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# # exists as a session only # # 2010-01-20 OBN - Added check for session I_S values being equal to variable value # - Added check for session variable value being numberic # --error ER_INCORRECT_GLOBAL_LOCAL_VAR select @@global.pseudo_thread_id; # Check the variable has a valid numeric value (assumed to be less then 10000) select @@session.pseudo_thread_id between 1 and 10000; --echo should be empty show global variables like 'pseudo_thread_id'; # Check that shows returns a value (can't confirm the actual one) --replace_column 2 # show session variables like 'pseudo_thread_id'; # Global I_S variable is empty --echo should be empty --disable_warnings select * from information_schema.global_variables where variable_name='pseudo_thread_id'; --enable_warnings # Check that I_S value is same as variable --disable_warnings select @@session.pseudo_thread_id = variable_value from information_schema.session_variables where variable_name='pseudo_thread_id'; --enable_warnings # # show that it's writable # set session pseudo_thread_id=42; select @@session.pseudo_thread_id; --disable_warnings select * from information_schema.global_variables where variable_name='pseudo_thread_id'; select variable_value from information_schema.session_variables where variable_name='pseudo_thread_id'; --enable_warnings --error ER_LOCAL_VARIABLE set global pseudo_thread_id=1; # # incorrect types # --error ER_WRONG_TYPE_FOR_VAR set session pseudo_thread_id=1.1; --error ER_WRONG_TYPE_FOR_VAR set session pseudo_thread_id=1e1; --error ER_WRONG_TYPE_FOR_VAR set session pseudo_thread_id="foo";