SET @global_start_value = @@global.innodb_commit_concurrency; SELECT @global_start_value; @global_start_value 0 '#--------------------FN_DYNVARS_046_01------------------------#' SET @@global.innodb_commit_concurrency = 0; SET @@global.innodb_commit_concurrency = DEFAULT; SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 '#---------------------FN_DYNVARS_046_02-------------------------#' SET innodb_commit_concurrency = 1; ERROR HY000: Variable 'innodb_commit_concurrency' is a GLOBAL variable and should be set with SET GLOBAL SELECT @@innodb_commit_concurrency; @@innodb_commit_concurrency 0 SELECT local.innodb_commit_concurrency; ERROR 42S02: Unknown table 'local' in field list SET global innodb_commit_concurrency = 0; SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 '#--------------------FN_DYNVARS_046_03------------------------#' SET @@global.innodb_commit_concurrency = 0; SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 '#--------------------FN_DYNVARS_046_04-------------------------#' SET @@global.innodb_commit_concurrency = 1; ERROR 42000: Variable 'innodb_commit_concurrency' can't be set to the value of '1' SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 SET @@global.innodb_commit_concurrency = -1; ERROR 42000: Variable 'innodb_commit_concurrency' can't be set to the value of '-1' SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 SET @@global.innodb_commit_concurrency = "T"; ERROR 42000: Incorrect argument type to variable 'innodb_commit_concurrency' SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 SET @@global.innodb_commit_concurrency = "Y"; ERROR 42000: Incorrect argument type to variable 'innodb_commit_concurrency' SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 SET @@global.innodb_commit_concurrency = 1.1; ERROR 42000: Incorrect argument type to variable 'innodb_commit_concurrency' SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 SET @@global.innodb_commit_concurrency = 1001; ERROR 42000: Variable 'innodb_commit_concurrency' can't be set to the value of '1001' SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 '#----------------------FN_DYNVARS_046_05------------------------#' SELECT @@global.innodb_commit_concurrency = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='innodb_commit_concurrency'; @@global.innodb_commit_concurrency = VARIABLE_VALUE 1 SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='innodb_commit_concurrency'; VARIABLE_VALUE 0 '#---------------------FN_DYNVARS_046_06-------------------------#' SET @@global.innodb_commit_concurrency = OFF; ERROR 42000: Incorrect argument type to variable 'innodb_commit_concurrency' SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 SET @@global.innodb_commit_concurrency = ON; ERROR 42000: Incorrect argument type to variable 'innodb_commit_concurrency' SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0 SET @@global.innodb_commit_concurrency = @global_start_value; SELECT @@global.innodb_commit_concurrency; @@global.innodb_commit_concurrency 0