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Diffstat (limited to 'src/test/regress/sql/xml.sql')
| -rw-r--r-- | src/test/regress/sql/xml.sql | 662 |
1 files changed, 662 insertions, 0 deletions
diff --git a/src/test/regress/sql/xml.sql b/src/test/regress/sql/xml.sql new file mode 100644 index 0000000..a591eea --- /dev/null +++ b/src/test/regress/sql/xml.sql @@ -0,0 +1,662 @@ +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'); + +SELECT * FROM xmltest; + +-- test non-throwing API, too +SELECT pg_input_is_valid('<value>one</value>', 'xml'); +SELECT pg_input_is_valid('<value>one</', 'xml'); +SELECT message FROM pg_input_error_info('<value>one</', 'xml'); +SELECT pg_input_is_valid('<?xml version="1.0" standalone="y"?><foo/>', 'xml'); +SELECT message FROM pg_input_error_info('<?xml version="1.0" standalone="y"?><foo/>', 'xml'); + + +SELECT xmlcomment('test'); +SELECT xmlcomment('-test'); +SELECT xmlcomment('test-'); +SELECT xmlcomment('--test'); +SELECT xmlcomment('te st'); + + +SELECT xmlconcat(xmlcomment('hello'), + xmlelement(NAME qux, 'foo'), + xmlcomment('world')); + +SELECT xmlconcat('hello', 'you'); +SELECT xmlconcat(1, 2); +SELECT xmlconcat('bad', '<syntax'); +SELECT xmlconcat('<foo/>', NULL, '<?xml version="1.1" standalone="no"?><bar/>'); +SELECT xmlconcat('<?xml version="1.1"?><foo/>', NULL, '<?xml version="1.1" standalone="no"?><bar/>'); +SELECT xmlconcat(NULL); +SELECT xmlconcat(NULL, NULL); + + +SELECT xmlelement(name element, + xmlattributes (1 as one, 'deuce' as two), + 'content'); + +SELECT xmlelement(name element, + xmlattributes ('unnamed and wrong')); + +SELECT xmlelement(name element, xmlelement(name nested, 'stuff')); + +SELECT xmlelement(name employee, xmlforest(name, age, salary as pay)) FROM emp; + +SELECT xmlelement(name duplicate, xmlattributes(1 as a, 2 as b, 3 as a)); + +SELECT xmlelement(name num, 37); +SELECT xmlelement(name foo, text 'bar'); +SELECT xmlelement(name foo, xml 'bar'); +SELECT xmlelement(name foo, text 'b<a/>r'); +SELECT xmlelement(name foo, xml 'b<a/>r'); +SELECT xmlelement(name foo, array[1, 2, 3]); +SET xmlbinary TO base64; +SELECT xmlelement(name foo, bytea 'bar'); +SET xmlbinary TO hex; +SELECT xmlelement(name foo, bytea 'bar'); + +SELECT xmlelement(name foo, xmlattributes(true as bar)); +SELECT xmlelement(name foo, xmlattributes('2009-04-09 00:24:37'::timestamp as bar)); +SELECT xmlelement(name foo, xmlattributes('infinity'::timestamp as bar)); +SELECT xmlelement(name foo, xmlattributes('<>&"''' as funny, xml 'b<a/>r' as funnier)); + + +SELECT xmlparse(content ''); +SELECT xmlparse(content ' '); +SELECT xmlparse(content 'abc'); +SELECT xmlparse(content '<abc>x</abc>'); +SELECT xmlparse(content '<invalidentity>&</invalidentity>'); +SELECT xmlparse(content '<undefinedentity>&idontexist;</undefinedentity>'); +SELECT xmlparse(content '<invalidns xmlns=''<''/>'); +SELECT xmlparse(content '<relativens xmlns=''relative''/>'); +SELECT xmlparse(content '<twoerrors>&idontexist;</unbalanced>'); +SELECT xmlparse(content '<nosuchprefix:tag/>'); + +SELECT xmlparse(document ' '); +SELECT xmlparse(document 'abc'); +SELECT xmlparse(document '<abc>x</abc>'); +SELECT xmlparse(document '<invalidentity>&</abc>'); +SELECT xmlparse(document '<undefinedentity>&idontexist;</abc>'); +SELECT xmlparse(document '<invalidns xmlns=''<''/>'); +SELECT xmlparse(document '<relativens xmlns=''relative''/>'); +SELECT xmlparse(document '<twoerrors>&idontexist;</unbalanced>'); +SELECT xmlparse(document '<nosuchprefix:tag/>'); + + +SELECT xmlpi(name foo); +SELECT xmlpi(name xml); +SELECT xmlpi(name xmlstuff); +SELECT xmlpi(name foo, 'bar'); +SELECT xmlpi(name foo, 'in?>valid'); +SELECT xmlpi(name foo, null); +SELECT xmlpi(name xml, null); +SELECT xmlpi(name xmlstuff, null); +SELECT xmlpi(name "xml-stylesheet", 'href="mystyle.css" type="text/css"'); +SELECT xmlpi(name foo, ' bar'); + + +SELECT xmlroot(xml '<foo/>', version no value, standalone no value); +SELECT xmlroot(xml '<foo/>', version '2.0'); +SELECT xmlroot(xml '<foo/>', version no value, standalone yes); +SELECT xmlroot(xml '<?xml version="1.1"?><foo/>', version no value, standalone yes); +SELECT xmlroot(xmlroot(xml '<foo/>', version '1.0'), version '1.1', standalone no); +SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value, standalone no); +SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value, standalone no value); +SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value); + + +SELECT xmlroot ( + xmlelement ( + name gazonk, + xmlattributes ( + 'val' AS name, + 1 + 1 AS num + ), + xmlelement ( + NAME qux, + 'foo' + ) + ), + version '1.0', + standalone yes +); + + +SELECT xmlserialize(content data as character varying(20)) FROM xmltest; +SELECT xmlserialize(content 'good' as char(10)); +SELECT xmlserialize(document 'bad' as text); + +-- indent +SELECT xmlserialize(DOCUMENT '<foo><bar><val x="y">42</val></bar></foo>' AS text INDENT); +SELECT xmlserialize(CONTENT '<foo><bar><val x="y">42</val></bar></foo>' AS text INDENT); +-- no indent +SELECT xmlserialize(DOCUMENT '<foo><bar><val x="y">42</val></bar></foo>' AS text NO INDENT); +SELECT xmlserialize(CONTENT '<foo><bar><val x="y">42</val></bar></foo>' AS text NO INDENT); +-- indent non singly-rooted xml +SELECT xmlserialize(DOCUMENT '<foo>73</foo><bar><val x="y">42</val></bar>' AS text INDENT); +SELECT xmlserialize(CONTENT '<foo>73</foo><bar><val x="y">42</val></bar>' AS text INDENT); +-- 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); +SELECT xmlserialize(CONTENT 'text node<foo>73</foo>text node<bar><val x="y">42</val></bar>' AS text INDENT); +-- 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); +SELECT xmlserialize(CONTENT '<foo><bar><val x="y">42</val><val x="y">text node<val>73</val></val></bar></foo>' AS text INDENT); +-- indent empty string +SELECT xmlserialize(DOCUMENT '' AS text INDENT); +SELECT xmlserialize(CONTENT '' AS text INDENT); +-- whitespaces +SELECT xmlserialize(DOCUMENT ' ' AS text INDENT); +SELECT xmlserialize(CONTENT ' ' AS text INDENT); +-- indent null +SELECT xmlserialize(DOCUMENT NULL AS text INDENT); +SELECT xmlserialize(CONTENT NULL AS text INDENT); +-- indent with XML declaration +SELECT xmlserialize(DOCUMENT '<?xml version="1.0" encoding="UTF-8"?><foo><bar><val>73</val></bar></foo>' AS text INDENT); +SELECT xmlserialize(CONTENT '<?xml version="1.0" encoding="UTF-8"?><foo><bar><val>73</val></bar></foo>' AS text INDENT); +-- indent containing DOCTYPE declaration +SELECT xmlserialize(DOCUMENT '<!DOCTYPE a><a/>' AS text INDENT); +SELECT xmlserialize(CONTENT '<!DOCTYPE a><a/>' AS text INDENT); +-- indent xml with empty element +SELECT xmlserialize(DOCUMENT '<foo><bar></bar></foo>' AS text INDENT); +SELECT xmlserialize(CONTENT '<foo><bar></bar></foo>' AS text INDENT); +-- '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); +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); + +SELECT xml '<foo>bar</foo>' IS DOCUMENT; +SELECT xml '<foo>bar</foo><bar>foo</bar>' IS DOCUMENT; +SELECT xml '<abc/>' IS NOT DOCUMENT; +SELECT xml 'abc' IS NOT DOCUMENT; +SELECT '<>' IS NOT DOCUMENT; + + +SELECT xmlagg(data) FROM xmltest; +SELECT xmlagg(data) FROM xmltest WHERE id > 10; +SELECT xmlelement(name employees, xmlagg(xmlelement(name name, name))) FROM emp; + + +-- Check mapping SQL identifier to XML name + +SELECT xmlpi(name ":::_xml_abc135.%-&_"); +SELECT xmlpi(name "123"); + + +PREPARE foo (xml) AS SELECT xmlconcat('<foo/>', $1); + +SET XML OPTION DOCUMENT; +EXECUTE foo ('<bar/>'); +EXECUTE foo ('bad'); +SELECT xml '<!DOCTYPE a><a/><b/>'; + +SET XML OPTION CONTENT; +EXECUTE foo ('<bar/>'); +EXECUTE foo ('good'); +SELECT xml '<!-- in SQL:2006+ a doc is content too--> <?y z?> <!DOCTYPE a><a/>'; +SELECT xml '<?xml version="1.0"?> <!-- hi--> <!DOCTYPE a><a/>'; +SELECT xml '<!DOCTYPE a><a/>'; +SELECT xml '<!-- hi--> oops <!DOCTYPE a><a/>'; +SELECT xml '<!-- hi--> <oops/> <!DOCTYPE a><a/>'; +SELECT xml '<!DOCTYPE a><a/><b/>'; + + +-- Test backwards parsing + +CREATE VIEW xmlview1 AS SELECT xmlcomment('test'); +CREATE VIEW xmlview2 AS SELECT xmlconcat('hello', 'you'); +CREATE VIEW xmlview3 AS SELECT xmlelement(name element, xmlattributes (1 as ":one:", 'deuce' as two), 'content&'); +CREATE VIEW xmlview4 AS SELECT xmlelement(name employee, xmlforest(name, age, salary as pay)) FROM emp; +CREATE VIEW xmlview5 AS SELECT xmlparse(content '<abc>x</abc>'); +CREATE VIEW xmlview6 AS SELECT xmlpi(name foo, 'bar'); +CREATE VIEW xmlview7 AS SELECT xmlroot(xml '<foo/>', version no value, standalone yes); +CREATE VIEW xmlview8 AS SELECT xmlserialize(content 'good' as char(10)); +CREATE VIEW xmlview9 AS SELECT xmlserialize(content 'good' as text); + +SELECT table_name, view_definition FROM information_schema.views + WHERE table_name LIKE 'xmlview%' ORDER BY 1; + +-- Text XPath expressions evaluation + +SELECT xpath('/value', data) FROM xmltest; +SELECT xpath(NULL, NULL) IS NULL FROM xmltest; +SELECT xpath('', '<!-- error -->'); +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>'); +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']]); +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']]); +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']]); +SELECT xpath('//b', '<a>one <b>two</b> three <b>etc</b></a>'); +SELECT xpath('//text()', '<root><</root>'); +SELECT xpath('//@value', '<root value="<"/>'); +SELECT xpath('''<<invalid>>''', '<root/>'); +SELECT xpath('count(//*)', '<root><sub/><sub/></root>'); +SELECT xpath('count(//*)=0', '<root><sub/><sub/></root>'); +SELECT xpath('count(//*)=3', '<root><sub/><sub/></root>'); +SELECT xpath('name(/*)', '<root><sub/><sub/></root>'); +SELECT xpath('/nosuchtag', '<root/>'); +SELECT xpath('root', '<root/>'); + +-- 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>'); +SELECT xmlexists('//town[text() = ''Cwmbran'']' PASSING BY REF '<towns><town>Bidford-on-Avon</town><town>Cwmbran</town><town>Bristol</town></towns>'); +SELECT xmlexists('count(/nosuchtag)' PASSING BY REF '<root/>'); +SELECT xpath_exists('//town[text() = ''Toronto'']','<towns><town>Bidford-on-Avon</town><town>Cwmbran</town><town>Bristol</town></towns>'::xml); +SELECT xpath_exists('//town[text() = ''Cwmbran'']','<towns><town>Bidford-on-Avon</town><town>Cwmbran</town><town>Bristol</town></towns>'::xml); +SELECT xpath_exists('count(/nosuchtag)', '<root/>'::xml); + +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); +SELECT COUNT(id) FROM xmltest WHERE xmlexists('/menu/beer' PASSING BY REF data BY REF); +SELECT COUNT(id) FROM xmltest WHERE xmlexists('/menu/beers' PASSING BY REF data); +SELECT COUNT(id) FROM xmltest WHERE xmlexists('/menu/beers/name[text() = ''Molson'']' PASSING BY REF data); + +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/menu/beer',data); +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/menu/beers',data); +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/menu/beers/name[text() = ''Molson'']',data); +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/myns:menu/myns:beer',data,ARRAY[ARRAY['myns','http://myns.com']]); +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/myns:menu/myns:beers',data,ARRAY[ARRAY['myns','http://myns.com']]); +SELECT COUNT(id) FROM xmltest WHERE xpath_exists('/myns:menu/myns:beers/myns:name[text() = ''Molson'']',data,ARRAY[ARRAY['myns','http://myns.com']]); + +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); + +-- Test xml_is_well_formed and variants + +SELECT xml_is_well_formed_document('<foo>bar</foo>'); +SELECT xml_is_well_formed_document('abc'); +SELECT xml_is_well_formed_content('<foo>bar</foo>'); +SELECT xml_is_well_formed_content('abc'); + +SET xmloption TO DOCUMENT; +SELECT xml_is_well_formed('abc'); +SELECT xml_is_well_formed('<>'); +SELECT xml_is_well_formed('<abc/>'); +SELECT xml_is_well_formed('<foo>bar</foo>'); +SELECT xml_is_well_formed('<foo>bar</foo'); +SELECT xml_is_well_formed('<foo><bar>baz</foo>'); +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>'); +SELECT xml_is_well_formed('<pg:foo xmlns:pg="http://postgresql.org/stuff">bar</my:foo>'); +SELECT xml_is_well_formed('<pg:foo xmlns:pg="http://postgresql.org/stuff">bar</pg:foo>'); +SELECT xml_is_well_formed('<invalidentity>&</abc>'); +SELECT xml_is_well_formed('<undefinedentity>&idontexist;</abc>'); +SELECT xml_is_well_formed('<invalidns xmlns=''<''/>'); +SELECT xml_is_well_formed('<relativens xmlns=''relative''/>'); +SELECT xml_is_well_formed('<twoerrors>&idontexist;</unbalanced>'); + +SET xmloption TO CONTENT; +SELECT xml_is_well_formed('abc'); + +-- 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=''<''/>'); +\set VERBOSITY default + +-- Again, the XML isn't well-formed for namespace purposes +SELECT xpath('/*', '<nosuchprefix:tag/>'); + +-- XPath deprecates relative namespaces, but they're not supposed to +-- throw an error, only a warning. +SELECT xpath('/*', '<relativens xmlns=''relative''/>'); + +-- External entity references should not leak filesystem information. +SELECT XMLPARSE(DOCUMENT '<!DOCTYPE foo [<!ENTITY c SYSTEM "/etc/passwd">]><foo>&c;</foo>'); +SELECT XMLPARSE(DOCUMENT '<!DOCTYPE foo [<!ENTITY c SYSTEM "/etc/no.such.file">]><foo>&c;</foo>'); +-- 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>'); + +-- 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'); + +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; + +\sv xmltableview1 + +EXPLAIN (COSTS OFF) SELECT * FROM xmltableview1; +EXPLAIN (COSTS OFF, VERBOSE) SELECT * FROM xmltableview1; + +-- errors +SELECT * FROM XMLTABLE (ROW () PASSING null COLUMNS v1 timestamp) AS f (v1, v2); + +-- 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'); + +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; + +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'); + +SELECT * FROM XMLTABLE('.' + PASSING '<foo/>' + COLUMNS a text PATH 'foo/namespace::node()'); + +-- 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; + +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int); +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); +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); +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS id int PATH '@id'); +SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS id FOR ORDINALITY); +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 '.'); +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 './*'); + +SELECT * FROM xmltable('/root' passing '<root><element>a1a<!-- aaaa -->a2a<?aaaaa?> <!--z--> bbbb<x>xxx</x>cccc</element></root>' COLUMNS element text); +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 + +-- 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); + +-- 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); +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); + +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'); + +-- 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'; + +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'; + +-- 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'); + +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; + +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; + +-- 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'); + +-- 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; + +-- 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; + +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'); +SELECT xmltable.* FROM xmltest2, LATERAL xmltable(('/d/r/' || lower(_path) || 'c') PASSING x COLUMNS a int PATH '.'); +SELECT xmltable.* FROM xmltest2, LATERAL xmltable(('/d/r/' || lower(_path) || 'c') PASSING x COLUMNS a int PATH 'x' DEFAULT ascii(_path) - 54); + +-- 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(.)'); +\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 '/'); +\x + +SELECT * FROM XMLTABLE('.' PASSING XMLELEMENT(NAME a) columns a varchar(20) PATH '"<foo/>"', b xml PATH '"<foo/>"'); |