database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

Bug#26518 XPath and variables problem

Browse Source 
Problem: XPath variables didn't work.
Fix: adding variables support,
both user-defined and sp local variables are now supported by XPath.
This commit is contained in:
bar@mysql.com/bar.myoffice.izhnet.ru
2007-05-08 13:32:29 +05:00
parent 68cc7dde31
commit 8bc4ded6aa
3 changed files with 253 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

115
mysql-test/r/xml.result
View File

@ -884,3 +884,118 @@ test
select ExtractValue('<a><self>test</self></a>', '/a/self');
ExtractValue('<a><self>test</self></a>', '/a/self')
test
set @i=1;
select ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]')
b1
set @i=2;
select ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]')
b2
set @i=NULL;
select ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]')
CREATE PROCEDURE spxml(xml VARCHAR(128))
BEGIN
DECLARE c INT;
DECLARE i INT DEFAULT 1;
SET c= ExtractValue(xml,'count(/a/b)');
SET @i= c;
WHILE i <= c DO
BEGIN
SELECT i, @i, ExtractValue(xml,'/a/b[$i]'), ExtractValue(xml,'/a/b[$@i]');
SET i= i + 1;
SET @i= @i - 1;
END;
END WHILE;
END|
call spxml('<a><b>b1</b><b>b2</b><b>b3</b></a>');
i @i ExtractValue(xml,'/a/b[$i]') ExtractValue(xml,'/a/b[$@i]')
1 3 b1 b3
i @i ExtractValue(xml,'/a/b[$i]') ExtractValue(xml,'/a/b[$@i]')
2 2 b2 b2
i @i ExtractValue(xml,'/a/b[$i]') ExtractValue(xml,'/a/b[$@i]')
3 1 b3 b1
drop procedure spxml;
Multiple matches, but no index specification
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b')
b1 b2
No matches
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/c');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/c')
Index out of range
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[-1]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[-1]')
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[10]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[10]')
With string-to-number conversion
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b["1"]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b["1"]')
b1
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b["1 and string"]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b["1 and string"]')
b1
Warnings:
Warning 1292 Truncated incorrect INTEGER value: '1 and string"]'
Warning 1292 Truncated incorrect INTEGER value: '1 and string"]'
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b["string and 1"]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b["string and 1"]')
Warnings:
Warning 1292 Truncated incorrect INTEGER value: 'string and 1"]'
Warning 1292 Truncated incorrect INTEGER value: 'string and 1"]'
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b["string"]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b["string"]')
Warnings:
Warning 1292 Truncated incorrect INTEGER value: 'string"]'
Warning 1292 Truncated incorrect INTEGER value: 'string"]'
String-to-number conversion from a user variable
SET @i='1';
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]')
b1
SET @i='1 and string';
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]')
b1
SET @i='string and 1';
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]')
SET @i='string';
SELECT ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]');
ExtractValue('<a><b>b1</b><b>b2</b></a>','/a/b[$@i]')
String-to-number conversion with a CHAR SP variable
CREATE PROCEDURE spxml(xml VARCHAR(128), i CHAR(16))
BEGIN
SELECT ExtractValue(xml,'/a/b[$i]');
END|
CALL spxml('<a><b>b1</b><b>b2</b></a>', '1');
ExtractValue(xml,'/a/b[$i]')
b1
CALL spxml('<a><b>b1</b><b>b2</b></a>', '1 and string');
ExtractValue(xml,'/a/b[$i]')
b1
Warnings:
Warning 1292 Truncated incorrect INTEGER value: '1 and string '
Warning 1292 Truncated incorrect INTEGER value: '1 and string '
CALL spxml('<a><b>b1</b><b>b2</b></a>', 'string and 1');
ExtractValue(xml,'/a/b[$i]')
Warnings:
Warning 1292 Truncated incorrect INTEGER value: 'string and 1 '
Warning 1292 Truncated incorrect INTEGER value: 'string and 1 '
CALL spxml('<a><b>b1</b><b>b2</b></a>', 'string');
ExtractValue(xml,'/a/b[$i]')
Warnings:
Warning 1292 Truncated incorrect INTEGER value: 'string '
Warning 1292 Truncated incorrect INTEGER value: 'string '
DROP PROCEDURE spxml;