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SET @global_start_value = @@global.slave_compressed_protocol; SELECT @global_start_value; @global_start_value 0 '#--------------------FN_DYNVARS_147_01------------------------#' SET @@global.slave_compressed_protocol = 1; SET @@global.slave_compressed_protocol = DEFAULT; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 0 '#---------------------FN_DYNVARS_147_02-------------------------#' SET slave_compressed_protocol = 1; ERROR HY000: Variable 'slave_compressed_protocol' is a GLOBAL variable and should be set with SET GLOBAL SELECT @@slave_compressed_protocol; @@slave_compressed_protocol 0 SELECT global.slave_compressed_protocol; ERROR 42S02: Unknown table 'global' in field list SET global slave_compressed_protocol = 1; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 1 '#--------------------FN_DYNVARS_147_03------------------------#' SET @@global.slave_compressed_protocol = 0; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 0 SET @@global.slave_compressed_protocol = 1; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 1 '#--------------------FN_DYNVARS_147_04-------------------------#' SET @@global.slave_compressed_protocol = -1; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of '-1' SET @@global.slave_compressed_protocol = 2; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of '2' SET @@global.slave_compressed_protocol = "1.00"; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of '1.00' SET @@global.slave_compressed_protocol = "Y"; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of 'Y' SET @@global.slave_compressed_protocol = YES; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of 'YES' SET @@global.slave_compressed_protocol = ONN; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of 'ONN' SET @@global.slave_compressed_protocol = 0FF; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of '0FF' SET @@global.slave_compressed_protocol = ' 1'; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of ' 1' SET @@global.slave_compressed_protocol = NO; ERROR 42000: Variable 'slave_compressed_protocol' can't be set to the value of 'NO' '#-------------------FN_DYNVARS_147_05----------------------------#' SET @@session.slave_compressed_protocol = 0; ERROR HY000: Variable 'slave_compressed_protocol' is a GLOBAL variable and should be set with SET GLOBAL SET @@slave_compressed_protocol = 0; ERROR HY000: Variable 'slave_compressed_protocol' is a GLOBAL variable and should be set with SET GLOBAL SET @@local.slave_compressed_protocol = 0; ERROR HY000: Variable 'slave_compressed_protocol' is a GLOBAL variable and should be set with SET GLOBAL SELECT @@session.slave_compressed_protocol; ERROR HY000: Variable 'slave_compressed_protocol' is a GLOBAL variable SELECT @@local.slave_compressed_protocol; ERROR HY000: Variable 'slave_compressed_protocol' is a GLOBAL variable '#----------------------FN_DYNVARS_147_06------------------------#' SELECT count(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME='slave_compressed_protocol'; count(VARIABLE_VALUE) 1 '#----------------------FN_DYNVARS_147_07------------------------#' SELECT IF(@@global.slave_compressed_protocol, "ON", "OFF") = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='slave_compressed_protocol'; IF(@@global.slave_compressed_protocol, "ON", "OFF") = VARIABLE_VALUE 1 SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 1 SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='slave_compressed_protocol'; VARIABLE_VALUE ON '#---------------------FN_DYNVARS_147_08-------------------------#' SET @@global.slave_compressed_protocol = OFF; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 0 SET @@global.slave_compressed_protocol = ON; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 1 '#---------------------FN_DYNVARS_147_09----------------------#' SET @@global.slave_compressed_protocol = TRUE; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 1 SET @@global.slave_compressed_protocol = FALSE; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 0 SET @@global.slave_compressed_protocol = @global_start_value; SELECT @@global.slave_compressed_protocol; @@global.slave_compressed_protocol 0