查看alter table 进度

UPDATE performance_schema.setup_instruments SET ENABLED = 'YES' WHERE NAME LIKE 'stage/innodb/alter%';

select stmt.SQL_TEXT as sql_text, concat(WORK_COMPLETED, '/' , WORK_ESTIMATED) as progress, (stage.TIMER_END - stmt.TIMER_START) / 1e12 as current_seconds, (stage.TIMER_END - stmt.TIMER_START) / 1e12 * (WORK_ESTIMATED-WORK_COMPLETED) / WORK_COMPLETED as remaining_seconds from events_stages_current stage, events_statements_current stmt where stage.THREAD_ID = stmt.THREAD_ID and stage.NESTING_EVENT_ID = stmt.EVENT_ID;