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--
-- first, define the functions. Turn off echoing so that expected file
-- does not depend on contents of pgxml.sql.
--
SET client_min_messages = warning;
\set ECHO none
RESET client_min_messages;
select xslt_process(
'<table xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<x>1</x>
</row>
<row>
<x>2</x>
</row>
<row>
<x>3</x>
</row>
<row>
<x>4</x>
</row>
<row>
<x>5</x>
</row>
</table>'::text,
$$<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes" />
<xsl:template match="*">
<xsl:copy>
<xsl:copy-of select="@*" />
<xsl:apply-templates />
</xsl:copy>
</xsl:template>
<xsl:template match="comment()|processing-instruction()">
<xsl:copy />
</xsl:template>
</xsl:stylesheet>
$$::text);
xslt_process
-----------------------
<?xml version="1.0"?>
<table xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<x>1</x>
</row>
<row>
<x>2</x>
</row>
<row>
<x>3</x>
</row>
<row>
<x>4</x>
</row>
<row>
<x>5</x>
</row>
</table>
(1 row)
CREATE TABLE xpath_test (id integer NOT NULL, t text);
INSERT INTO xpath_test VALUES (1, '<doc><int>1</int></doc>');
SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
as t(id int4);
id
----
(0 rows)
SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
as t(id int4, doc int4);
id | doc
----+-----
1 | 1
(1 row)
create table articles (article_id integer, article_xml text, date_entered date);
insert into articles (article_id, article_xml, date_entered)
values (2, '<article><author>test</author><pages>37</pages></article>', now());
SELECT * FROM
xpath_table('article_id',
'article_xml',
'articles',
'/article/author|/article/pages|/article/title',
'date_entered > ''2003-01-01'' ')
AS t(article_id integer, author text, page_count integer, title text);
article_id | author | page_count | title
------------+--------+------------+-------
2 | test | 37 |
(1 row)
-- this used to fail when invoked a second time
select xslt_process('<aaa/>',$$<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>$$);
xslt_process
-----------------------
<?xml version="1.0"?>
<aaa/>
(1 row)
select xslt_process('<aaa/>',$$<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>$$);
xslt_process
-----------------------
<?xml version="1.0"?>
<aaa/>
(1 row)
create table t1 (id integer, xml_data text);
insert into t1 (id, xml_data)
values
(1, '<attributes><attribute name="attr_1">Some
Value</attribute></attributes>');
select xpath_string('/attributes/attribute[@name="attr_1"]/text()', xml_data)
from t1;
xpath_string
--------------
(1 row)
|
