SET @save_storage_engine= @@default_storage_engine;
SET default_storage_engine= InnoDB;
#
# MDEV-16708: Unsupported commands for prepared statements
#
# Disable ps-protocol explicitly in order to test support of
# prepared statements for use case when statements passed
# to the server via text client-server protocol (in contrast
# with binary protocol used in the test file
# ps_missed_cmds_bin_prot.test)
# Test case 20: Check that the CREATE EVENT/ALTER EVENT/DROP EVENT
# statements can be executed as a prepared statement
PREPARE stmt_1 FROM "CREATE EVENT e1 ON SCHEDULE AT CURRENT_TIMESTAMP - INTERVAL 1 DAY ON COMPLETION PRESERVE DO SET @a=1";
PREPARE stmt_2 FROM "ALTER EVENT e1 COMMENT 'New comment'";
PREPARE stmt_3 FROM "DROP EVENT e1";
# Create the event e1 that specifies time in past. Such event is created
# just for the sake of its existence and never will be triggered.
# Disable warnings temprorary in order to hide the following warnings
# generated in result of execution the 'CREATE EVENT' statement:
#   "1544 | Event execution time is in the past. Event has been disabled"
#   "1105 | Event scheduler is switched off, use SET GLOBAL event_scheduler=ON to enable it."
EXECUTE stmt_1;
# Execute the same prepared statement the second time to check that
# no internal structures used for handling the 'CREATE EVENT' statement
# were damaged. Execution of this statement the second time expectedly
# results in emitting the error ER_EVENT_ALREADY_EXISTS since the event
# with the same name has just been created.
EXECUTE stmt_1;
ERROR HY000: Event 'e1' already exists
# Alter event e1
EXECUTE stmt_2;
# Execute the same prepared statement the second time to check that
# no internal structures used for handling the 'ALTER EVENT' statement
# were damaged.
EXECUTE stmt_2;
# Drop event e1
EXECUTE stmt_3;
# Execute the same prepared statement the second time to check that
# no internal structures used for handling the 'DROP EVENT' statement
# were damaged. Execution of this statement the second time expectedly
# results in emitting the error ER_EVENT_DOESNT_EXIST since the event
# with the same name has just been dropped.
EXECUTE stmt_3;
ERROR HY000: Unknown event 'e1'
# Clean up
DEALLOCATE PREPARE stmt_1;
DEALLOCATE PREPARE stmt_2;
DEALLOCATE PREPARE stmt_3;
# Test case 22: Check that the 'SHOW RELAYLOG EVENTS' statement can be
# executed as a prepared statement.
PREPARE stmt_1 FROM 'SHOW RELAYLOG EVENTS';
EXECUTE stmt_1;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
# Execute the same prepared statement the second time to check that
# no internal structures used for handling the 'SHOW RELAYLOG EVENTS'
# statement were damaged.
EXECUTE stmt_1;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
# Clean up
DEALLOCATE PREPARE stmt_1;
SET default_storage_engine= @save_storage_engine;