1CREATE EXTENSION xml2;
2select query_to_xml('select 1 as x',true,false,'');
3                         query_to_xml
4---------------------------------------------------------------
5 <table xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">+
6                                                              +
7 <row>                                                        +
8   <x>1</x>                                                   +
9 </row>                                                       +
10                                                              +
11 </table>                                                     +
12
13(1 row)
14
15select xslt_process( query_to_xml('select x from generate_series(1,5) as
16x',true,false,'')::text,
17$$<xsl:stylesheet version="1.0"
18               xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
19<xsl:output method="xml" indent="yes" />
20<xsl:template match="*">
21  <xsl:copy>
22     <xsl:copy-of select="@*" />
23     <xsl:apply-templates />
24  </xsl:copy>
25</xsl:template>
26<xsl:template match="comment()|processing-instruction()">
27  <xsl:copy />
28</xsl:template>
29</xsl:stylesheet>
30$$::text);
31                         xslt_process
32---------------------------------------------------------------
33 <?xml version="1.0"?>                                        +
34 <table xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">+
35                                                              +
36 <row>                                                        +
37   <x>1</x>                                                   +
38 </row>                                                       +
39                                                              +
40 <row>                                                        +
41   <x>2</x>                                                   +
42 </row>                                                       +
43                                                              +
44 <row>                                                        +
45   <x>3</x>                                                   +
46 </row>                                                       +
47                                                              +
48 <row>                                                        +
49   <x>4</x>                                                   +
50 </row>                                                       +
51                                                              +
52 <row>                                                        +
53   <x>5</x>                                                   +
54 </row>                                                       +
55                                                              +
56 </table>                                                     +
57
58(1 row)
59
60CREATE TABLE xpath_test (id integer NOT NULL, t xml);
61INSERT INTO xpath_test VALUES (1, '<doc><int>1</int></doc>');
62SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
63as t(id int4);
64 id
65----
66(0 rows)
67
68SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
69as t(id int4, doc int4);
70 id | doc
71----+-----
72  1 |   1
73(1 row)
74
75DROP TABLE xpath_test;
76CREATE TABLE xpath_test (id integer NOT NULL, t text);
77INSERT INTO xpath_test VALUES (1, '<doc><int>1</int></doc>');
78SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
79as t(id int4);
80 id
81----
82(0 rows)
83
84SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
85as t(id int4, doc int4);
86 id | doc
87----+-----
88  1 |   1
89(1 row)
90
91create table articles (article_id integer, article_xml xml, date_entered date);
92insert into articles (article_id, article_xml, date_entered)
93values (2, '<article><author>test</author><pages>37</pages></article>', now());
94SELECT * FROM
95xpath_table('article_id',
96            'article_xml',
97            'articles',
98            '/article/author|/article/pages|/article/title',
99            'date_entered > ''2003-01-01'' ')
100AS t(article_id integer, author text, page_count integer, title text);
101 article_id | author | page_count | title
102------------+--------+------------+-------
103          2 | test   |         37 |
104(1 row)
105
106-- this used to fail when invoked a second time
107select xslt_process('<aaa/>',$$<xsl:stylesheet version="1.0"
108xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
109<xsl:template match="@*|node()">
110      <xsl:copy>
111         <xsl:apply-templates select="@*|node()"/>
112      </xsl:copy>
113   </xsl:template>
114</xsl:stylesheet>$$)::xml;
115 xslt_process
116--------------
117 <aaa/>      +
118
119(1 row)
120
121select xslt_process('<aaa/>',$$<xsl:stylesheet version="1.0"
122xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
123<xsl:template match="@*|node()">
124      <xsl:copy>
125         <xsl:apply-templates select="@*|node()"/>
126      </xsl:copy>
127   </xsl:template>
128</xsl:stylesheet>$$)::xml;
129 xslt_process
130--------------
131 <aaa/>      +
132
133(1 row)
134
135create table t1 (id integer, xml_data xml);
136insert into t1 (id, xml_data)
137values
138(1, '<attributes><attribute name="attr_1">Some
139Value</attribute></attributes>');
140create index idx_xpath on t1 ( xpath_string
141('/attributes/attribute[@name="attr_1"]/text()', xml_data::text));
142SELECT xslt_process('<employee><name>cim</name><age>30</age><pay>400</pay></employee>'::text, $$<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
143  <xsl:output method="xml" omit-xml-declaration="yes" indent="yes"/>
144  <xsl:strip-space elements="*"/>
145  <xsl:param name="n1"/>
146  <xsl:param name="n2"/>
147  <xsl:param name="n3"/>
148  <xsl:param name="n4"/>
149  <xsl:param name="n5" select="'me'"/>
150  <xsl:template match="*">
151    <xsl:element name="samples">
152      <xsl:element name="sample">
153        <xsl:value-of select="$n1"/>
154      </xsl:element>
155      <xsl:element name="sample">
156        <xsl:value-of select="$n2"/>
157      </xsl:element>
158      <xsl:element name="sample">
159        <xsl:value-of select="$n3"/>
160      </xsl:element>
161      <xsl:element name="sample">
162        <xsl:value-of select="$n4"/>
163      </xsl:element>
164      <xsl:element name="sample">
165        <xsl:value-of select="$n5"/>
166      </xsl:element>
167      <xsl:element name="sample">
168        <xsl:value-of select="$n6"/>
169      </xsl:element>
170      <xsl:element name="sample">
171        <xsl:value-of select="$n7"/>
172      </xsl:element>
173      <xsl:element name="sample">
174        <xsl:value-of select="$n8"/>
175      </xsl:element>
176      <xsl:element name="sample">
177        <xsl:value-of select="$n9"/>
178      </xsl:element>
179      <xsl:element name="sample">
180        <xsl:value-of select="$n10"/>
181      </xsl:element>
182      <xsl:element name="sample">
183        <xsl:value-of select="$n11"/>
184      </xsl:element>
185      <xsl:element name="sample">
186        <xsl:value-of select="$n12"/>
187      </xsl:element>
188    </xsl:element>
189  </xsl:template>
190</xsl:stylesheet>$$::text, 'n1="v1",n2="v2",n3="v3",n4="v4",n5="v5",n6="v6",n7="v7",n8="v8",n9="v9",n10="v10",n11="v11",n12="v12"'::text);
191      xslt_process
192------------------------
193 <samples>             +
194   <sample>v1</sample> +
195   <sample>v2</sample> +
196   <sample>v3</sample> +
197   <sample>v4</sample> +
198   <sample>v5</sample> +
199   <sample>v6</sample> +
200   <sample>v7</sample> +
201   <sample>v8</sample> +
202   <sample>v9</sample> +
203   <sample>v10</sample>+
204   <sample>v11</sample>+
205   <sample>v12</sample>+
206 </samples>            +
207
208(1 row)
209
210-- possible security exploit
211SELECT xslt_process('<xml><foo>Hello from XML</foo></xml>',
212$$<xsl:stylesheet version="1.0"
213      xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
214      xmlns:sax="http://icl.com/saxon"
215      extension-element-prefixes="sax">
216
217  <xsl:template match="//foo">
218    <sax:output href="0wn3d.txt" method="text">
219      <xsl:value-of select="'0wn3d via xml2 extension and libxslt'"/>
220      <xsl:apply-templates/>
221    </sax:output>
222  </xsl:template>
223</xsl:stylesheet>$$);
224ERROR:  failed to apply stylesheet
225