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src/test/regress/expected/xml.out
1 892 строки
74 KB
Michael Paquier
Trim regression test expected output for xml
15 июн 2026, 05:37
15 июн 2026, 05:37
b78cd2b
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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, '<value>three</wrong> '); ERROR: invalid XML content LINE 1: INSERT INTO xmltest VALUES (3, '<value>three</wrong> '); ^ DETAIL: line 1: Opening and ending tag mismatch: value line 1 and wrong <value>three</wrong> ^ -- If no XML data could be inserted, skip the tests as the server has been -- compiled without libxml support. SELECT count(*) = 0 AS skip_test FROM xmltest \gset \if :skip_test \quit \endif 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', '<wrong></syntax> '); ERROR: invalid XML content LINE 1: SELECT xmlconcat('bad', '<wrong></syntax> '); ^ DETAIL: line 1: Opening and ending tag mismatch: wrong line 1 and syntax <wrong></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> ^ SELECT xmlparse(content '<undefinedentity>&idontexist;</undefinedentity>'); ERROR: invalid XML content DETAIL: line 1: Entity 'idontexist' not defined <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> ^ 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) -- indent xml strings containing blank nodes SELECT xmlserialize(DOCUMENT '<foo> <bar></bar> </foo>' AS text INDENT); xmlserialize -------------- <foo> + <bar/> + </foo> (1 row) SELECT xmlserialize(CONTENT 'text node<foo> <bar></bar> </foo>' AS text INDENT); xmlserialize -------------- text node + <foo> + <bar/> + </foo> (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); CREATE VIEW xmlview10 AS SELECT xmlserialize(document '<foo><bar>42</bar></foo>' AS text indent); CREATE VIEW xmlview11 AS SELECT xmlserialize(document '<foo><bar>42</bar></foo>' AS character varying no indent); 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; xmlview10 | SELECT XMLSERIALIZE(DOCUMENT '<foo><bar>42</bar></foo>'::xml AS text INDENT) AS "xmlserialize"; xmlview11 | SELECT (XMLSERIALIZE(DOCUMENT '<foo><bar>42</bar></foo>'::xml AS character varying NO INDENT))::character varying AS "xmlserialize"; 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) NO INDENT))::character(10) AS "xmlserialize"; xmlview9 | SELECT XMLSERIALIZE(CONTENT 'good'::xml AS text NO INDENT) AS "xmlserialize"; (11 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) SELECT xpath('//namespace::foo', '<root xmlns:foo="http://127.0.0.1"/>'); xpath -------------------- {http://127.0.0.1} (1 row) -- Round-trip non-ASCII data through xpath(). DO $$ DECLARE xml_declaration text := '<?xml version="1.0" encoding="ISO-8859-1"?>'; degree_symbol text; res xml[]; BEGIN -- Per the documentation, except when the server encoding is UTF8, xpath() -- may not work on non-ASCII data. The untranslatable_character and -- undefined_function traps below, currently dead code, will become relevant -- if we remove this limitation. IF current_setting('server_encoding') <> 'UTF8' THEN RAISE LOG 'skip: encoding % unsupported for xpath', current_setting('server_encoding'); RETURN; END IF; degree_symbol := convert_from('\xc2b0', 'UTF8'); res := xpath('text()', (xml_declaration || '<x>' || degree_symbol || '</x>')::xml); IF degree_symbol <> res[1]::text THEN RAISE 'expected % (%), got % (%)', degree_symbol, convert_to(degree_symbol, 'UTF8'), res[1], convert_to(res[1]::text, 'UTF8'); END IF; EXCEPTION -- character with byte sequence 0xc2 0xb0 in encoding "UTF8" has no equivalent in encoding "LATIN8" WHEN undefined_function -- unsupported XML feature OR feature_not_supported THEN RAISE LOG 'skip: %', SQLERRM; END $$; -- 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 SELECT * FROM XMLTABLE (ROW () PASSING null COLUMNS v1 timestamp __pg__is_not_null 1) AS f (v1); ERROR: option name "__pg__is_not_null" cannot be used in XMLTABLE LINE 1: ...MLTABLE (ROW () PASSING null COLUMNS v1 timestamp __pg__is_n... ^ -- 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) \sv xmltableview2 CREATE OR REPLACE VIEW public.xmltableview2 AS SELECT a FROM XMLTABLE(XMLNAMESPACES ('http://x.y'::text AS "Zz"), ('/Zz:rows/Zz:row'::text) PASSING ('<rows xmlns="http://x.y"><row><a>10</a></row></rows>'::xml) COLUMNS a integer PATH ('Zz:a'::text)) 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 f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan'; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Nested Loop Output: f."COUNTRY_NAME", f."REGION_ID" -> Seq Scan on public.xmldata Output: xmldata.data -> Table Function Scan on "xmltable" f Output: f."COUNTRY_NAME", f."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: (f."COUNTRY_NAME" = 'Japan'::text) (8 rows) EXPLAIN (VERBOSE, FORMAT JSON, COSTS OFF) SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan'; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- [ + { + "Plan": { + "Node Type": "Nested Loop", + "Parallel Aware": false, + "Async Capable": false, + "Join Type": "Inner", + "Disabled": false, + "Output": ["f.\"COUNTRY_NAME\"", "f.\"REGION_ID\""], + "Inner Unique": false, + "Plans": [ + { + "Node Type": "Seq Scan", + "Parent Relationship": "Outer", + "Parallel Aware": false, + "Async Capable": false, + "Relation Name": "xmldata", + "Schema": "public", + "Alias": "xmldata", + "Disabled": false, + "Output": ["xmldata.data"] + }, + { + "Node Type": "Table Function Scan", + "Parent Relationship": "Inner", + "Parallel Aware": false, + "Async Capable": false, + "Table Function Name": "xmltable", + "Alias": "f", + "Disabled": false, + "Output": ["f.\"COUNTRY_NAME\"", "f.\"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": "(f.\"COUNTRY_NAME\" = 'Japan'::text)" + } + ] + } + } + ] (1 row) -- 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) SELECT xmltext(NULL); xmltext --------- (1 row) SELECT xmltext(''); xmltext --------- (1 row) SELECT xmltext(' '); xmltext --------- (1 row) SELECT xmltext('foo `$_-+?=*^%!|/\()[]{}'); xmltext -------------------------- foo `$_-+?=*^%!|/\()[]{} (1 row) SELECT xmltext('foo & <"bar">'); xmltext ----------------------------------- foo & <"bar"> (1 row) SELECT xmltext('x'|| '<P>73</P>'::xml || .42 || true || 'j'::char); xmltext --------------------------------- x<P>73</P>0.42truej (1 row)