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View File Name :
optimizer_trace_max_mem_size_basic.result
SELECT @@global.optimizer_trace_max_mem_size; @@global.optimizer_trace_max_mem_size 16384 SET @@global.optimizer_trace_max_mem_size=5; show global variables like 'optimizer_trace_max_mem_size'; Variable_name Value optimizer_trace_max_mem_size 5 select * from information_schema.global_variables where variable_name='optimizer_trace_max_mem_size'; VARIABLE_NAME VARIABLE_VALUE OPTIMIZER_TRACE_MAX_MEM_SIZE 5 select @@session.optimizer_trace_max_mem_size; @@session.optimizer_trace_max_mem_size 16384 show session variables like 'optimizer_trace_max_mem_size'; Variable_name Value optimizer_trace_max_mem_size 16384 select * from information_schema.session_variables where variable_name='optimizer_trace_max_mem_size'; VARIABLE_NAME VARIABLE_VALUE OPTIMIZER_TRACE_MAX_MEM_SIZE 16384 set session optimizer_trace_max_mem_size=10; select @@session.optimizer_trace_max_mem_size; @@session.optimizer_trace_max_mem_size 10 show session variables like 'optimizer_trace_max_mem_size'; Variable_name Value optimizer_trace_max_mem_size 10 set session optimizer_trace_max_mem_size=0; select @@session.optimizer_trace_max_mem_size; @@session.optimizer_trace_max_mem_size 0 show session variables like 'optimizer_trace_max_mem_size'; Variable_name Value optimizer_trace_max_mem_size 0 set session optimizer_trace_max_mem_size=-100; Warnings: Warning 1292 Truncated incorrect optimizer_trace_max_mem_size value: '-100' select @@session.optimizer_trace_max_mem_size; @@session.optimizer_trace_max_mem_size 0 show session variables like 'optimizer_trace_max_mem_size'; Variable_name Value optimizer_trace_max_mem_size 0 set session optimizer_trace_max_mem_size=2000000000; select @@session.optimizer_trace_max_mem_size; @@session.optimizer_trace_max_mem_size 2000000000 show session variables like 'optimizer_trace_max_mem_size'; Variable_name Value optimizer_trace_max_mem_size 2000000000 set session optimizer_trace_max_mem_size=default; select @@session.optimizer_trace_max_mem_size; @@session.optimizer_trace_max_mem_size 5 show session variables like 'optimizer_trace_max_mem_size'; Variable_name Value optimizer_trace_max_mem_size 5 set global optimizer_trace_max_mem_size=default; select @@global.optimizer_trace_max_mem_size; @@global.optimizer_trace_max_mem_size 16384 show global variables like 'optimizer_trace_max_mem_size'; Variable_name Value optimizer_trace_max_mem_size 16384 set optimizer_trace_max_mem_size=1.1; ERROR 42000: Incorrect argument type to variable 'optimizer_trace_max_mem_size' set optimizer_trace_max_mem_size="foobar"; ERROR 42000: Incorrect argument type to variable 'optimizer_trace_max_mem_size'