931 lines
27 KiB
Plaintext
931 lines
27 KiB
Plaintext
CREATE TABLE xmltest (
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id int,
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data xml
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);
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INSERT INTO xmltest VALUES (1, '<value>one</value>');
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INSERT INTO xmltest VALUES (2, '<value>two</value>');
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INSERT INTO xmltest VALUES (3, '<wrong');
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ERROR: invalid XML content
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LINE 1: INSERT INTO xmltest VALUES (3, '<wrong');
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^
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DETAIL: line 1: Couldn't find end of Start Tag wrong line 1
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SELECT * FROM xmltest;
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id | data
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----+--------------------
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1 | <value>one</value>
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2 | <value>two</value>
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(2 rows)
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SELECT xmlcomment('test');
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xmlcomment
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-------------
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<!--test-->
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(1 row)
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SELECT xmlcomment('-test');
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xmlcomment
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--------------
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<!---test-->
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(1 row)
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SELECT xmlcomment('test-');
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ERROR: invalid XML comment
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SELECT xmlcomment('--test');
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ERROR: invalid XML comment
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SELECT xmlcomment('te st');
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xmlcomment
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--------------
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<!--te st-->
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(1 row)
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SELECT xmlconcat(xmlcomment('hello'),
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xmlelement(NAME qux, 'foo'),
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xmlcomment('world'));
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xmlconcat
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----------------------------------------
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<!--hello--><qux>foo</qux><!--world-->
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(1 row)
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SELECT xmlconcat('hello', 'you');
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xmlconcat
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-----------
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helloyou
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(1 row)
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SELECT xmlconcat(1, 2);
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ERROR: argument of XMLCONCAT must be type xml, not type integer
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LINE 1: SELECT xmlconcat(1, 2);
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^
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SELECT xmlconcat('bad', '<syntax');
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ERROR: invalid XML content
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LINE 1: SELECT xmlconcat('bad', '<syntax');
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^
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DETAIL: line 1: Couldn't find end of Start Tag syntax line 1
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SELECT xmlconcat('<foo/>', NULL, '<?xml version="1.1" standalone="no"?><bar/>');
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xmlconcat
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--------------
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<foo/><bar/>
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(1 row)
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SELECT xmlconcat('<?xml version="1.1"?><foo/>', NULL, '<?xml version="1.1" standalone="no"?><bar/>');
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xmlconcat
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-----------------------------------
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<?xml version="1.1"?><foo/><bar/>
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(1 row)
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SELECT xmlconcat(NULL);
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xmlconcat
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-----------
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(1 row)
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SELECT xmlconcat(NULL, NULL);
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xmlconcat
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-----------
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(1 row)
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SELECT xmlelement(name element,
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xmlattributes (1 as one, 'deuce' as two),
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'content');
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xmlelement
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------------------------------------------------
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<element one="1" two="deuce">content</element>
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(1 row)
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SELECT xmlelement(name element,
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xmlattributes ('unnamed and wrong'));
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ERROR: unnamed XML attribute value must be a column reference
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LINE 2: xmlattributes ('unnamed and wrong'));
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^
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SELECT xmlelement(name element, xmlelement(name nested, 'stuff'));
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xmlelement
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-------------------------------------------
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<element><nested>stuff</nested></element>
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(1 row)
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SELECT xmlelement(name employee, xmlforest(name, age, salary as pay)) FROM emp;
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xmlelement
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----------------------------------------------------------------------
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<employee><name>sharon</name><age>25</age><pay>1000</pay></employee>
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<employee><name>sam</name><age>30</age><pay>2000</pay></employee>
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<employee><name>bill</name><age>20</age><pay>1000</pay></employee>
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<employee><name>jeff</name><age>23</age><pay>600</pay></employee>
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<employee><name>cim</name><age>30</age><pay>400</pay></employee>
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<employee><name>linda</name><age>19</age><pay>100</pay></employee>
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(6 rows)
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SELECT xmlelement(name duplicate, xmlattributes(1 as a, 2 as b, 3 as a));
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ERROR: XML attribute name "a" appears more than once
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LINE 1: ...ment(name duplicate, xmlattributes(1 as a, 2 as b, 3 as a));
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^
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SELECT xmlelement(name num, 37);
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xmlelement
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---------------
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<num>37</num>
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(1 row)
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SELECT xmlelement(name foo, text 'bar');
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xmlelement
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----------------
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<foo>bar</foo>
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(1 row)
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SELECT xmlelement(name foo, xml 'bar');
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xmlelement
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----------------
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<foo>bar</foo>
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(1 row)
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SELECT xmlelement(name foo, text 'b<a/>r');
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xmlelement
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-------------------------
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<foo>b<a/>r</foo>
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(1 row)
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SELECT xmlelement(name foo, xml 'b<a/>r');
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xmlelement
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-------------------
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<foo>b<a/>r</foo>
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(1 row)
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SELECT xmlelement(name foo, array[1, 2, 3]);
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xmlelement
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-------------------------------------------------------------------------
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<foo><element>1</element><element>2</element><element>3</element></foo>
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(1 row)
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SET xmlbinary TO base64;
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SELECT xmlelement(name foo, bytea 'bar');
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xmlelement
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-----------------
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<foo>YmFy</foo>
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(1 row)
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SET xmlbinary TO hex;
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SELECT xmlelement(name foo, bytea 'bar');
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xmlelement
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-------------------
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<foo>626172</foo>
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(1 row)
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SELECT xmlelement(name foo, xmlattributes(true as bar));
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xmlelement
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-------------------
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<foo bar="true"/>
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(1 row)
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SELECT xmlelement(name foo, xmlattributes('2009-04-09 00:24:37'::timestamp as bar));
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xmlelement
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----------------------------------
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<foo bar="2009-04-09T00:24:37"/>
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(1 row)
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SELECT xmlelement(name foo, xmlattributes('infinity'::timestamp as bar));
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ERROR: timestamp out of range
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DETAIL: XML does not support infinite timestamp values.
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SELECT xmlelement(name foo, xmlattributes('<>&"''' as funny, xml 'b<a/>r' as funnier));
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xmlelement
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------------------------------------------------------------
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<foo funny="<>&"'" funnier="b<a/>r"/>
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(1 row)
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SELECT xmlparse(content '');
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xmlparse
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----------
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(1 row)
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SELECT xmlparse(content ' ');
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xmlparse
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----------
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(1 row)
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SELECT xmlparse(content 'abc');
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xmlparse
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----------
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abc
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(1 row)
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SELECT xmlparse(content '<abc>x</abc>');
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xmlparse
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--------------
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<abc>x</abc>
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(1 row)
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SELECT xmlparse(content '<invalidentity>&</invalidentity>');
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ERROR: invalid XML content
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DETAIL: line 1: xmlParseEntityRef: no name
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<invalidentity>&</invalidentity>
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^
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line 1: chunk is not well balanced
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SELECT xmlparse(content '<undefinedentity>&idontexist;</undefinedentity>');
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ERROR: invalid XML content
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DETAIL: line 1: Entity 'idontexist' not defined
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<undefinedentity>&idontexist;</undefinedentity>
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^
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line 1: chunk is not well balanced
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SELECT xmlparse(content '<invalidns xmlns=''<''/>');
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xmlparse
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---------------------------
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<invalidns xmlns='<'/>
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(1 row)
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SELECT xmlparse(content '<relativens xmlns=''relative''/>');
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xmlparse
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--------------------------------
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<relativens xmlns='relative'/>
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(1 row)
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SELECT xmlparse(content '<twoerrors>&idontexist;</unbalanced>');
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ERROR: invalid XML content
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DETAIL: line 1: Entity 'idontexist' not defined
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<twoerrors>&idontexist;</unbalanced>
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^
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line 1: Opening and ending tag mismatch: twoerrors line 1 and unbalanced
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line 1: chunk is not well balanced
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SELECT xmlparse(content '<nosuchprefix:tag/>');
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xmlparse
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---------------------
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<nosuchprefix:tag/>
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(1 row)
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SELECT xmlparse(document ' ');
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ERROR: invalid XML document
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DETAIL: line 1: Start tag expected, '<' not found
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SELECT xmlparse(document 'abc');
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ERROR: invalid XML document
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DETAIL: line 1: Start tag expected, '<' not found
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abc
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^
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SELECT xmlparse(document '<abc>x</abc>');
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xmlparse
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--------------
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<abc>x</abc>
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(1 row)
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SELECT xmlparse(document '<invalidentity>&</abc>');
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ERROR: invalid XML document
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DETAIL: line 1: xmlParseEntityRef: no name
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<invalidentity>&</abc>
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^
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line 1: Opening and ending tag mismatch: invalidentity line 1 and abc
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SELECT xmlparse(document '<undefinedentity>&idontexist;</abc>');
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ERROR: invalid XML document
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DETAIL: line 1: Entity 'idontexist' not defined
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<undefinedentity>&idontexist;</abc>
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^
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line 1: Opening and ending tag mismatch: undefinedentity line 1 and abc
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SELECT xmlparse(document '<invalidns xmlns=''<''/>');
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xmlparse
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---------------------------
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<invalidns xmlns='<'/>
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(1 row)
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SELECT xmlparse(document '<relativens xmlns=''relative''/>');
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xmlparse
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--------------------------------
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<relativens xmlns='relative'/>
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(1 row)
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SELECT xmlparse(document '<twoerrors>&idontexist;</unbalanced>');
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ERROR: invalid XML document
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DETAIL: line 1: Entity 'idontexist' not defined
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<twoerrors>&idontexist;</unbalanced>
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^
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line 1: Opening and ending tag mismatch: twoerrors line 1 and unbalanced
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SELECT xmlparse(document '<nosuchprefix:tag/>');
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xmlparse
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---------------------
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<nosuchprefix:tag/>
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(1 row)
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SELECT xmlpi(name foo);
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xmlpi
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---------
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<?foo?>
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(1 row)
|
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SELECT xmlpi(name xml);
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ERROR: invalid XML processing instruction
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DETAIL: XML processing instruction target name cannot be "xml".
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SELECT xmlpi(name xmlstuff);
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xmlpi
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--------------
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<?xmlstuff?>
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(1 row)
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SELECT xmlpi(name foo, 'bar');
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xmlpi
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-------------
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<?foo bar?>
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(1 row)
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SELECT xmlpi(name foo, 'in?>valid');
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ERROR: invalid XML processing instruction
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DETAIL: XML processing instruction cannot contain "?>".
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SELECT xmlpi(name foo, null);
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xmlpi
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-------
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(1 row)
|
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SELECT xmlpi(name xml, null);
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ERROR: invalid XML processing instruction
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DETAIL: XML processing instruction target name cannot be "xml".
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SELECT xmlpi(name xmlstuff, null);
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xmlpi
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-------
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(1 row)
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SELECT xmlpi(name "xml-stylesheet", 'href="mystyle.css" type="text/css"');
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xmlpi
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-------------------------------------------------------
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<?xml-stylesheet href="mystyle.css" type="text/css"?>
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(1 row)
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SELECT xmlpi(name foo, ' bar');
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xmlpi
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-------------
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<?foo bar?>
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(1 row)
|
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SELECT xmlroot(xml '<foo/>', version no value, standalone no value);
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xmlroot
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---------
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<foo/>
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(1 row)
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SELECT xmlroot(xml '<foo/>', version '2.0');
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xmlroot
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-----------------------------
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<?xml version="2.0"?><foo/>
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(1 row)
|
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|
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SELECT xmlroot(xml '<foo/>', version no value, standalone yes);
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xmlroot
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----------------------------------------------
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<?xml version="1.0" standalone="yes"?><foo/>
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(1 row)
|
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|
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SELECT xmlroot(xml '<?xml version="1.1"?><foo/>', version no value, standalone yes);
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xmlroot
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----------------------------------------------
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<?xml version="1.0" standalone="yes"?><foo/>
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(1 row)
|
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SELECT xmlroot(xmlroot(xml '<foo/>', version '1.0'), version '1.1', standalone no);
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xmlroot
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---------------------------------------------
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<?xml version="1.1" standalone="no"?><foo/>
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(1 row)
|
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SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value, standalone no);
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xmlroot
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---------------------------------------------
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<?xml version="1.0" standalone="no"?><foo/>
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(1 row)
|
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SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value, standalone no value);
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xmlroot
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---------
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<foo/>
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(1 row)
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SELECT xmlroot('<?xml version="1.1" standalone="yes"?><foo/>', version no value);
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xmlroot
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----------------------------------------------
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<?xml version="1.0" standalone="yes"?><foo/>
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(1 row)
|
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SELECT xmlroot (
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xmlelement (
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name gazonk,
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xmlattributes (
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'val' AS name,
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1 + 1 AS num
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),
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xmlelement (
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NAME qux,
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'foo'
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)
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),
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version '1.0',
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standalone yes
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);
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xmlroot
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------------------------------------------------------------------------------------------
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<?xml version="1.0" standalone="yes"?><gazonk name="val" num="2"><qux>foo</qux></gazonk>
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(1 row)
|
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|
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SELECT xmlserialize(content data as character varying(20)) FROM xmltest;
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xmlserialize
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--------------------
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<value>one</value>
|
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<value>two</value>
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(2 rows)
|
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|
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SELECT xmlserialize(content 'good' as char(10));
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xmlserialize
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--------------
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good
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(1 row)
|
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|
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SELECT xmlserialize(document 'bad' as text);
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ERROR: not an XML document
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SELECT xml '<foo>bar</foo>' IS DOCUMENT;
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?column?
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----------
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t
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(1 row)
|
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SELECT xml '<foo>bar</foo><bar>foo</bar>' IS DOCUMENT;
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?column?
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----------
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f
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(1 row)
|
|
|
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SELECT xml '<abc/>' IS NOT DOCUMENT;
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?column?
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----------
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f
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(1 row)
|
|
|
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SELECT xml 'abc' IS NOT DOCUMENT;
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?column?
|
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----------
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|
t
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(1 row)
|
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SELECT '<>' IS NOT DOCUMENT;
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ERROR: invalid XML content
|
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LINE 1: SELECT '<>' IS NOT DOCUMENT;
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^
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DETAIL: line 1: StartTag: invalid element name
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<>
|
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^
|
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SELECT xmlagg(data) FROM xmltest;
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xmlagg
|
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--------------------------------------
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<value>one</value><value>two</value>
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(1 row)
|
|
|
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SELECT xmlagg(data) FROM xmltest WHERE id > 10;
|
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xmlagg
|
|
--------
|
|
|
|
(1 row)
|
|
|
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SELECT xmlelement(name employees, xmlagg(xmlelement(name name, name))) FROM emp;
|
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xmlelement
|
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--------------------------------------------------------------------------------------------------------------------------------
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<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
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SELECT xmlpi(name ":::_xml_abc135.%-&_");
|
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xmlpi
|
|
-------------------------------------------------
|
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<?_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);
|
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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
|
|
^
|
|
SET XML OPTION CONTENT;
|
|
EXECUTE foo ('<bar/>');
|
|
xmlconcat
|
|
--------------
|
|
<foo/><bar/>
|
|
(1 row)
|
|
|
|
EXECUTE foo ('good');
|
|
xmlconcat
|
|
------------
|
|
<foo/>good
|
|
(1 row)
|
|
|
|
-- 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;
|
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CREATE VIEW xmlview5 AS SELECT xmlparse(content '<abc>x</abc>');
|
|
CREATE VIEW xmlview6 AS SELECT xmlpi(name foo, 'bar');
|
|
CREATE VIEW xmlview7 AS SELECT xmlroot(xml '<foo/>', version no value, standalone yes);
|
|
CREATE VIEW xmlview8 AS SELECT xmlserialize(content 'good' as char(10));
|
|
CREATE VIEW xmlview9 AS SELECT xmlserialize(content 'good' as text);
|
|
SELECT table_name, view_definition FROM information_schema.views
|
|
WHERE table_name LIKE 'xmlview%' ORDER BY 1;
|
|
table_name | view_definition
|
|
------------+-------------------------------------------------------------------------------------------------------------------
|
|
xmlview1 | SELECT xmlcomment('test'::text) AS xmlcomment;
|
|
xmlview2 | SELECT XMLCONCAT('hello'::xml, 'you'::xml) AS "xmlconcat";
|
|
xmlview3 | SELECT XMLELEMENT(NAME element, XMLATTRIBUTES(1 AS ":one:", 'deuce' AS two), 'content&') AS "xmlelement";
|
|
xmlview4 | SELECT XMLELEMENT(NAME employee, XMLFOREST(emp.name AS name, emp.age AS age, emp.salary AS pay)) AS "xmlelement"+
|
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| FROM emp;
|
|
xmlview5 | SELECT XMLPARSE(CONTENT '<abc>x</abc>'::text STRIP WHITESPACE) AS "xmlparse";
|
|
xmlview6 | SELECT XMLPI(NAME foo, 'bar'::text) AS "xmlpi";
|
|
xmlview7 | SELECT XMLROOT('<foo/>'::xml, VERSION NO VALUE, STANDALONE YES) AS "xmlroot";
|
|
xmlview8 | SELECT (XMLSERIALIZE(CONTENT 'good'::xml AS character(10)))::character(10) AS "xmlserialize";
|
|
xmlview9 | SELECT XMLSERIALIZE(CONTENT 'good'::xml AS text) AS "xmlserialize";
|
|
(9 rows)
|
|
|
|
-- Text XPath expressions evaluation
|
|
SELECT xpath('/value', data) FROM xmltest;
|
|
xpath
|
|
----------------------
|
|
{<value>one</value>}
|
|
{<value>two</value>}
|
|
(2 rows)
|
|
|
|
SELECT xpath(NULL, NULL) IS NULL FROM xmltest;
|
|
?column?
|
|
----------
|
|
t
|
|
t
|
|
(2 rows)
|
|
|
|
SELECT xpath('', '<!-- error -->');
|
|
ERROR: empty XPath expression
|
|
CONTEXT: SQL function "xpath" statement 1
|
|
SELECT xpath('//text()', '<local:data xmlns:local="http://127.0.0.1"><local:piece id="1">number one</local:piece><local:piece id="2" /></local:data>');
|
|
xpath
|
|
----------------
|
|
{"number one"}
|
|
(1 row)
|
|
|
|
SELECT xpath('//loc:piece/@id', '<local:data xmlns:local="http://127.0.0.1"><local:piece id="1">number one</local:piece><local:piece id="2" /></local:data>', ARRAY[ARRAY['loc', 'http://127.0.0.1']]);
|
|
xpath
|
|
-------
|
|
{1,2}
|
|
(1 row)
|
|
|
|
SELECT xpath('//loc:piece', '<local:data xmlns:local="http://127.0.0.1"><local:piece id="1">number one</local:piece><local:piece id="2" /></local:data>', ARRAY[ARRAY['loc', 'http://127.0.0.1']]);
|
|
xpath
|
|
------------------------------------------------------------------------------------------------------------------------------------------------
|
|
{"<local:piece xmlns:local=\"http://127.0.0.1\" id=\"1\">number one</local:piece>","<local:piece xmlns:local=\"http://127.0.0.1\" id=\"2\"/>"}
|
|
(1 row)
|
|
|
|
SELECT xpath('//loc:piece', '<local:data xmlns:local="http://127.0.0.1" xmlns="http://127.0.0.2"><local:piece id="1"><internal>number one</internal><internal2/></local:piece><local:piece id="2" /></local:data>', ARRAY[ARRAY['loc', 'http://127.0.0.1']]);
|
|
xpath
|
|
--------------------------------------------------------------------------------------
|
|
{"<local:piece xmlns:local=\"http://127.0.0.1\" xmlns=\"http://127.0.0.2\" id=\"1\">+
|
|
<internal>number one</internal> +
|
|
<internal2/> +
|
|
</local:piece>","<local:piece xmlns:local=\"http://127.0.0.1\" id=\"2\"/>"}
|
|
(1 row)
|
|
|
|
SELECT xpath('//b', '<a>one <b>two</b> three <b>etc</b></a>');
|
|
xpath
|
|
-------------------------
|
|
{<b>two</b>,<b>etc</b>}
|
|
(1 row)
|
|
|
|
SELECT xpath('//text()', '<root><</root>');
|
|
xpath
|
|
--------
|
|
{<}
|
|
(1 row)
|
|
|
|
SELECT xpath('//@value', '<root value="<"/>');
|
|
xpath
|
|
--------
|
|
{<}
|
|
(1 row)
|
|
|
|
SELECT xpath('''<<invalid>>''', '<root/>');
|
|
xpath
|
|
---------------------------
|
|
{<<invalid>>}
|
|
(1 row)
|
|
|
|
SELECT xpath('count(//*)', '<root><sub/><sub/></root>');
|
|
xpath
|
|
-------
|
|
{3}
|
|
(1 row)
|
|
|
|
SELECT xpath('count(//*)=0', '<root><sub/><sub/></root>');
|
|
xpath
|
|
---------
|
|
{false}
|
|
(1 row)
|
|
|
|
SELECT xpath('count(//*)=3', '<root><sub/><sub/></root>');
|
|
xpath
|
|
--------
|
|
{true}
|
|
(1 row)
|
|
|
|
SELECT xpath('name(/*)', '<root><sub/><sub/></root>');
|
|
xpath
|
|
--------
|
|
{root}
|
|
(1 row)
|
|
|
|
SELECT xpath('/nosuchtag', '<root/>');
|
|
xpath
|
|
-------
|
|
{}
|
|
(1 row)
|
|
|
|
-- 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)
|
|
|