This is a backport of the two patches for Bug #28299:

To-number conversion warnings work differenly with CHAR 
and VARCHAR sp variables.

The original revision-IDs are:
  staale.smedseng@sun.com-20081124095339-2qdvzkp0rn1ljs30
  staale.smedseng@sun.com-20081125104611-rtxic5d12e83ag2o
                                                
The patch provides ER_TRUNCATED_WRONG_VALUE warning messages
for conversion of VARCHAR to numberic values, in line with
messages provided for CHAR conversions. Conversions are
checked for success, and the message is emitted in case
failure.
                                                
The tests are amended to accept the added warning messages,
and explicit conversion of ON/OFF values is added for
statements checking system variables. In test
rpl.rpl_switch_stm_row_mixed checking for warnings is
temporarily disabled for one statement, as this generates
warning messages for strings that vary between executions.

mysql-test/r/func_math.result

@@ -382,6 +382,9 @@ y
 SELECT b DIV 900 y FROM t1 GROUP BY y;
 y
 0
+Warnings:
+Warning	1292	Truncated incorrect INTEGER value: 'str1'
+Warning	1292	Truncated incorrect INTEGER value: 'str2'
 SELECT c DIV 900 y FROM t1 GROUP BY y;
 y
 0

mysql-test/r/func_str.result

@@ -1151,6 +1151,9 @@ INSERT INTO t2 VALUES (0), (1);
 SELECT * FROM t1, t2 WHERE num=str;
 str	num
 notnumber	0
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'notnumber'
+Warning	1292	Truncated incorrect DOUBLE value: 'notnumber'
 SELECT * FROM t1, t2 WHERE num=substring(str from 1 for 6);
 str	num
 notnumber	0

mysql-test/r/profiling.result

@@ -298,6 +298,13 @@ id
 1
 2
 3
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'hello'
+Warning	1292	Truncated incorrect DOUBLE value: 'hello'
+Warning	1292	Truncated incorrect DOUBLE value: 'hello'
+Warning	1292	Truncated incorrect DOUBLE value: 'hello'
+Warning	1292	Truncated incorrect DOUBLE value: 'hello'
+Warning	1292	Truncated incorrect DOUBLE value: 'hello'
 select @@profiling;
 @@profiling
 1

mysql-test/r/ps_1general.result

@@ -279,6 +279,9 @@ b	char(10)	YES		NULL
 SET @arg00=1;
 execute stmt4 using @arg00;
 Field	Type	Null	Key	Default	Extra
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'a'
+Warning	1292	Truncated incorrect DOUBLE value: 'b'
 prepare stmt4 from ' show columns from t2 from test like ''a%'' ';
 execute stmt4;
 Field	Type	Null	Key	Default	Extra

mysql-test/r/sp-vars.result

@@ -1158,3 +1158,30 @@ f1()	@b
 0	abc
 drop function f1;
 drop table t1;
+
+---------------------------------------------------------------
+BUG#28299
+---------------------------------------------------------------
+
+CREATE PROCEDURE ctest()
+BEGIN
+DECLARE i CHAR(16);
+DECLARE j INT;
+SET i= 'string';
+SET j= 1 + i;
+END|
+CALL ctest();
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'string          '
+DROP PROCEDURE ctest;
+CREATE PROCEDURE vctest()
+BEGIN
+DECLARE i VARCHAR(16);
+DECLARE j INT;
+SET i= 'string';
+SET j= 1 + i;
+END|
+CALL vctest();
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'string'
+DROP PROCEDURE vctest;

mysql-test/r/type_varchar.result

@@ -489,3 +489,23 @@ Warnings:
 Warning	1292	Truncated incorrect INTEGER value: '1a'
 Warning	1292	Truncated incorrect INTEGER value: 't'
 DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(16));
+INSERT INTO t1 VALUES ('5'), ('s'), ('');
+SELECT 5 = a FROM t1;
+5 = a
+1
+0
+0
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 's'
+DROP TABLE t1;
+CREATE TABLE t1 (a CHAR(16));
+INSERT INTO t1 VALUES ('5'), ('s'), ('');
+SELECT 5 = a FROM t1;
+5 = a
+1
+0
+0
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 's               '
+DROP TABLE t1;

mysql-test/suite/funcs_1/r/innodb_views.result

@@ -22843,6 +22843,9 @@ SELECT * FROM v1 order by 2;
 f1	my_sqrt
 ABC	0
 ABC	1.73205080756888
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT SQRT('DEF');
 SQRT('DEF')
 0
@@ -22863,7 +22866,12 @@ SELECT * FROM v2 order by 2;
 f1	my_sqrt
 ABC	0
 ABC	1.73205080756888
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 CREATE TABLE t2 AS SELECT f1, SQRT(f2) my_sqrt FROM t1;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0
@@ -22871,6 +22879,8 @@ f1	ABC
 my_sqrt	1.73205080756888
 DROP TABLE t2;
 CREATE TABLE t2 AS SELECT * FROM v1;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0
@@ -22878,6 +22888,8 @@ f1	ABC
 my_sqrt	1.73205080756888
 DROP TABLE t2;
 CREATE TABLE t2 AS SELECT * FROM v2;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0

mysql-test/suite/funcs_1/r/memory_views.result

@@ -22845,6 +22845,9 @@ SELECT * FROM v1 order by 2;
 f1	my_sqrt
 ABC	0
 ABC	1.73205080756888
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT SQRT('DEF');
 SQRT('DEF')
 0
@@ -22865,7 +22868,12 @@ SELECT * FROM v2 order by 2;
 f1	my_sqrt
 ABC	0
 ABC	1.73205080756888
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 CREATE TABLE t2 AS SELECT f1, SQRT(f2) my_sqrt FROM t1;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0
@@ -22873,6 +22881,8 @@ f1	ABC
 my_sqrt	1.73205080756888
 DROP TABLE t2;
 CREATE TABLE t2 AS SELECT * FROM v1;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0
@@ -22880,6 +22890,8 @@ f1	ABC
 my_sqrt	1.73205080756888
 DROP TABLE t2;
 CREATE TABLE t2 AS SELECT * FROM v2;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0

mysql-test/suite/funcs_1/r/ndb_views.result

@@ -22843,6 +22843,10 @@ SELECT * FROM v1 order by 2;
 f1	my_sqrt
 ABC	0
 ABC	1.73205080756888
++ Warnings:
++ Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
++ Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
+
 SELECT SQRT('DEF');
 SQRT('DEF')
 0
@@ -22863,7 +22867,12 @@ SELECT * FROM v2 order by 2;
 f1	my_sqrt
 ABC	0
 ABC	1.73205080756888
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 CREATE TABLE t2 AS SELECT f1, SQRT(f2) my_sqrt FROM t1;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0
@@ -22871,6 +22880,8 @@ f1	ABC
 my_sqrt	1.73205080756888
 DROP TABLE t2;
 CREATE TABLE t2 AS SELECT * FROM v1;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0
@@ -22878,6 +22889,8 @@ f1	ABC
 my_sqrt	1.73205080756888
 DROP TABLE t2;
 CREATE TABLE t2 AS SELECT * FROM v2;
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'DEF'
 SELECT * FROM t2 order by 2;
 f1	ABC
 my_sqrt	0

mysql-test/suite/rpl/t/rpl_switch_stm_row_mixed.test

@@ -145,7 +145,9 @@ create table t3 select 1 union select UUID();
 create table t4 select * from t1 where 3 in (select 1 union select 2 union select UUID() union select 3);
 create table t5 select * from t1 where 3 in (select 1 union select 2 union select curdate() union select 3);
 # what if UUID() is first:
+--disable_warnings
 insert into t5 select UUID() from t1 where 3 in (select 1 union select 2 union select 3 union select * from t4);
+--enable_warnings
 
 # inside a stored procedure
 

mysql-test/suite/sys_vars/r/auto_commit_basic.result

@@ -54,19 +54,19 @@ ERROR HY000: Variable 'autocommit' is a SESSION variable and can't be used with
 SELECT @@global.autocommit;
 ERROR HY000: Variable 'autocommit' is a SESSION variable
 '#----------------------FN_DYNVARS_003_06------------------------#'
-SELECT @@session.autocommit = VARIABLE_VALUE 
+SELECT IF(@@session.autocommit, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='autocommit';
-@@session.autocommit = VARIABLE_VALUE
-0
+IF(@@session.autocommit, "ON", "OFF") = VARIABLE_VALUE
+1
 Bug # 34839: Values in variable and information_schema do not match for autocommit
 '#----------------------FN_DYNVARS_003_07------------------------#'
 SET @@autocommit = 1;
-SELECT @@autocommit = VARIABLE_VALUE
+SELECT IF(@@autocommit, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='autocommit';
-@@autocommit = VARIABLE_VALUE
-0
+IF(@@autocommit, "ON", "OFF") = VARIABLE_VALUE
+1
 '#---------------------FN_DYNVARS_003_08-------------------------#'
 SET @@autocommit = OFF;
 SELECT @@autocommit;

mysql-test/suite/sys_vars/r/automatic_sp_privileges_basic.result

@@ -53,11 +53,11 @@ ERROR HY000: Variable 'automatic_sp_privileges' is a GLOBAL variable and should
 SELECT @@session.automatic_sp_privileges;
 ERROR HY000: Variable 'automatic_sp_privileges' is a GLOBAL variable
 '#----------------------FN_DYNVARS_004_06------------------------#'
-SELECT @@global.automatic_sp_privileges = VARIABLE_VALUE 
+SELECT IF(@@global.automatic_sp_privileges, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='automatic_sp_privileges';
-@@global.automatic_sp_privileges = VARIABLE_VALUE
-0
+IF(@@global.automatic_sp_privileges, "ON", "OFF") = VARIABLE_VALUE
+1
 'Bug# 34839: Values in variable and information_schema donot match'
 '#---------------------FN_DYNVARS_004_07----------------------#'
 SET @@global.automatic_sp_privileges = OFF;

mysql-test/suite/sys_vars/r/big_tables_basic.result

@@ -49,11 +49,11 @@ ERROR HY000: Variable 'big_tables' is a SESSION variable and can't be used with
 SELECT @@global.big_tables;
 ERROR HY000: Variable 'big_tables' is a SESSION variable
 '#----------------------FN_DYNVARS_005_05------------------------#'
-SELECT @@big_tables = VARIABLE_VALUE 
+SELECT IF(@@big_tables, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='big_tables';
-@@big_tables = VARIABLE_VALUE
-0
+IF(@@big_tables, "ON", "OFF") = VARIABLE_VALUE
+1
 Bug # 34839: Values in variable and information_schema do not match for autocommit
 '#---------------------FN_DYNVARS_005_06----------------------#'
 SET @@big_tables = OFF;

mysql-test/suite/sys_vars/r/engine_condition_pushdown_basic.result

@@ -103,10 +103,10 @@ SELECT @@session.engine_condition_pushdown AS res_is_1;
 res_is_1
 1
 '#----------------------FN_DYNVARS_028_06------------------------#'
-SELECT @@global.engine_condition_pushdown = VARIABLE_VALUE 
+SELECT IF(@@global.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='engine_condition_pushdown';
-@@global.engine_condition_pushdown = VARIABLE_VALUE
+IF(@@global.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@global.engine_condition_pushdown;
 @@global.engine_condition_pushdown
@@ -117,11 +117,11 @@ WHERE VARIABLE_NAME='engine_condition_pushdown';
 VARIABLE_VALUE
 OFF
 '#----------------------FN_DYNVARS_028_07------------------------#'
-SELECT @@session.engine_condition_pushdown = VARIABLE_VALUE 
+SELECT IF(@@session.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES
 WHERE VARIABLE_NAME='engine_condition_pushdown';
-@@session.engine_condition_pushdown = VARIABLE_VALUE
-0
+IF(@@session.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE
+1
 SELECT @@session.engine_condition_pushdown;
 @@session.engine_condition_pushdown
 1

mysql-test/suite/sys_vars/r/flush_basic.result

@@ -63,11 +63,11 @@ ERROR HY000: Variable 'flush' is a GLOBAL variable and should be set with SET GL
 SELECT @@session.flush;
 ERROR HY000: Variable 'flush' is a GLOBAL variable
 '#----------------------FN_DYNVARS_030_06------------------------#'
-SELECT @@global.flush = VARIABLE_VALUE 
+SELECT IF(@@global.flush, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='flush';
-@@global.flush = VARIABLE_VALUE
-0
+IF(@@global.flush, "ON", "OFF") = VARIABLE_VALUE
+1
 '#---------------------FN_DYNVARS_030_07----------------------#'
 SET @@global.flush = TRUE;
 SELECT @@global.flush;

mysql-test/suite/sys_vars/r/foreign_key_checks_basic.result

@@ -65,10 +65,10 @@ SELECT count(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARI
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_032_07------------------------#'
-SELECT @@session.foreign_key_checks = VARIABLE_VALUE 
+SELECT IF(@@session.foreign_key_checks, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='foreign_key_checks';
-@@session.foreign_key_checks = VARIABLE_VALUE
+IF(@@session.foreign_key_checks, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.foreign_key_checks;
 @@session.foreign_key_checks

mysql-test/suite/sys_vars/r/general_log_basic.result

@@ -47,10 +47,10 @@ ERROR HY000: Variable 'general_log' is a GLOBAL variable and should be set with
 SELECT @@session.general_log;
 ERROR HY000: Variable 'general_log' is a GLOBAL variable
 '#----------------------FN_DYNVARS_004_05------------------------#'
-SELECT @@global.general_log = VARIABLE_VALUE 
+SELECT IF(@@global.general_log, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='general_log';
-@@global.general_log = VARIABLE_VALUE
+IF(@@global.general_log, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_004_06----------------------#'
 SET @@global.general_log = 0;

mysql-test/suite/sys_vars/r/innodb_checksums_basic.result

@@ -12,11 +12,11 @@ COUNT(@@GLOBAL.innodb_checksums)
 1
 1 Expected
 '#---------------------BS_STVARS_023_03----------------------#'
-SELECT @@GLOBAL.innodb_checksums = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.innodb_checksums, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_checksums';
-@@GLOBAL.innodb_checksums = VARIABLE_VALUE
-0
+IF(@@GLOBAL.innodb_checksums, "ON", "OFF") = VARIABLE_VALUE
+1
 1 Expected
 SELECT COUNT(@@GLOBAL.innodb_checksums);
 COUNT(@@GLOBAL.innodb_checksums)

mysql-test/suite/sys_vars/r/innodb_doublewrite_basic.result

@@ -12,11 +12,11 @@ COUNT(@@GLOBAL.innodb_doublewrite)
 1
 1 Expected
 '#---------------------BS_STVARS_026_03----------------------#'
-SELECT @@GLOBAL.innodb_doublewrite = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.innodb_doublewrite, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_doublewrite';
-@@GLOBAL.innodb_doublewrite = VARIABLE_VALUE
-0
+IF(@@GLOBAL.innodb_doublewrite, "ON", "OFF") = VARIABLE_VALUE
+1
 1 Expected
 SELECT COUNT(@@GLOBAL.innodb_doublewrite);
 COUNT(@@GLOBAL.innodb_doublewrite)

mysql-test/suite/sys_vars/r/innodb_locks_unsafe_for_binlog_basic.result

@@ -12,10 +12,10 @@ COUNT(@@GLOBAL.innodb_locks_unsafe_for_binlog)
 1
 1 Expected
 '#---------------------BS_STVARS_031_03----------------------#'
-SELECT @@GLOBAL.innodb_locks_unsafe_for_binlog = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.innodb_locks_unsafe_for_binlog, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_locks_unsafe_for_binlog';
-@@GLOBAL.innodb_locks_unsafe_for_binlog = VARIABLE_VALUE
+IF(@@GLOBAL.innodb_locks_unsafe_for_binlog, "ON", "OFF") = VARIABLE_VALUE
 1
 1 Expected
 SELECT COUNT(@@GLOBAL.innodb_locks_unsafe_for_binlog);

mysql-test/suite/sys_vars/r/innodb_rollback_on_timeout_basic.result

@@ -12,10 +12,10 @@ COUNT(@@GLOBAL.innodb_rollback_on_timeout)
 1
 1 Expected
 '#---------------------BS_STVARS_039_03----------------------#'
-SELECT @@GLOBAL.innodb_rollback_on_timeout = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.innodb_rollback_on_timeout, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_rollback_on_timeout';
-@@GLOBAL.innodb_rollback_on_timeout = VARIABLE_VALUE
+IF(@@GLOBAL.innodb_rollback_on_timeout, "ON", "OFF") = VARIABLE_VALUE
 1
 1 Expected
 SELECT COUNT(@@GLOBAL.innodb_rollback_on_timeout);

mysql-test/suite/sys_vars/r/innodb_support_xa_basic.result

@@ -105,10 +105,10 @@ SELECT @@session.innodb_support_xa AS res_is_1;
 res_is_1
 1
 '#----------------------FN_DYNVARS_046_06------------------------#'
-SELECT @@global.innodb_support_xa =
+SELECT IF(@@global.innodb_support_xa, "ON", "OFF") =
 VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_support_xa';
-@@global.innodb_support_xa =
+IF(@@global.innodb_support_xa, "ON", "OFF") =
 VARIABLE_VALUE
 1
 SELECT @@global.innodb_support_xa;
@@ -119,12 +119,12 @@ WHERE VARIABLE_NAME='innodb_support_xa';
 VARIABLE_VALUE
 OFF
 '#----------------------FN_DYNVARS_046_07------------------------#'
-SELECT @@session.innodb_support_xa =
+SELECT IF(@@session.innodb_support_xa, "ON", "OFF") =
 VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES
 WHERE VARIABLE_NAME='innodb_support_xa';
-@@session.innodb_support_xa =
+IF(@@session.innodb_support_xa, "ON", "OFF") =
 VARIABLE_VALUE
-0
+1
 SELECT @@session.innodb_support_xa;
 @@session.innodb_support_xa
 1

mysql-test/suite/sys_vars/r/innodb_table_locks_basic.result

@@ -99,10 +99,10 @@ SELECT @@session.innodb_table_locks AS res_is_1;
 res_is_1
 1
 '#----------------------FN_DYNVARS_046_06------------------------#'
-SELECT @@global.innodb_table_locks =
+SELECT IF(@@global.innodb_table_locks, "ON", "OFF") =
 VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_table_locks';
-@@global.innodb_table_locks =
+IF(@@global.innodb_table_locks, "ON", "OFF") =
 VARIABLE_VALUE
 1
 SELECT @@global.innodb_table_locks;
@@ -113,12 +113,12 @@ WHERE VARIABLE_NAME='innodb_table_locks';
 VARIABLE_VALUE
 OFF
 '#----------------------FN_DYNVARS_046_07------------------------#'
-SELECT @@session.innodb_table_locks =
+SELECT IF(@@session.innodb_table_locks, "ON", "OFF") =
 VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES
 WHERE VARIABLE_NAME='innodb_table_locks';
-@@session.innodb_table_locks =
+IF(@@session.innodb_table_locks, "ON", "OFF") =
 VARIABLE_VALUE
-0
+1
 SELECT @@session.innodb_table_locks;
 @@session.innodb_table_locks
 1

mysql-test/suite/sys_vars/r/keep_files_on_create_basic.result

@@ -120,16 +120,16 @@ SELECT @@session.keep_files_on_create;
 @@session.keep_files_on_create
 0
 '#------------------FN_DYNVARS_054_06-----------------------#'
-SELECT @@global.keep_files_on_create = VARIABLE_VALUE 
+SELECT IF(@@global.keep_files_on_create, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='keep_files_on_create';
-@@global.keep_files_on_create = VARIABLE_VALUE
+IF(@@global.keep_files_on_create, "ON", "OFF") = VARIABLE_VALUE
 1
 '#------------------FN_DYNVARS_054_07-----------------------#'
-SELECT @@session.keep_files_on_create = VARIABLE_VALUE 
+SELECT IF(@@session.keep_files_on_create, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='keep_files_on_create';
-@@session.keep_files_on_create = VARIABLE_VALUE
+IF(@@session.keep_files_on_create, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_001_08----------------------#'
 SET @@keep_files_on_create = OFF;

mysql-test/suite/sys_vars/r/local_infile_basic.result

@@ -53,11 +53,11 @@ ERROR HY000: Variable 'local_infile' is a GLOBAL variable and should be set with
 SELECT @@session.local_infile = 1;
 ERROR HY000: Variable 'local_infile' is a GLOBAL variable
 '#----------------------FN_DYNVARS_018_06------------------------#'
-SELECT @@global.local_infile = VARIABLE_VALUE 
+SELECT IF(@@global.local_infile, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='local_infile';
-@@global.local_infile = VARIABLE_VALUE
-0
+IF(@@global.local_infile, "ON", "OFF") = VARIABLE_VALUE
+1
 '#---------------------FN_DYNVARS_018_07----------------------#'
 SET @@global.local_infile = OFF;
 SELECT @@global.local_infile;

mysql-test/suite/sys_vars/r/log_bin_trust_function_creators_basic.result

@@ -69,12 +69,12 @@ ERROR 42000: Variable 'log_bin_trust_function_creators' can't be set to the valu
 SET @@global.log_bin_trust_function_creators = test;
 ERROR 42000: Variable 'log_bin_trust_function_creators' can't be set to the value of 'test'
 '#------------------FN_DYNVARS_063_06-----------------------#'
-SELECT @@global.log_bin_trust_function_creators = VARIABLE_VALUE 
+SELECT IF(@@global.log_bin_trust_function_creators, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='log_bin_trust_function_creators';
-@@global.log_bin_trust_function_creators = VARIABLE_VALUE
+IF(@@global.log_bin_trust_function_creators, "ON", "OFF") = VARIABLE_VALUE
 1
-SELECT @@session.log_bin_trust_function_creators = VARIABLE_VALUE 
+SELECT IF(@@session.log_bin_trust_function_creators, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='log_bin_trust_function_creators';
 ERROR HY000: Variable 'log_bin_trust_function_creators' is a GLOBAL variable

mysql-test/suite/sys_vars/r/log_queries_not_using_indexes_basic.result

@@ -102,3 +102,6 @@ ERROR 42000: You have an error in your SQL syntax; check the manual that corresp
 SET @@SESSION log_queries_not_using_indexes= TRUE;
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'log_queries_not_using_indexes= TRUE' at line 1
 SET @@global.log_queries_not_using_indexes= @start_value;
+SELECT IF(@@GLOBAL.log_queries_not_using_indexes, "ON", "OFF") = VARIABLE_VALUE
+IF(@@GLOBAL.log_queries_not_using_indexes, "ON", "OFF") = VARIABLE_VALUE
+1

mysql-test/suite/sys_vars/r/low_priority_updates_basic.result

@@ -118,16 +118,16 @@ ERROR 42000: Variable 'low_priority_updates' can't be set to the value of '65550
 SET @@session.low_priority_updates = test;
 ERROR 42000: Variable 'low_priority_updates' can't be set to the value of 'test'
 '#------------------FN_DYNVARS_069_06-----------------------#'
-SELECT @@global.low_priority_updates = VARIABLE_VALUE 
+SELECT IF(@@global.low_priority_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='low_priority_updates';
-@@global.low_priority_updates = VARIABLE_VALUE
+IF(@@global.low_priority_updates, "ON", "OFF") = VARIABLE_VALUE
 1
 '#------------------FN_DYNVARS_069_07-----------------------#'
-SELECT @@session.low_priority_updates = VARIABLE_VALUE 
+SELECT IF(@@session.low_priority_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='low_priority_updates';
-@@session.low_priority_updates = VARIABLE_VALUE
+IF(@@session.low_priority_updates, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_069_08----------------------#'
 SET @@low_priority_updates = FALSE;

mysql-test/suite/sys_vars/r/myisam_use_mmap_basic.result

@@ -11,10 +11,10 @@ COUNT(@@GLOBAL.myisam_use_mmap)
 1
 1 Expected
 '#---------------------BS_STVARS_042_03----------------------#'
-SELECT @@GLOBAL.myisam_use_mmap = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.myisam_use_mmap, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='myisam_use_mmap';
-@@GLOBAL.myisam_use_mmap = VARIABLE_VALUE
+IF(@@GLOBAL.myisam_use_mmap, "ON", "OFF") = VARIABLE_VALUE
 1
 1 Expected
 SELECT COUNT(@@GLOBAL.myisam_use_mmap);

mysql-test/suite/sys_vars/r/new_basic.result

@@ -117,16 +117,16 @@ ERROR 42000: Variable 'new' can't be set to the value of '65550'
 SET @@session.new = test;
 ERROR 42000: Variable 'new' can't be set to the value of 'test'
 '#------------------FN_DYNVARS_113_06-----------------------#'
-SELECT @@global.new = VARIABLE_VALUE 
+SELECT IF(@@global.new, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='new';
-@@global.new = VARIABLE_VALUE
+IF(@@global.new, "ON", "OFF") = VARIABLE_VALUE
 1
 '#------------------FN_DYNVARS_113_07-----------------------#'
-SELECT @@session.new = VARIABLE_VALUE 
+SELECT IF(@@session.new, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='new';
-@@session.new = VARIABLE_VALUE
+IF(@@session.new, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_113_08----------------------#'
 SET @@new = OFF;

mysql-test/suite/sys_vars/r/old_passwords_basic.result

@@ -113,16 +113,16 @@ ERROR 42000: Variable 'old_passwords' can't be set to the value of '65550'
 SET @@session.old_passwords = test;
 ERROR 42000: Variable 'old_passwords' can't be set to the value of 'test'
 '#------------------FN_DYNVARS_114_06-----------------------#'
-SELECT @@global.old_passwords = VARIABLE_VALUE 
+SELECT IF(@@global.old_passwords, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='old_passwords';
-@@global.old_passwords = VARIABLE_VALUE
+IF(@@global.old_passwords, "ON", "OFF") = VARIABLE_VALUE
 1
 '#------------------FN_DYNVARS_114_07-----------------------#'
-SELECT @@session.old_passwords = VARIABLE_VALUE 
+SELECT IF(@@session.old_passwords, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='old_passwords';
-@@session.old_passwords = VARIABLE_VALUE
+IF(@@session.old_passwords, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_114_08----------------------#'
 SET @@old_passwords = OFF;

mysql-test/suite/sys_vars/r/query_cache_wlock_invalidate_basic.result

@@ -103,10 +103,10 @@ SELECT @@session.query_cache_wlock_invalidate AS res_is_1;
 res_is_1
 1
 '#----------------------FN_DYNVARS_135_06------------------------#'
-SELECT @@global.query_cache_wlock_invalidate = VARIABLE_VALUE 
+SELECT IF(@@global.query_cache_wlock_invalidate, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='query_cache_wlock_invalidate';
-@@global.query_cache_wlock_invalidate = VARIABLE_VALUE
+IF(@@global.query_cache_wlock_invalidate, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@global.query_cache_wlock_invalidate;
 @@global.query_cache_wlock_invalidate
@@ -117,11 +117,11 @@ WHERE VARIABLE_NAME='query_cache_wlock_invalidate';
 VARIABLE_VALUE
 OFF
 '#----------------------FN_DYNVARS_135_07------------------------#'
-SELECT @@session.query_cache_wlock_invalidate = VARIABLE_VALUE 
+SELECT IF(@@session.query_cache_wlock_invalidate, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='query_cache_wlock_invalidate';
-@@session.query_cache_wlock_invalidate = VARIABLE_VALUE
-0
+IF(@@session.query_cache_wlock_invalidate, "ON", "OFF") = VARIABLE_VALUE
+1
 SELECT @@session.query_cache_wlock_invalidate;
 @@session.query_cache_wlock_invalidate
 1

mysql-test/suite/sys_vars/r/read_only_basic.result

@@ -82,15 +82,15 @@ SELECT @@read_only;
 @@read_only
 0
 '#----------------------FN_DYNVARS_139_06------------------------#'
-SELECT @@global.read_only = VARIABLE_VALUE 
+SELECT IF(@@global.read_only, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='read_only';
-@@global.read_only = VARIABLE_VALUE
+IF(@@global.read_only, "ON", "OFF") = VARIABLE_VALUE
 1
-SELECT @@read_only = VARIABLE_VALUE 
+SELECT IF(@@read_only, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='read_only';
-@@read_only = VARIABLE_VALUE
+IF(@@read_only, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_139_07----------------------#'
 SET @@global.read_only = 1;

mysql-test/suite/sys_vars/r/relay_log_purge_basic.result

@@ -69,10 +69,10 @@ ERROR HY000: Variable 'relay_log_purge' is a GLOBAL variable and should be set w
 SELECT @@session.relay_log_purge;
 ERROR HY000: Variable 'relay_log_purge' is a GLOBAL variable
 '#----------------------FN_DYNVARS_141_06------------------------#'
-SELECT @@global.relay_log_purge = VARIABLE_VALUE 
+SELECT IF(@@global.relay_log_purge, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='relay_log_purge';
-@@global.relay_log_purge = VARIABLE_VALUE
+IF(@@global.relay_log_purge, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_141_07----------------------#'
 SET @@global.relay_log_purge = 1;

mysql-test/suite/sys_vars/r/secure_auth_basic.result

@@ -68,11 +68,11 @@ WHERE VARIABLE_NAME='secure_auth';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_143_07------------------------#'
-SELECT @@global.secure_auth = VARIABLE_VALUE 
+SELECT IF(@@global.secure_auth, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='secure_auth';
-@@global.secure_auth = VARIABLE_VALUE
-0
+IF(@@global.secure_auth, "ON", "OFF") = VARIABLE_VALUE
+1
 SELECT @@global.secure_auth;
 @@global.secure_auth
 1

mysql-test/suite/sys_vars/r/slave_allow_batching_basic.result

@@ -8,5 +8,8 @@ ERROR HY000: Unknown system variable 'slave_allow_batching'
 '#-------------------FN_DYNVARS_145_05----------------------------#'
 '#----------------------FN_DYNVARS_145_06------------------------#'
 '#----------------------FN_DYNVARS_145_07------------------------#'
+SELECT IF(@@global.slave_allow_batching, "ON", "OFF") = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='slave_allow_batching';
+IF(@@global.slave_allow_batching, "ON", "OFF") = VARIABLE_VALUE
+1
 '#---------------------FN_DYNVARS_145_08-------------------------#'
 '#---------------------FN_DYNVARS_145_09----------------------#'

mysql-test/suite/sys_vars/r/slave_compressed_protocol_basic.result

@@ -66,11 +66,11 @@ WHERE VARIABLE_NAME='slave_compressed_protocol';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_147_07------------------------#'
-SELECT @@global.slave_compressed_protocol = VARIABLE_VALUE 
+SELECT IF(@@global.slave_compressed_protocol, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='slave_compressed_protocol';
-@@global.slave_compressed_protocol = VARIABLE_VALUE
-0
+IF(@@global.slave_compressed_protocol, "ON", "OFF") = VARIABLE_VALUE
+1
 SELECT @@global.slave_compressed_protocol;
 @@global.slave_compressed_protocol
 1

mysql-test/suite/sys_vars/r/slow_query_log_basic.result

@@ -47,10 +47,10 @@ ERROR HY000: Variable 'slow_query_log' is a GLOBAL variable and should be set wi
 SELECT @@session.slow_query_log;
 ERROR HY000: Variable 'slow_query_log' is a GLOBAL variable
 '#----------------------FN_DYNVARS_004_05------------------------#'
-SELECT @@global.slow_query_log = VARIABLE_VALUE 
+SELECT IF(@@global.slow_query_log, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='slow_query_log';
-@@global.slow_query_log = VARIABLE_VALUE
+IF(@@global.slow_query_log, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_004_06----------------------#'
 SET @@global.slow_query_log = 0;

mysql-test/suite/sys_vars/r/sql_auto_is_null_basic.result

@@ -12,11 +12,11 @@ COUNT(@@SESSION.sql_auto_is_null)
 1
 1 Expected
 '#---------------------BS_STVARS_044_03----------------------#'
-SELECT @@SESSION.sql_auto_is_null = VARIABLE_VALUE 
+SELECT IF(@@SESSION.sql_auto_is_null, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_auto_is_null';
-@@SESSION.sql_auto_is_null = VARIABLE_VALUE
-0
+IF(@@SESSION.sql_auto_is_null, "ON", "OFF") = VARIABLE_VALUE
+1
 1 Expected
 SELECT COUNT(@@SESSION.sql_auto_is_null);
 COUNT(@@SESSION.sql_auto_is_null)

mysql-test/suite/sys_vars/r/sql_big_selects_basic.result

@@ -66,10 +66,10 @@ WHERE VARIABLE_NAME='sql_big_selects';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_153_07------------------------#'
-SELECT @@session.sql_big_selects = VARIABLE_VALUE 
+SELECT IF(@@session.sql_big_selects, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_big_selects';
-@@session.sql_big_selects = VARIABLE_VALUE
+IF(@@session.sql_big_selects, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_big_selects;
 @@session.sql_big_selects

mysql-test/suite/sys_vars/r/sql_big_tables_basic.result

@@ -71,10 +71,10 @@ WHERE VARIABLE_NAME='sql_big_tables';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_154_07------------------------#'
-SELECT @@session.sql_big_tables = VARIABLE_VALUE 
+SELECT IF(@@session.sql_big_tables, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_big_tables';
-@@session.sql_big_tables = VARIABLE_VALUE
+IF(@@session.sql_big_tables, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_big_tables;
 @@session.sql_big_tables

mysql-test/suite/sys_vars/r/sql_buffer_result_basic.result

@@ -79,10 +79,10 @@ WHERE VARIABLE_NAME='sql_buffer_result';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_155_07------------------------#'
-SELECT @@session.sql_buffer_result = VARIABLE_VALUE 
+SELECT IF(@@session.sql_buffer_result, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_buffer_result';
-@@session.sql_buffer_result = VARIABLE_VALUE
+IF(@@session.sql_buffer_result, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_buffer_result;
 @@session.sql_buffer_result

mysql-test/suite/sys_vars/r/sql_log_bin_basic.result

@@ -69,10 +69,10 @@ SELECT count(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARI
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_156_07------------------------#'
-SELECT @@session.sql_log_bin = VARIABLE_VALUE 
+SELECT IF(@@session.sql_log_bin, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_log_bin';
-@@session.sql_log_bin = VARIABLE_VALUE
+IF(@@session.sql_log_bin, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_log_bin;
 @@session.sql_log_bin

mysql-test/suite/sys_vars/r/sql_log_off_basic.result

@@ -71,10 +71,10 @@ WHERE VARIABLE_NAME='sql_log_off';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_157_07------------------------#'
-SELECT @@session.sql_log_off = VARIABLE_VALUE 
+SELECT IF(@@session.sql_log_off, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_log_off';
-@@session.sql_log_off = VARIABLE_VALUE
+IF(@@session.sql_log_off, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_log_off;
 @@session.sql_log_off

mysql-test/suite/sys_vars/r/sql_low_priority_updates_basic.result

@@ -102,10 +102,10 @@ SELECT @@session.sql_low_priority_updates AS res_is_1;
 res_is_1
 1
 '#----------------------FN_DYNVARS_159_06------------------------#'
-SELECT @@global.sql_low_priority_updates = VARIABLE_VALUE 
+SELECT IF(@@global.sql_low_priority_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='sql_low_priority_updates';
-@@global.sql_low_priority_updates = VARIABLE_VALUE
+IF(@@global.sql_low_priority_updates, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@global.sql_low_priority_updates;
 @@global.sql_low_priority_updates
@@ -116,11 +116,11 @@ WHERE VARIABLE_NAME='sql_low_priority_updates';
 VARIABLE_VALUE
 OFF
 '#----------------------FN_DYNVARS_159_07------------------------#'
-SELECT @@session.sql_low_priority_updates = VARIABLE_VALUE 
+SELECT IF(@@session.sql_low_priority_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_low_priority_updates';
-@@session.sql_low_priority_updates = VARIABLE_VALUE
-0
+IF(@@session.sql_low_priority_updates, "ON", "OFF") = VARIABLE_VALUE
+1
 SELECT @@session.sql_low_priority_updates;
 @@session.sql_low_priority_updates
 1

mysql-test/suite/sys_vars/r/sql_notes_basic.result

@@ -69,10 +69,10 @@ SELECT count(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARI
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_161_07------------------------#'
-SELECT @@session.sql_notes = VARIABLE_VALUE 
+SELECT IF(@@session.sql_notes, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_notes';
-@@session.sql_notes = VARIABLE_VALUE
+IF(@@session.sql_notes, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_notes;
 @@session.sql_notes

mysql-test/suite/sys_vars/r/sql_quote_show_create_basic.result

@@ -71,10 +71,10 @@ WHERE VARIABLE_NAME='sql_quote_show_create';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_162_07------------------------#'
-SELECT @@session.sql_quote_show_create = VARIABLE_VALUE 
+SELECT IF(@@session.sql_quote_show_create, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_quote_show_create';
-@@session.sql_quote_show_create = VARIABLE_VALUE
+IF(@@session.sql_quote_show_create, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_quote_show_create;
 @@session.sql_quote_show_create

mysql-test/suite/sys_vars/r/sql_safe_updates_basic.result

@@ -71,10 +71,10 @@ WHERE VARIABLE_NAME='sql_safe_updates';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_163_07------------------------#'
-SELECT @@session.sql_safe_updates = VARIABLE_VALUE 
+SELECT IF(@@session.sql_safe_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_safe_updates';
-@@session.sql_safe_updates = VARIABLE_VALUE
+IF(@@session.sql_safe_updates, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_safe_updates;
 @@session.sql_safe_updates

mysql-test/suite/sys_vars/r/sql_warnings_basic.result

@@ -71,10 +71,10 @@ WHERE VARIABLE_NAME='sql_warnings';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_166_07------------------------#'
-SELECT @@session.sql_warnings = VARIABLE_VALUE 
+SELECT IF(@@session.sql_warnings, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_warnings';
-@@session.sql_warnings = VARIABLE_VALUE
+IF(@@session.sql_warnings, "ON", "OFF") = VARIABLE_VALUE
 1
 SELECT @@session.sql_warnings;
 @@session.sql_warnings

mysql-test/suite/sys_vars/r/sync_frm_basic.result

@@ -69,10 +69,10 @@ ERROR HY000: Variable 'sync_frm' is a GLOBAL variable and should be set with SET
 SELECT @@session.sync_frm;
 ERROR HY000: Variable 'sync_frm' is a GLOBAL variable
 '#----------------------FN_DYNVARS_169_06------------------------#'
-SELECT @@global.sync_frm = VARIABLE_VALUE 
+SELECT IF(@@global.sync_frm, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='sync_frm';
-@@global.sync_frm = VARIABLE_VALUE
+IF(@@global.sync_frm, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_169_07----------------------#'
 SET @@global.sync_frm = 1;

mysql-test/suite/sys_vars/r/timed_mutexes_basic.result

@@ -67,11 +67,11 @@ WHERE VARIABLE_NAME='timed_mutexes';
 count(VARIABLE_VALUE)
 1
 '#----------------------FN_DYNVARS_177_07------------------------#'
-SELECT @@global.timed_mutexes = VARIABLE_VALUE
+SELECT IF(@@global.timed_mutexes, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='timed_mutexes';
-@@global.timed_mutexes = VARIABLE_VALUE
-0
+IF(@@global.timed_mutexes, "ON", "OFF") = VARIABLE_VALUE
+1
 SELECT @@global.timed_mutexes;
 @@global.timed_mutexes
 1

mysql-test/suite/sys_vars/r/unique_checks_basic.result

@@ -58,10 +58,10 @@ ERROR 42000: Variable 'unique_checks' can't be set to the value of 'test'
 SET @@session.unique_checks = 123456789031;
 ERROR 42000: Variable 'unique_checks' can't be set to the value of '123456789031'
 '#------------------FN_DYNVARS_005_07-----------------------#'
-SELECT @@session.unique_checks = VARIABLE_VALUE 
+SELECT IF(@@session.unique_checks, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='unique_checks';
-@@session.unique_checks = VARIABLE_VALUE
+IF(@@session.unique_checks, "ON", "OFF") = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_001_08----------------------#'
 SET @@unique_checks = 1;

mysql-test/suite/sys_vars/t/auto_commit_basic.test

@@ -113,7 +113,7 @@ SELECT @@global.autocommit;
 #     Check if the value in SESSION Table matches value in variable     #
 #########################################################################
 
-SELECT @@session.autocommit = VARIABLE_VALUE 
+SELECT IF(@@session.autocommit, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='autocommit';
 --echo Bug # 34839: Values in variable and information_schema do not match for autocommit
@@ -124,7 +124,7 @@ WHERE VARIABLE_NAME='autocommit';
 #########################################################################
 
 SET @@autocommit = 1;
-SELECT @@autocommit = VARIABLE_VALUE
+SELECT IF(@@autocommit, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='autocommit';
 

mysql-test/suite/sys_vars/t/automatic_sp_privileges_basic.test

@@ -113,7 +113,7 @@ SELECT @@session.automatic_sp_privileges;
 # Check if the value in GLOBAL Tables matches values in variable             #
 ##############################################################################
 
-SELECT @@global.automatic_sp_privileges = VARIABLE_VALUE 
+SELECT IF(@@global.automatic_sp_privileges, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='automatic_sp_privileges';
 echo 'Bug# 34839: Values in variable and information_schema donot match';

mysql-test/suite/sys_vars/t/big_tables_basic.test

@@ -107,7 +107,7 @@ SELECT @@global.big_tables;
 # Check if the value in  SESSION Tables matches values in variable           #
 ##############################################################################
 
-SELECT @@big_tables = VARIABLE_VALUE 
+SELECT IF(@@big_tables, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='big_tables';
 --echo Bug # 34839: Values in variable and information_schema do not match for autocommit

mysql-test/suite/sys_vars/t/engine_condition_pushdown_basic.test

@@ -160,7 +160,7 @@ SELECT @@session.engine_condition_pushdown AS res_is_1;
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@global.engine_condition_pushdown = VARIABLE_VALUE 
+SELECT IF(@@global.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='engine_condition_pushdown';
 SELECT @@global.engine_condition_pushdown;
@@ -173,7 +173,7 @@ WHERE VARIABLE_NAME='engine_condition_pushdown';
 #     Check if the value in SESSION Table matches value in variable     #
 #########################################################################
 
-SELECT @@session.engine_condition_pushdown = VARIABLE_VALUE 
+SELECT IF(@@session.engine_condition_pushdown, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES
 WHERE VARIABLE_NAME='engine_condition_pushdown';
 SELECT @@session.engine_condition_pushdown;

mysql-test/suite/sys_vars/t/flush_basic.test

@@ -120,7 +120,7 @@ SELECT @@session.flush;
 # Check if the value in GLOBAL Tables matches values in variable   #
 ####################################################################
 
-SELECT @@global.flush = VARIABLE_VALUE 
+SELECT IF(@@global.flush, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='flush';
 

mysql-test/suite/sys_vars/t/foreign_key_checks_basic.test

@@ -131,7 +131,7 @@ SELECT count(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARI
 #     Check if the value in GLOBAL Table matches value in variable     #
 #########################################################################
 
-SELECT @@session.foreign_key_checks = VARIABLE_VALUE 
+SELECT IF(@@session.foreign_key_checks, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='foreign_key_checks';
 SELECT @@session.foreign_key_checks;

mysql-test/suite/sys_vars/t/general_log_basic.test

@@ -103,7 +103,7 @@ SELECT @@session.general_log;
 # Check if the value in GLOBAL Tables matches values in variable             #
 ##############################################################################
 
-SELECT @@global.general_log = VARIABLE_VALUE 
+SELECT IF(@@global.general_log, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='general_log';
 

mysql-test/suite/sys_vars/t/innodb_checksums_basic.test

@@ -52,7 +52,7 @@ SELECT COUNT(@@GLOBAL.innodb_checksums);
 # Check if the value in GLOBAL Table matches value in variable  #
 #################################################################
 
-SELECT @@GLOBAL.innodb_checksums = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.innodb_checksums, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_checksums';
 --echo 1 Expected

mysql-test/suite/sys_vars/t/innodb_doublewrite_basic.test

@@ -52,7 +52,7 @@ SELECT COUNT(@@GLOBAL.innodb_doublewrite);
 # Check if the value in GLOBAL Table matches value in variable  #
 #################################################################
 
-SELECT @@GLOBAL.innodb_doublewrite = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.innodb_doublewrite, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_doublewrite';
 --echo 1 Expected

mysql-test/suite/sys_vars/t/innodb_locks_unsafe_for_binlog_basic.test

@@ -52,7 +52,7 @@ SELECT COUNT(@@GLOBAL.innodb_locks_unsafe_for_binlog);
 # Check if the value in GLOBAL Table matches value in variable  #
 #################################################################
 
-SELECT @@GLOBAL.innodb_locks_unsafe_for_binlog = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.innodb_locks_unsafe_for_binlog, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_locks_unsafe_for_binlog';
 --echo 1 Expected

mysql-test/suite/sys_vars/t/innodb_rollback_on_timeout_basic.test

@@ -52,7 +52,7 @@ SELECT COUNT(@@GLOBAL.innodb_rollback_on_timeout);
 # Check if the value in GLOBAL Table matches value in variable  #
 #################################################################
 
-SELECT @@GLOBAL.innodb_rollback_on_timeout = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.innodb_rollback_on_timeout, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_rollback_on_timeout';
 --echo 1 Expected

mysql-test/suite/sys_vars/t/innodb_support_xa_basic.test

@@ -169,7 +169,7 @@ SELECT @@session.innodb_support_xa AS res_is_1;
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@global.innodb_support_xa =
+SELECT IF(@@global.innodb_support_xa, "ON", "OFF") =
  VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
   WHERE VARIABLE_NAME='innodb_support_xa';
 SELECT @@global.innodb_support_xa;
@@ -182,7 +182,7 @@ SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 #     Check if the value in SESSION Table matches value in variable     #
 #########################################################################
 
-SELECT @@session.innodb_support_xa =
+SELECT IF(@@session.innodb_support_xa, "ON", "OFF") =
  VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES
   WHERE VARIABLE_NAME='innodb_support_xa';
 SELECT @@session.innodb_support_xa;

mysql-test/suite/sys_vars/t/innodb_table_locks_basic.test

@@ -167,7 +167,7 @@ SELECT @@session.innodb_table_locks AS res_is_1;
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@global.innodb_table_locks =
+SELECT IF(@@global.innodb_table_locks, "ON", "OFF") =
  VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
   WHERE VARIABLE_NAME='innodb_table_locks';
 SELECT @@global.innodb_table_locks;
@@ -179,7 +179,7 @@ SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 #     Check if the value in SESSION Table matches value in variable     #
 #########################################################################
 
-SELECT @@session.innodb_table_locks =
+SELECT IF(@@session.innodb_table_locks, "ON", "OFF") =
  VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES
   WHERE VARIABLE_NAME='innodb_table_locks';
 SELECT @@session.innodb_table_locks;

mysql-test/suite/sys_vars/t/keep_files_on_create_basic.test

@@ -156,7 +156,7 @@ SELECT @@session.keep_files_on_create;
 ####################################################################
 
 
-SELECT @@global.keep_files_on_create = VARIABLE_VALUE 
+SELECT IF(@@global.keep_files_on_create, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='keep_files_on_create';
 
@@ -165,7 +165,7 @@ WHERE VARIABLE_NAME='keep_files_on_create';
 #  Check if the value in SESSION Table matches value in variable   #
 ####################################################################
 
-SELECT @@session.keep_files_on_create = VARIABLE_VALUE 
+SELECT IF(@@session.keep_files_on_create, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='keep_files_on_create';
 

mysql-test/suite/sys_vars/t/local_infile_basic.test

@@ -112,7 +112,7 @@ SELECT @@session.local_infile = 1;
 # Check if the value in GLOBAL Tables matches values in variable   #
 ####################################################################
 
-SELECT @@global.local_infile = VARIABLE_VALUE 
+SELECT IF(@@global.local_infile, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='local_infile';
 

mysql-test/suite/sys_vars/t/log_bin_trust_function_creators_basic.test

@@ -122,12 +122,12 @@ SET @@global.log_bin_trust_function_creators = test;
 ###############################################################################
 
 
-SELECT @@global.log_bin_trust_function_creators = VARIABLE_VALUE 
+SELECT IF(@@global.log_bin_trust_function_creators, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='log_bin_trust_function_creators';
 
 --Error ER_INCORRECT_GLOBAL_LOCAL_VAR
-SELECT @@session.log_bin_trust_function_creators = VARIABLE_VALUE 
+SELECT IF(@@session.log_bin_trust_function_creators, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='log_bin_trust_function_creators';
 

mysql-test/suite/sys_vars/t/log_queries_not_using_indexes_basic.test

@@ -129,4 +129,5 @@ SET @@SESSION log_queries_not_using_indexes= TRUE;
 
 
 SET @@global.log_queries_not_using_indexes= @start_value;
+SELECT IF(@@GLOBAL.log_queries_not_using_indexes, "ON", "OFF") = VARIABLE_VALUE
 

mysql-test/suite/sys_vars/t/low_priority_updates_basic.test

@@ -156,7 +156,7 @@ SET @@session.low_priority_updates = test;
 ####################################################################
 
 
-SELECT @@global.low_priority_updates = VARIABLE_VALUE 
+SELECT IF(@@global.low_priority_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='low_priority_updates';
 
@@ -165,7 +165,7 @@ WHERE VARIABLE_NAME='low_priority_updates';
 #  Check if the value in SESSION Table matches value in variable   #
 ####################################################################
 
-SELECT @@session.low_priority_updates = VARIABLE_VALUE 
+SELECT IF(@@session.low_priority_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='low_priority_updates';
 

mysql-test/suite/sys_vars/t/myisam_use_mmap_basic.test

@@ -54,7 +54,7 @@ SELECT COUNT(@@GLOBAL.myisam_use_mmap);
 # Check if the value in GLOBAL Table matches value in variable  #
 #################################################################
 
-SELECT @@GLOBAL.myisam_use_mmap = VARIABLE_VALUE
+SELECT IF(@@GLOBAL.myisam_use_mmap, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='myisam_use_mmap';
 --echo 1 Expected

mysql-test/suite/sys_vars/t/new_basic.test

@@ -154,7 +154,7 @@ SET @@session.new = test;
 ####################################################################
 
 
-SELECT @@global.new = VARIABLE_VALUE 
+SELECT IF(@@global.new, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='new';
 
@@ -163,7 +163,7 @@ WHERE VARIABLE_NAME='new';
 #  Check if the value in SESSION Table matches value in variable   #
 ####################################################################
 
-SELECT @@session.new = VARIABLE_VALUE 
+SELECT IF(@@session.new, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='new';
 

mysql-test/suite/sys_vars/t/old_passwords_basic.test

@@ -154,7 +154,7 @@ SET @@session.old_passwords = test;
 ####################################################################
 
 
-SELECT @@global.old_passwords = VARIABLE_VALUE 
+SELECT IF(@@global.old_passwords, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='old_passwords';
 
@@ -163,7 +163,7 @@ WHERE VARIABLE_NAME='old_passwords';
 #  Check if the value in SESSION Table matches value in variable   #
 ####################################################################
 
-SELECT @@session.old_passwords = VARIABLE_VALUE 
+SELECT IF(@@session.old_passwords, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='old_passwords';
 

mysql-test/suite/sys_vars/t/query_cache_wlock_invalidate_basic.test

@@ -165,7 +165,7 @@ SELECT @@session.query_cache_wlock_invalidate AS res_is_1;
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@global.query_cache_wlock_invalidate = VARIABLE_VALUE 
+SELECT IF(@@global.query_cache_wlock_invalidate, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='query_cache_wlock_invalidate';
 SELECT @@global.query_cache_wlock_invalidate;
@@ -178,7 +178,7 @@ WHERE VARIABLE_NAME='query_cache_wlock_invalidate';
 #     Check if the value in SESSION Table matches value in variable     #
 #########################################################################
 
-SELECT @@session.query_cache_wlock_invalidate = VARIABLE_VALUE 
+SELECT IF(@@session.query_cache_wlock_invalidate, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='query_cache_wlock_invalidate';
 SELECT @@session.query_cache_wlock_invalidate;

mysql-test/suite/sys_vars/t/read_only_basic.test

@@ -121,11 +121,11 @@ SELECT @@read_only;
 # Check if the value in GLOBAL & SESSION Tables matches values in variable   #
 ##############################################################################
 
-SELECT @@global.read_only = VARIABLE_VALUE 
+SELECT IF(@@global.read_only, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='read_only';
 
-SELECT @@read_only = VARIABLE_VALUE 
+SELECT IF(@@read_only, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='read_only';
 

mysql-test/suite/sys_vars/t/relay_log_purge_basic.test

@@ -123,7 +123,7 @@ SELECT @@session.relay_log_purge;
 # Check if the value in GLOBAL  Tables matches values in variable   #
 #####################################################################
 
-SELECT @@global.relay_log_purge = VARIABLE_VALUE 
+SELECT IF(@@global.relay_log_purge, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='relay_log_purge';
 

mysql-test/suite/sys_vars/t/secure_auth_basic.test

@@ -130,7 +130,7 @@ WHERE VARIABLE_NAME='secure_auth';
 #     Check if the value in GLOBAL Table matches value in variable     #
 ########################################################################
 
-SELECT @@global.secure_auth = VARIABLE_VALUE 
+SELECT IF(@@global.secure_auth, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='secure_auth';
 SELECT @@global.secure_auth;

mysql-test/suite/sys_vars/t/slave_allow_batching_basic.test

@@ -130,7 +130,7 @@ SET @global_start_value = @@global.slave_allow_batching;
 #     Check if the value in GLOBAL Table matches value in variable     #
 #########################################################################
 
-#SELECT @@global.slave_allow_batching = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='slave_allow_batching';
+#SELECT IF(@@global.slave_allow_batching, "ON", "OFF") = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='slave_allow_batching';
 #SELECT @@global.slave_allow_batching;
 #SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='slave_allow_batching';
 #--echo 'Bug: value in information schema does not match'

mysql-test/suite/sys_vars/t/slave_compressed_protocol_basic.test

@@ -127,7 +127,7 @@ WHERE VARIABLE_NAME='slave_compressed_protocol';
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@global.slave_compressed_protocol = VARIABLE_VALUE 
+SELECT IF(@@global.slave_compressed_protocol, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='slave_compressed_protocol';
 SELECT @@global.slave_compressed_protocol;

mysql-test/suite/sys_vars/t/slow_query_log_basic.test

@@ -104,7 +104,7 @@ SELECT @@session.slow_query_log;
 # Check if the value in GLOBAL Tables matches values in variable             #
 ##############################################################################
 
-SELECT @@global.slow_query_log = VARIABLE_VALUE 
+SELECT IF(@@global.slow_query_log, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='slow_query_log';
 

mysql-test/suite/sys_vars/t/sql_auto_is_null_basic.test

@@ -55,7 +55,7 @@ SELECT COUNT(@@SESSION.sql_auto_is_null);
 # Check if the value in SESSION Table matches value in variable #
 #################################################################
 
-SELECT @@SESSION.sql_auto_is_null = VARIABLE_VALUE 
+SELECT IF(@@SESSION.sql_auto_is_null, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_auto_is_null';
 --echo 1 Expected

mysql-test/suite/sys_vars/t/sql_big_selects_basic.test

@@ -132,7 +132,7 @@ WHERE VARIABLE_NAME='sql_big_selects';
 #     Check if the value in GLOBAL Table matches value in variable     #
 ########################################################################
 
-SELECT @@session.sql_big_selects = VARIABLE_VALUE 
+SELECT IF(@@session.sql_big_selects, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_big_selects';
 SELECT @@session.sql_big_selects;

mysql-test/suite/sys_vars/t/sql_big_tables_basic.test

@@ -135,7 +135,7 @@ WHERE VARIABLE_NAME='sql_big_tables';
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@session.sql_big_tables = VARIABLE_VALUE 
+SELECT IF(@@session.sql_big_tables, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_big_tables';
 SELECT @@session.sql_big_tables;

mysql-test/suite/sys_vars/t/sql_buffer_result_basic.test

@@ -144,7 +144,7 @@ WHERE VARIABLE_NAME='sql_buffer_result';
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@session.sql_buffer_result = VARIABLE_VALUE 
+SELECT IF(@@session.sql_buffer_result, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_buffer_result';
 SELECT @@session.sql_buffer_result;

mysql-test/suite/sys_vars/t/sql_log_bin_basic.test

@@ -134,7 +134,7 @@ SELECT count(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARI
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@session.sql_log_bin = VARIABLE_VALUE 
+SELECT IF(@@session.sql_log_bin, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_log_bin';
 SELECT @@session.sql_log_bin;

mysql-test/suite/sys_vars/t/sql_log_off_basic.test

@@ -135,7 +135,7 @@ WHERE VARIABLE_NAME='sql_log_off';
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@session.sql_log_off = VARIABLE_VALUE 
+SELECT IF(@@session.sql_log_off, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_log_off';
 SELECT @@session.sql_log_off;

mysql-test/suite/sys_vars/t/sql_low_priority_updates_basic.test

@@ -166,7 +166,7 @@ SELECT @@session.sql_low_priority_updates AS res_is_1;
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@global.sql_low_priority_updates = VARIABLE_VALUE 
+SELECT IF(@@global.sql_low_priority_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='sql_low_priority_updates';
 SELECT @@global.sql_low_priority_updates;
@@ -179,7 +179,7 @@ WHERE VARIABLE_NAME='sql_low_priority_updates';
 #     Check if the value in SESSION Table matches value in variable     #
 #########################################################################
 
-SELECT @@session.sql_low_priority_updates = VARIABLE_VALUE 
+SELECT IF(@@session.sql_low_priority_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_low_priority_updates';
 SELECT @@session.sql_low_priority_updates;

mysql-test/suite/sys_vars/t/sql_notes_basic.test

@@ -135,7 +135,7 @@ SELECT count(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARI
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@session.sql_notes = VARIABLE_VALUE 
+SELECT IF(@@session.sql_notes, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_notes';
 SELECT @@session.sql_notes;

mysql-test/suite/sys_vars/t/sql_quote_show_create_basic.test

@@ -136,7 +136,7 @@ WHERE VARIABLE_NAME='sql_quote_show_create';
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@session.sql_quote_show_create = VARIABLE_VALUE 
+SELECT IF(@@session.sql_quote_show_create, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_quote_show_create';
 SELECT @@session.sql_quote_show_create;

mysql-test/suite/sys_vars/t/sql_safe_updates_basic.test

@@ -135,7 +135,7 @@ WHERE VARIABLE_NAME='sql_safe_updates';
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@session.sql_safe_updates = VARIABLE_VALUE 
+SELECT IF(@@session.sql_safe_updates, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_safe_updates';
 SELECT @@session.sql_safe_updates;

mysql-test/suite/sys_vars/t/sql_warnings_basic.test

@@ -140,7 +140,7 @@ WHERE VARIABLE_NAME='sql_warnings';
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@session.sql_warnings = VARIABLE_VALUE 
+SELECT IF(@@session.sql_warnings, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='sql_warnings';
 SELECT @@session.sql_warnings;

mysql-test/suite/sys_vars/t/sync_frm_basic.test

@@ -121,7 +121,7 @@ SELECT @@session.sync_frm;
 # Check if the value in GLOBAL Tables matches values in variable   #
 ####################################################################
 
-SELECT @@global.sync_frm = VARIABLE_VALUE 
+SELECT IF(@@global.sync_frm, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='sync_frm';
 

mysql-test/suite/sys_vars/t/timed_mutexes_basic.test

@@ -128,7 +128,7 @@ WHERE VARIABLE_NAME='timed_mutexes';
 #     Check if the value in GLOBAL Table matches value in variable      #
 #########################################################################
 
-SELECT @@global.timed_mutexes = VARIABLE_VALUE
+SELECT IF(@@global.timed_mutexes, "ON", "OFF") = VARIABLE_VALUE
 FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
 WHERE VARIABLE_NAME='timed_mutexes';
 SELECT @@global.timed_mutexes;

mysql-test/suite/sys_vars/t/unique_checks_basic.test

@@ -121,7 +121,7 @@ SET @@session.unique_checks = 123456789031;
 #  Check if the value in SESSION Table matches value in variable   #
 ####################################################################
 
-SELECT @@session.unique_checks = VARIABLE_VALUE 
+SELECT IF(@@session.unique_checks, "ON", "OFF") = VARIABLE_VALUE 
 FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
 WHERE VARIABLE_NAME='unique_checks';
 

mysql-test/t/sp-vars.test

@@ -1448,3 +1448,42 @@ drop function f1;
 drop table t1;
 # End of 5.1 tests.
 
+
+###########################################################################
+#
+# Test case for BUG#28299: To-number conversion warnings work
+# differenly with CHAR and VARCHAR sp variables
+#
+###########################################################################
+
+--echo
+--echo ---------------------------------------------------------------
+--echo BUG#28299
+--echo ---------------------------------------------------------------
+--echo
+
+DELIMITER |;
+CREATE PROCEDURE ctest()
+BEGIN
+  DECLARE i CHAR(16);
+  DECLARE j INT;
+  SET i= 'string';
+  SET j= 1 + i;
+END|
+DELIMITER ;|
+
+CALL ctest();
+DROP PROCEDURE ctest;
+
+DELIMITER |;
+CREATE PROCEDURE vctest()
+BEGIN
+  DECLARE i VARCHAR(16);
+  DECLARE j INT;
+  SET i= 'string';
+  SET j= 1 + i;
+END|
+DELIMITER ;|
+
+CALL vctest();
+DROP PROCEDURE vctest;

mysql-test/t/type_varchar.test

@@ -199,3 +199,21 @@ SELECT a,(a + 0) FROM t1 ORDER BY a;
 SELECT a,(a DIV 2) FROM t1 ORDER BY a;
 SELECT a,CAST(a AS SIGNED) FROM t1 ORDER BY a;
 DROP TABLE t1;
+
+#
+# Bug #28299: To-number conversion warnings work differenly with CHAR
+# and VARCHAR sp variables
+#
+# * Verify that 'Truncated incorrect DOUBLE value' is shown for 's' 
+#   when using both CHAR and VARCHAR.
+#
+
+CREATE TABLE t1 (a VARCHAR(16));
+INSERT INTO t1 VALUES ('5'), ('s'), ('');
+SELECT 5 = a FROM t1;
+DROP TABLE t1;
+
+CREATE TABLE t1 (a CHAR(16));
+INSERT INTO t1 VALUES ('5'), ('s'), ('');
+SELECT 5 = a FROM t1;
+DROP TABLE t1;

sql/field.cc

@@ -1016,6 +1016,36 @@ Item_result Field::result_merge_type(enum_field_types field_type)
   Static help functions
 *****************************************************************************/
 
+/**
+  Output a warning for erroneous conversion of strings to numerical 
+  values. For use with ER_TRUNCATED_WRONG_VALUE[_FOR_FIELD] 
+  
+  @param thd         THD object
+  @param str         pointer to string that failed to be converted
+  @param length      length of string
+  @param cs          charset for string
+  @param typestr     string describing type converted to
+  @param error       error value to output
+  @param field_name  (for *_FOR_FIELD) name of field
+  @param row_num     (for *_FOR_FIELD) row number
+ */
+static void push_numerical_conversion_warning(THD* thd, const char* str, 
+                                              uint length, CHARSET_INFO* cs,
+                                              const char* typestr, int error,
+                                              const char* field_name="UNKNOWN",
+                                              ulong row_num=0)
+{
+    char buf[max(max(DOUBLE_TO_STRING_CONVERSION_BUFFER_SIZE,
+      LONGLONG_TO_STRING_CONVERSION_BUFFER_SIZE), 
+      DECIMAL_TO_STRING_CONVERSION_BUFFER_SIZE)];
+
+    String tmp(buf, sizeof(buf), cs);
+    tmp.copy(str, length, cs);
+    push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+                        error, ER(error), typestr, tmp.c_ptr(),
+                        field_name, row_num);
+}
+
 
 /**
   Check whether a field type can be partially indexed by a key.
@@ -1109,14 +1139,11 @@ int Field_num::check_int(CHARSET_INFO *cs, const char *str, int length,
   /* Test if we get an empty string or wrong integer */
   if (str == int_end || error == MY_ERRNO_EDOM)
   {
-    char buff[128];
-    String tmp(buff, (uint32) sizeof(buff), system_charset_info);
-    tmp.copy(str, length, system_charset_info);
-    push_warning_printf(table->in_use, MYSQL_ERROR::WARN_LEVEL_WARN,
+    push_numerical_conversion_warning(table->in_use, str, length,
+                                      cs, "integer",
                                       ER_TRUNCATED_WRONG_VALUE_FOR_FIELD,
-                        ER(ER_TRUNCATED_WRONG_VALUE_FOR_FIELD),
-                        "integer", tmp.c_ptr(), field_name,
-                        (ulong) table->in_use->warning_info->current_row_for_warning());
+                                      field_name, 
+                                      table->in_use->warning_info->current_row_for_warning());
     return 1;
   }
   /* Test if we have garbage at the end of the given string. */
@@ -2674,16 +2701,11 @@ int Field_new_decimal::store(const char *from, uint length,
                            &decimal_value)) &&
       table->in_use->abort_on_warning)
   {
-    /* Because "from" is not NUL-terminated and we use %s in the ER() */
-    String from_as_str;
-    from_as_str.copy(from, length, &my_charset_bin);
-
-    push_warning_printf(table->in_use, MYSQL_ERROR::WARN_LEVEL_WARN,
+    push_numerical_conversion_warning(table->in_use, from, length,
+                                      &my_charset_bin, "decimal", 
                                       ER_TRUNCATED_WRONG_VALUE_FOR_FIELD,
-                        ER(ER_TRUNCATED_WRONG_VALUE_FOR_FIELD),
-                        "decimal", from_as_str.c_ptr(), field_name,
-                        (ulong) table->in_use->warning_info->current_row_for_warning());
-
+                                      field_name, 
+                                      table->in_use->warning_info->current_row_for_warning());
     DBUG_RETURN(err);
   }
 
@@ -2697,17 +2719,12 @@ int Field_new_decimal::store(const char *from, uint length,
     break;
   case E_DEC_BAD_NUM:
     {
-      /* Because "from" is not NUL-terminated and we use %s in the ER() */
-      String from_as_str;
-      from_as_str.copy(from, length, &my_charset_bin);
-
-    push_warning_printf(table->in_use, MYSQL_ERROR::WARN_LEVEL_WARN,
+      push_numerical_conversion_warning(table->in_use, from, length,
+                                        &my_charset_bin, "decimal", 
                                         ER_TRUNCATED_WRONG_VALUE_FOR_FIELD,
-                        ER(ER_TRUNCATED_WRONG_VALUE_FOR_FIELD),
-                          "decimal", from_as_str.c_ptr(), field_name,
-                        (ulong) table->in_use->warning_info->current_row_for_warning());
+                                        field_name, 
+                                        table->in_use->warning_info->current_row_for_warning());
       my_decimal_set_zero(&decimal_value);
-
       break;
     }
   }
@@ -6610,13 +6627,8 @@ double Field_string::val_real(void)
                  !check_if_only_end_space(cs, end,
                                           (char*) ptr + field_length))))
   {
-    char buf[DOUBLE_TO_STRING_CONVERSION_BUFFER_SIZE];
-    String tmp(buf, sizeof(buf), cs);
-    tmp.copy((char*) ptr, field_length, cs);
-    push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-                        ER_TRUNCATED_WRONG_VALUE, 
-                        ER(ER_TRUNCATED_WRONG_VALUE),
-                        "DOUBLE", tmp.c_ptr());
+     push_numerical_conversion_warning(current_thd, (char*)ptr, field_length, 
+                                      cs, "DOUBLE", ER_TRUNCATED_WRONG_VALUE);
   }
   return result;
 }
@@ -6636,13 +6648,8 @@ longlong Field_string::val_int(void)
                  !check_if_only_end_space(cs, end,
                                           (char*) ptr + field_length))))
   {
-    char buf[LONGLONG_TO_STRING_CONVERSION_BUFFER_SIZE];
-    String tmp(buf, sizeof(buf), cs);
-    tmp.copy((char*) ptr, field_length, cs);
-    push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-                        ER_TRUNCATED_WRONG_VALUE, 
-                        ER(ER_TRUNCATED_WRONG_VALUE),
-                        "INTEGER", tmp.c_ptr());
+    push_numerical_conversion_warning(current_thd, (char*)ptr, field_length, 
+                                      cs, "INTEGER", ER_TRUNCATED_WRONG_VALUE);
   }
   return result;
 }
@@ -6674,14 +6681,8 @@ my_decimal *Field_string::val_decimal(my_decimal *decimal_value)
                           charset(), decimal_value);
   if (!table->in_use->no_errors && err)
   {
-    char buf[DECIMAL_TO_STRING_CONVERSION_BUFFER_SIZE];
-    CHARSET_INFO *cs= charset();
-    String tmp(buf, sizeof(buf), cs);
-    tmp.copy((char*) ptr, field_length, cs);
-    push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-                        ER_TRUNCATED_WRONG_VALUE, 
-                        ER(ER_TRUNCATED_WRONG_VALUE),
-                        "DECIMAL", tmp.c_ptr());
+    push_numerical_conversion_warning(current_thd, (char*)ptr, field_length, 
+                                      charset(), "DECIMAL", ER_TRUNCATED_WRONG_VALUE);
   }
 
   return decimal_value;
@@ -7113,22 +7114,46 @@ int Field_varstring::store(longlong nr, bool unsigned_val)
 double Field_varstring::val_real(void)
 {
   ASSERT_COLUMN_MARKED_FOR_READ;
-  int not_used;
-  char *end_not_used;
+  int error;
+  char *end;
+  double result;
+  CHARSET_INFO* cs= charset();
+  
   uint length= length_bytes == 1 ? (uint) *ptr : uint2korr(ptr);
-  return my_strntod(field_charset, (char*) ptr+length_bytes, length,
-                    &end_not_used, &not_used);
+  result= my_strntod(cs, (char*)ptr+length_bytes, length, &end, &error);
+  
+  if (!table->in_use->no_errors && 
+       (error || (length != (uint)(end - (char*)ptr+length_bytes) && 
+         !check_if_only_end_space(cs, end, (char*)ptr+length_bytes+length)))) 
+  {
+    push_numerical_conversion_warning(current_thd, (char*)ptr+length_bytes, 
+                                      length, cs,"DOUBLE", 
+                                      ER_TRUNCATED_WRONG_VALUE);
+  }
+  return result;
 }
 
 
 longlong Field_varstring::val_int(void)
 {
   ASSERT_COLUMN_MARKED_FOR_READ;
-  int not_used;
-  char *end_not_used;
+  int error;
+  char *end;
+  CHARSET_INFO *cs= charset();
+  
   uint length= length_bytes == 1 ? (uint) *ptr : uint2korr(ptr);
-  return my_strntoll(field_charset, (char*) ptr+length_bytes, length, 10,
-                     &end_not_used, &not_used);
+  longlong result= my_strntoll(cs, (char*) ptr+length_bytes, length, 10,
+                     &end, &error);
+		     
+  if (!table->in_use->no_errors && 
+       (error || (length != (uint)(end - (char*)ptr+length_bytes) && 
+         !check_if_only_end_space(cs, end, (char*)ptr+length_bytes+length)))) 
+  {
+    push_numerical_conversion_warning(current_thd, (char*)ptr+length_bytes, 
+                                      length, cs, "INTEGER", 
+                                      ER_TRUNCATED_WRONG_VALUE);  
+  }
+  return result;
 }
 
 String *Field_varstring::val_str(String *val_buffer __attribute__((unused)),
@@ -7144,9 +7169,17 @@ String *Field_varstring::val_str(String *val_buffer __attribute__((unused)),
 my_decimal *Field_varstring::val_decimal(my_decimal *decimal_value)
 {
   ASSERT_COLUMN_MARKED_FOR_READ;
+  CHARSET_INFO *cs= charset();
   uint length= length_bytes == 1 ? (uint) *ptr : uint2korr(ptr);
-  str2my_decimal(E_DEC_FATAL_ERROR, (char*) ptr+length_bytes, length,
-                 charset(), decimal_value);
+  int error= str2my_decimal(E_DEC_FATAL_ERROR, (char*) ptr+length_bytes, length,
+                 cs, decimal_value);
+
+  if (!table->in_use->no_errors && error)
+  {
+    push_numerical_conversion_warning(current_thd, (char*)ptr+length_bytes, 
+                                      length, cs, "DECIMAL", 
+                                      ER_TRUNCATED_WRONG_VALUE); 
+  }
   return decimal_value;
 }