!--c1--><?pi arg?><![CDATA[&ent1]]><n2>&deep</n2>post</e>' COLUMNS x xml PATH '/e/n2', y xml PATH '/'); +-[ RECORD 1 ]----------------------------------------------------------- +x | <n2>&deep</n2> +y | <e>pre<!--c1--><?pi arg?><![CDATA[&ent1]]><n2>&deep</n2>post</e>+ + | + +\x +SELECT * FROM XMLTABLE('.' PASSING XMLELEMENT(NAME a) columns a varchar(20) PATH '"<foo/>"', b xml PATH '"<foo/>"'); + a | b +--------+-------------- + <foo/> | <foo/> +(1 row) + |