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--source include/not_embedded.inc --source include/not_gtid_enabled.inc SET @start_global_value = @@session.gtid_next; SELECT @start_global_value; # # exists as session only # --error ER_INCORRECT_GLOBAL_LOCAL_VAR select @@global.gtid_next; select @@session.gtid_next; show global variables like 'gtid_next'; show session variables like 'gtid_next'; --disable_warnings select * from information_schema.global_variables where variable_name='gtid_next'; select * from information_schema.session_variables where variable_name='gtid_next'; --enable_warnings # # show that it is writable # --error ER_LOCAL_VARIABLE set global gtid_next = 1; set session gtid_next = "ANONYMOUS"; select @@session.gtid_next; # # Show that one can set it to default # ROLLBACK; set session gtid_next=default; select @@session.gtid_next; # # Show that one cannot set it to NULL # ROLLBACK; --error ER_WRONG_VALUE_FOR_VAR set session gtid_next=NULL; select @@session.gtid_next; # # Bug #20753378 ASSERTION `GTID_NEXT->TYPE != AUTOMATIC_GROUP || THD->OWNED_GTID.IS_EMPTY()' # # Setting SESSION.GTID_NEXT=default right after setting # SESSION.GTID_NEXT='ANONYMOUS' causes an error # 'ER_CANT_SET_GTID_NEXT_WHEN_OWNING_GTID', but this # changed gtid_next type from 'ANONYMOUS' to 'AUTOMATIC'. # So that the next transaction causes the above assertion error. # # Setting SESSION.GTID_NEXT=default should not change the # gtid_next type if it causes an error. # # Steps to reproduce: # 1) Set @@SESSION.GTID_NEXT to ANONYMOUS. # 2) Set @@SESSION.GTID_NEXT to default to cause the # error ER_CANT_SET_GTID_NEXT_WHEN_OWNING_GTID. # 3) Execute 'SELECT @@SESSION.GTID_NEXT' to verify there is no # assersion caused and gtid_next type is still ANONYMOUS. # SET @@SESSION.GTID_NEXT = 'ANONYMOUS'; --error ER_CANT_SET_GTID_NEXT_WHEN_OWNING_GTID SET @@SESSION.GTID_NEXT = default; # Verify that there is no assersion caused and # gtid_next type is still ANONYMOUS. SELECT @@SESSION.GTID_NEXT; # # restore original value # ROLLBACK; set session gtid_next = @start_global_value; select @@session.gtid_next; # # See rpl_gtid_execution.test for a comprehensive test case. #