| 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> |
| ^ |
| 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 order by id) 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) order by name)) FROM emp; |
| xmlelement |
| -------------------------------------------------------------------------------------------------------------------------------- |
| <employees><name>bill</name><name>cim</name><name>jeff</name><name>linda</name><name>sam</name><name>sharon</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 NO 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) |
| |
| -- 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 |
| ----------------------------------------------------- |
| Gather Motion 3:1 (slice1; segments: 3) |
| -> Nested Loop |
| -> Seq Scan on xmldata |
| -> Materialize |
| -> Table Function Scan on "xmltable" |
| Optimizer: Postgres query optimizer |
| (6 rows) |
| |
| EXPLAIN (COSTS OFF, VERBOSE) SELECT * FROM xmltableview1; |
| QUERY PLAN |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Gather Motion 3:1 (slice1; segments: 3) |
| Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name |
| -> 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 |
| -> Materialize |
| Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name |
| -> 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)) |
| Optimizer: Postgres query optimizer |
| Settings: optimizer=off |
| (13 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) |
| |
| \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 |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Gather Motion 3:1 (slice1; segments: 3) |
| Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name |
| -> 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 |
| -> Materialize |
| Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name |
| -> 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)) |
| Optimizer: Postgres query optimizer |
| Settings: optimizer=off |
| (13 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 |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Gather Motion 3:1 (slice1; segments: 3) |
| Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID" |
| -> Nested Loop |
| Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID" |
| -> Seq Scan on public.xmldata |
| Output: xmldata.data |
| -> Materialize |
| Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID" |
| -> 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) |
| Optimizer: Postgres query optimizer |
| Settings: optimizer=off |
| (14 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 |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Gather Motion 3:1 (slice1; segments: 3) |
| Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name |
| -> 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 |
| -> Materialize |
| Output: "xmltable".id, "xmltable"._id, "xmltable".country_name, "xmltable".country_id, "xmltable".region_id, "xmltable".size, "xmltable".unit, "xmltable".premier_name |
| -> 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) |
| Optimizer: Postgres query optimizer |
| Settings: optimizer=off |
| (14 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) |
| |
