Manual merge

sql/item_strfunc.cc:
  Auto merged

Docs/changelog-4.0.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
+"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
+<!--
+This is a dummy changelog file. Don't use it yet.
+It merges upward without conflict.
+-->
+<appendix id="news-4-0-x">
+
+ <title>
+  Changes in release 4.0.x
+ </title>
+
+ <para>
+  This is a dummy changelog file. Don't use it yet.
+ </para>
+
+</appendix>

mysql-test/r/func_str.result

@@ -277,6 +277,69 @@ SELECT bugdesc, REPLACE(bugdesc, 'xxxxxxxxxxxxxxxxxxxx', 'bbbbbbbbbbbbbbbbbbbb')
 bugdesc	REPLACE(bugdesc, 'xxxxxxxxxxxxxxxxxxxx', 'bbbbbbbbbbbbbbbbbbbb')
 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa	aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 drop table t1;
+CREATE TABLE t1 (id int(11) NOT NULL auto_increment, tmp text NOT NULL, KEY id (id)) TYPE=MyISAM;
+INSERT INTO t1 VALUES (1, 'a545f661efdd1fb66fdee3aab79945bf');
+SELECT 1 FROM t1 WHERE tmp=AES_DECRYPT(tmp,"password");
+1
+DROP TABLE t1;
+CREATE TABLE t1 (
+wid int(10) unsigned NOT NULL auto_increment,
+data_podp date default NULL,
+status_wnio enum('nowy','podp','real','arch') NOT NULL default 'nowy',
+PRIMARY KEY(wid)
+);
+INSERT INTO t1 VALUES (8,NULL,'real');
+INSERT INTO t1 VALUES (9,NULL,'nowy');
+SELECT elt(status_wnio,data_podp) FROM t1 GROUP BY wid;
+elt(status_wnio,data_podp)
+NULL
+NULL
+DROP TABLE t1;
+CREATE TABLE t1 (
+title text
+) TYPE=MyISAM;
+INSERT INTO t1 VALUES ('Congress reconvenes in September to debate welfare and adult education');
+INSERT INTO t1 VALUES ('House passes the CAREERS bill');
+SELECT CONCAT("</a>",RPAD("",(55 - LENGTH(title)),".")) from t1;
+CONCAT("</a>",RPAD("",(55 - LENGTH(title)),"."))
+NULL
+</a>..........................
+DROP TABLE t1;
+CREATE TABLE t1 (i int, j int);
+INSERT INTO t1 VALUES (1,1),(2,2);
+SELECT DISTINCT i, ELT(j, '345', '34') FROM t1;
+i	ELT(j, '345', '34')
+1	345
+2	34
+DROP TABLE t1;
+create table t1(a char(4));
+insert into t1 values ('one'),(NULL),('two'),('four');
+select a, quote(a), isnull(quote(a)), quote(a) is null, ifnull(quote(a), 'n') from t1;
+a	quote(a)	isnull(quote(a))	quote(a) is null	ifnull(quote(a), 'n')
+one	'one'	0	0	'one'
+NULL	NULL	0	0	NULL
+two	'two'	0	0	'two'
+four	'four'	0	0	'four'
+drop table t1;
+select trim(trailing 'foo' from 'foo');
+trim(trailing 'foo' from 'foo')
+
+select trim(leading 'foo' from 'foo');
+trim(leading 'foo' from 'foo')
+
+select quote(ltrim(concat('    ', 'a')));
+quote(ltrim(concat('    ', 'a')))
+'a'
+select quote(trim(concat('    ', 'a')));
+quote(trim(concat('    ', 'a')))
+'a'
+CREATE TABLE t1 SELECT 1 UNION SELECT 2 UNION SELECT 3;
+SELECT QUOTE('A') FROM t1;
+QUOTE('A')
+'A'
+'A'
+'A'
+DROP TABLE t1;
 CREATE TABLE t1 (id int(11) NOT NULL auto_increment, tmp text NOT NULL, KEY id (id)) ENGINE=MyISAM;
 INSERT INTO t1 VALUES (1, 'a545f661efdd1fb66fdee3aab79945bf');
 SELECT 1 FROM t1 WHERE tmp=AES_DECRYPT(tmp,"password");
@@ -739,3 +802,18 @@ ySQL
 SELECT CHAR_LENGTH(CHAR(NULL,121,83,81,'76')) as my_column;
 my_column
 4
+CREATE TABLE t1 (id int PRIMARY KEY, str char(255) NOT NULL);
+CREATE TABLE t2 (id int NOT NULL UNIQUE);
+INSERT INTO t2 VALUES (1),(2);
+INSERT INTO t1 VALUES (1, aes_encrypt('foo', 'bar'));
+INSERT INTO t1 VALUES (2, 'not valid');
+SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id;
+id	aes_decrypt(str, 'bar')
+1	foo
+2	NULL
+SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id
+ORDER BY t1.id;
+id	aes_decrypt(str, 'bar')
+1	foo
+2	NULL
+DROP TABLE t1, t2;

mysql-test/t/func_str.test

@@ -482,3 +482,19 @@ DROP TABLE t1;
 #
 SELECT CHAR(NULL,121,83,81,'76') as my_column;
 SELECT CHAR_LENGTH(CHAR(NULL,121,83,81,'76')) as my_column;
+#
+# Test case for bug #8669: null aes_decrypt result in order by query
+#
+
+CREATE TABLE t1 (id int PRIMARY KEY, str char(255) NOT NULL);
+CREATE TABLE t2 (id int NOT NULL UNIQUE);
+INSERT INTO t2 VALUES (1),(2);
+INSERT INTO t1 VALUES (1, aes_encrypt('foo', 'bar'));
+INSERT INTO t1 VALUES (2, 'not valid');
+
+SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id;
+SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id
+ ORDER BY t1.id;
+
+DROP TABLE t1, t2;
+

sql/item_strfunc.cc

@@ -235,6 +235,7 @@ String *Item_func_aes_decrypt::val_str(String *str)
 void Item_func_aes_decrypt::fix_length_and_dec()
 {
    max_length=args[0]->max_length;
+   maybe_null= 1;
 }