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Fix for bug#39182: Binary log producing incompatible character set query

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from stored procedure. 

Problem: we replace all references to local variables in stored procedures     
with NAME_CONST(name, value) logging to the binary log. However, if the
value's collation differs we might get an 'illegal mix of collation'           
error as we don't pass the collation to the function.

Fix: pass the value's collation to NAME_CONST().

Note: actually we should pass to NAME_CONST() the value's derivation as well.
It's impossible without the parser modifying. Now we always set the 
derivation to DERIVATION_IMPLICIT, the same as local variables have.


mysql-test/r/binlog.result:
  Fix for bug#39182: Binary log producing incompatible character set query
  from stored procedure.
    - test result.
mysql-test/r/ctype_cp932_binlog.result:
  Fix for bug#39182: Binary log producing incompatible character set query
  from stored procedure.
    - results adjusted.
mysql-test/r/rpl_sp.result:
  Fix for bug#39182: Binary log producing incompatible character set query
  from stored procedure.
    - results adjusted.
mysql-test/t/binlog.test:
  Fix for bug#39182: Binary log producing incompatible character set query
  from stored procedure.
    - test case.
sql/item.cc:
  Fix for bug#39182: Binary log producing incompatible character set query
  from stored procedure.
    - allow NAME_CONST() to get _charset'foo' COLLATE 'bar' strings
  (see Item_func_set_collation).
sql/sp_head.cc:
  Fix for bug#39182: Binary log producing incompatible character set query
  from stored procedure. 
    - pass the value's collation to NAME_CONST().
This commit is contained in:
Ramil Kalimullin 2008-10-01 14:48:47 +05:00
parent bf09a809a6
commit d3e317d16b
6 changed files with 82 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
mysql-test/r/binlog.result
View File

@ -582,4 +582,35 @@ master-bin.000001 4 Format_desc 1 98 Server version, Binlog ver: 4
master-bin.000001 98 Query 1 219 use `test`; create table t1 (a bigint unsigned, b bigint(20) unsigned)
master-bin.000001 219 Query 1 343 use `test`; insert into t1 values (9999999999999999,14632475938453979136)
master-bin.000001 343 Query 1 419 use `test`; drop table t1
CREATE DATABASE bug39182 DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;
USE bug39182;
CREATE TABLE t1 (a VARCHAR(255) COLLATE utf8_unicode_ci)
DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
CREATE PROCEDURE p1()
BEGIN
DECLARE s1 VARCHAR(255);
SET s1= "test";
CREATE TEMPORARY TABLE tmp1
SELECT * FROM t1 WHERE a LIKE CONCAT("%", s1, "%");
SELECT
COLLATION(NAME_CONST('s1', _utf8'test')) c1,
COLLATION(NAME_CONST('s1', _utf8'test' COLLATE utf8_unicode_ci)) c2,
COLLATION(s1) c3,
COERCIBILITY(NAME_CONST('s1', _utf8'test')) d1,
COERCIBILITY(NAME_CONST('s1', _utf8'test' COLLATE utf8_unicode_ci)) d2,
COERCIBILITY(s1) d3;
DROP TEMPORARY TABLE tmp1;
END//
CALL p1();
c1 c2 c3 d1 d2 d3
utf8_general_ci utf8_unicode_ci utf8_unicode_ci 2 2 2
SHOW BINLOG EVENTS FROM 1285;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 1285 Query 1 1483 use `bug39182`; CREATE TEMPORARY TABLE tmp1
SELECT * FROM t1 WHERE a LIKE CONCAT("%", NAME_CONST('s1',_utf8'test' COLLATE 'utf8_unicode_ci'), "%")
master-bin.000001 1483 Query 1 1575 use `bug39182`; DROP TEMPORARY TABLE tmp1
DROP PROCEDURE p1;
DROP TABLE t1;
DROP DATABASE bug39182;
USE test;
End of 5.0 tests

6
mysql-test/r/ctype_cp932_binlog.result
View File

@ -40,6 +40,6 @@ IN ind DECIMAL(10,2))
BEGIN
INSERT INTO t4 VALUES (ins1, ins2, ind);
END
master-bin.000001 777 Query 1 988 use `test`; INSERT INTO t4 VALUES ( NAME_CONST('ins1',_latin1 0x466F6F2773206120426172), NAME_CONST('ins2',_cp932 0xED40ED41ED42), NAME_CONST('ind',47.93))
master-bin.000001 988 Query 1 1077 use `test`; DROP PROCEDURE bug18293
master-bin.000001 1077 Query 1 1156 use `test`; DROP TABLE t4
master-bin.000001 777 Query 1 1044 use `test`; INSERT INTO t4 VALUES ( NAME_CONST('ins1',_latin1 0x466F6F2773206120426172 COLLATE 'latin1_swedish_ci'), NAME_CONST('ins2',_cp932 0xED40ED41ED42 COLLATE 'cp932_japanese_ci'), NAME_CONST('ind',47.93))
master-bin.000001 1044 Query 1 1133 use `test`; DROP PROCEDURE bug18293
master-bin.000001 1133 Query 1 1212 use `test`; DROP TABLE t4

4
mysql-test/r/rpl_sp.result
View File

@ -502,7 +502,7 @@ master-bin.000001 # Query 1 # use `test`; DROP TABLE IF EXISTS t1
master-bin.000001 # Query 1 # use `test`; CREATE TABLE t1(col VARCHAR(10))
master-bin.000001 # Query 1 # use `test`; CREATE DEFINER=`root`@`localhost` PROCEDURE `p1`(arg VARCHAR(10))
INSERT INTO t1 VALUES(arg)
master-bin.000001 # Query 1 # use `test`; INSERT INTO t1 VALUES( NAME_CONST('arg',_latin1'test'))
master-bin.000001 # Query 1 # use `test`; INSERT INTO t1 VALUES( NAME_CONST('arg',_latin1'test' COLLATE 'latin1_swedish_ci'))
master-bin.000001 # Query 1 # use `test`; DROP PROCEDURE p1
master-bin.000001 # Query 1 # use `test`; CREATE DEFINER=`root`@`localhost` PROCEDURE `p1`()
SET @a = 1
@ -841,7 +841,7 @@ CREATE DEFINER=`root`@`localhost` PROCEDURE `p1`(arg VARCHAR(10))
INSERT INTO t1 VALUES(arg)
/*!*/;
SET TIMESTAMP=t/*!*/;
INSERT INTO t1 VALUES( NAME_CONST('arg',_latin1'test'))
INSERT INTO t1 VALUES( NAME_CONST('arg',_latin1'test' COLLATE 'latin1_swedish_ci'))
/*!*/;
SET TIMESTAMP=t/*!*/;
DROP PROCEDURE p1

38
mysql-test/t/binlog.test
View File

@ -123,4 +123,42 @@ drop table t1;
--replace_regex /\/\* xid=.* \*\//\/* XID *\// /table_id: [0-9]+/table_id: #/ /Server ver: [^,]*,/Server version,/
show binlog events from 0;
#
# Bug #39182: Binary log producing incompatible character set query from
# stored procedure.
#
CREATE DATABASE bug39182 DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;
USE bug39182;
CREATE TABLE t1 (a VARCHAR(255) COLLATE utf8_unicode_ci)
DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
DELIMITER //;
CREATE PROCEDURE p1()
BEGIN
DECLARE s1 VARCHAR(255);
SET s1= "test";
CREATE TEMPORARY TABLE tmp1
SELECT * FROM t1 WHERE a LIKE CONCAT("%", s1, "%");
SELECT
COLLATION(NAME_CONST('s1', _utf8'test')) c1,
COLLATION(NAME_CONST('s1', _utf8'test' COLLATE utf8_unicode_ci)) c2,
COLLATION(s1) c3,
COERCIBILITY(NAME_CONST('s1', _utf8'test')) d1,
COERCIBILITY(NAME_CONST('s1', _utf8'test' COLLATE utf8_unicode_ci)) d2,
COERCIBILITY(s1) d3;
DROP TEMPORARY TABLE tmp1;
END//
DELIMITER ;//
CALL p1();
SHOW BINLOG EVENTS FROM 1285;
DROP PROCEDURE p1;
DROP TABLE t1;
DROP DATABASE bug39182;
USE test;
--echo End of 5.0 tests

8
sql/item.cc
View File

@ -1217,10 +1217,12 @@ Item_name_const::Item_name_const(Item *name_arg, Item *val):
if (!(valid_args= name_item->basic_const_item() &&
(value_item->basic_const_item() ||
((value_item->type() == FUNC_ITEM) &&
(((Item_func *) value_item)->functype() ==
Item_func::NEG_FUNC) &&
((((Item_func *) value_item)->functype() ==
Item_func::COLLATE_FUNC) ||
((((Item_func *) value_item)->functype() ==
Item_func::NEG_FUNC) &&
(((Item_func *) value_item)->key_item()->type() !=
FUNC_ITEM)))))
FUNC_ITEM)))))))
my_error(ER_WRONG_ARGUMENTS, MYF(0), "NAME_CONST");
Item::maybe_null= TRUE;
}

3
sql/sp_head.cc
View File

@ -123,6 +123,9 @@ sp_get_item_value(THD *thd, Item *item, String *str)
if (cs->escape_with_backslash_is_dangerous)
buf.append(' ');
append_query_string(cs, result, &buf);
buf.append(" COLLATE '");
buf.append(item->collation.collation->name);
buf.append('\'');
str->copy(buf);
return str;