ALTER TABLE et_runtime_data DROP COLUMN meter_test_status; ALTER TABLE et_runtime_data DROP COLUMN meter_comm_status; ALTER TABLE et_runtime_data DROP COLUMN active_power_l1; ALTER TABLE et_runtime_data DROP COLUMN active_power_l2; ALTER TABLE et_runtime_data DROP COLUMN active_power_l3; ALTER TABLE et_runtime_data DROP COLUMN active_power_total; ALTER TABLE et_runtime_data DROP COLUMN reactive_power_total; ALTER TABLE et_runtime_data DROP COLUMN meter_power_factor1; ALTER TABLE et_runtime_data DROP COLUMN meter_power_factor2; ALTER TABLE et_runtime_data DROP COLUMN meter_power_factor3; ALTER TABLE et_runtime_data DROP COLUMN meter_power_factor; ALTER TABLE et_runtime_data DROP COLUMN meter_frequency; ALTER TABLE et_runtime_data DROP COLUMN meter_energy_export_total; ALTER TABLE et_runtime_data DROP COLUMN meter_energy_import_total; ALTER TABLE et_runtime_data DROP COLUMN meter_active_power1; ALTER TABLE et_runtime_data DROP COLUMN meter_active_power2; ALTER TABLE et_runtime_data DROP COLUMN meter_active_power3; ALTER TABLE et_runtime_data DROP COLUMN meter_active_power_total; ALTER TABLE et_runtime_data DROP COLUMN meter_reactive_power1; ALTER TABLE et_runtime_data DROP COLUMN meter_reactive_power2; ALTER TABLE et_runtime_data DROP COLUMN meter_reactive_power3; ALTER TABLE et_runtime_data DROP COLUMN meter_reactive_power_total; ALTER TABLE et_runtime_data DROP COLUMN meter_apparent_power1; ALTER TABLE et_runtime_data DROP COLUMN meter_apparent_power2; ALTER TABLE et_runtime_data DROP COLUMN meter_apparent_power3; ALTER TABLE et_runtime_data DROP COLUMN meter_apparent_power_total; ALTER TABLE et_runtime_data DROP COLUMN meter_software_version;