SET @start_value = @@global.concurrent_insert;
SELECT @start_value;
@start_value
1
'#--------------------FN_DYNVARS_018_01------------------------#'
SET @@global.concurrent_insert = 0;
SET @@global.concurrent_insert = DEFAULT;
SELECT @@global.concurrent_insert;
@@global.concurrent_insert
1
'#---------------------FN_DYNVARS_018_02-------------------------#'
SET @@global.concurrent_insert = DEFAULT;
SELECT @@global.concurrent_insert = 1;
@@global.concurrent_insert = 1
1
'#--------------------FN_DYNVARS_018_03------------------------#'
SET @@global.concurrent_insert = 0;
SELECT @@global.concurrent_insert;
@@global.concurrent_insert
0
SET @@global.concurrent_insert = 1;
SELECT @@global.concurrent_insert;
@@global.concurrent_insert
1
SET @@global.concurrent_insert = 2;
SELECT @@global.concurrent_insert;
@@global.concurrent_insert
2
'#--------------------FN_DYNVARS_018_04-------------------------#'
SET @@global.concurrent_insert = -1;
Select @@global.concurrent_insert;
@@global.concurrent_insert
0
SET @@global.concurrent_insert = 100;
Warnings:
Warning	1292	Truncated incorrect concurrent-insert value: '100'
Select @@global.concurrent_insert;
@@global.concurrent_insert
2
'Bug # 34837: Errors are not coming on assigning invalid values to variable'
SET @@global.concurrent_insert = TRUEF;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = TRUE_F;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = FALSE0;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = OON;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = ONN;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = OOFF;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = 0FF;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = ' ';
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = " ";
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = '';
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
'#-------------------FN_DYNVARS_018_05----------------------------#'
SET @@session.concurrent_insert = 1;
ERROR HY000: Variable 'concurrent_insert' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@session.concurrent_insert = 1;
ERROR HY000: Variable 'concurrent_insert' is a GLOBAL variable
'#----------------------FN_DYNVARS_018_06------------------------#'
SELECT @@global.concurrent_insert = VARIABLE_VALUE 
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
WHERE VARIABLE_NAME='concurrent_insert';
@@global.concurrent_insert = VARIABLE_VALUE
1
'#---------------------FN_DYNVARS_018_07----------------------#'
SET @@global.concurrent_insert = OFF;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
SET @@global.concurrent_insert = ON;
ERROR 42000: Incorrect argument type to variable 'concurrent_insert'
'#---------------------FN_DYNVARS_018_08----------------------#'
SET @@global.concurrent_insert = TRUE;
SELECT @@global.concurrent_insert;
@@global.concurrent_insert
1
SET @@global.concurrent_insert = FALSE;
SELECT @@global.concurrent_insert;
@@global.concurrent_insert
0
'#---------------------FN_DYNVARS_018_09----------------------#'
SET @@global.concurrent_insert = 1;
SELECT @@concurrent_insert = @@global.concurrent_insert;
@@concurrent_insert = @@global.concurrent_insert
1
'#---------------------FN_DYNVARS_018_10----------------------#'
SET concurrent_insert = 1;
ERROR HY000: Variable 'concurrent_insert' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@concurrent_insert;
@@concurrent_insert
1
SET global.concurrent_insert = 1;
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 'concurrent_insert = 1' at line 1
SELECT global.concurrent_insert;
ERROR 42S02: Unknown table 'global' in field list
SELECT concurrent_insert = @@session.concurrent_insert;
ERROR 42S22: Unknown column 'concurrent_insert' in 'field list'
SET @@global.concurrent_insert = @start_value;
SELECT @@global.concurrent_insert;
@@global.concurrent_insert
1