MDL_STATEMENT MDL_context::acquire_lock BACKUP_LOCK MDL_INTENTION_EXCLUSIVE MDL_TRANSACTION MDL_context::acquire_lock SCHEMA d1 MDL_INTENTION_EXCLUSIVE MDL_TRANSACTION MDL_context::acquire_lock TABLE d1 t1 MDL_SHARED_UPGRADABLE MDL_TRANSACTION MDL_context::acquire_lock TABLESPACE d1/t1 MDL_INTENTION_EXCLUSIVE MDL_TRANSACTION MDL_context::acquire_lock GLOBAL MDL_INTENTION_EXCLUSIVE MDL_STATEMENT MDL_context::acquire_lock TABLE d1 t1 MDL_SHARED_UPGRADABLE MDL_TRANSACTION MDL_context::acquire_lock TABLE d1 #sql-1f4c7_9 MDL_EXCLUSIVE MDL_STATEMENT MDL_context::acquire_lock TABLE d1 t1 MDL_EXCLUSIVE MDL_TRANSACTION MDL_context::upgrade_shared_lock TABLE d1 t1 MDL_EXCLUSIVE MDL_context::downgrade_lock TABLE d1 t1 MDL_SHARED_UPGRADABLE (DDLによる変換処理...) MDL_context::acquire_lock TABLE d1 t1 MDL_EXCLUSIVE MDL_TRANSACTION MDL_context::upgrade_shared_lock TABLE d1 t1 MDL_EXCLUSIVE MDL_context::acquire_lock TABLESPACE d1/t1 MDL_INTENTION_EXCLUSIVE MDL_TRANSACTION MDL_context::acquire_lock GLOBAL MDL_INTENTION_EXCLUSIVE MDL_STATEMENT MDL_context::acquire_lock GLOBAL MDL_INTENTION_EXCLUSIVE MDL_STATEMENT MDL_context::acquire_lock TABLESPACE d1/t1 MDL_INTENTION_EXCLUSIVE MDL_TRANSACTION MDL_context::acquire_lock TABLESPACE d1/t1 MDL_INTENTION_EXCLUSIVE MDL_TRANSACTION MDL_context::acquire_lock TABLESPACE d1/t1 MDL_INTENTION_EXCLUSIVE MDL_TRANSACTION MDL_context::acquire_lock COMMIT MDL_INTENTION_EXCLUSIVE MDL_TRANSACTION MDL_context::release_lock COMMIT MDL_context::acquire_lock COLUMN_STATISTICS d1 t1 MDL_SHARED_READ MDL_STATEMENT MDL_context::acquire_lock COLUMN_STATISTICS d1 t1 MDL_SHARED_READ MDL_STATEMENT MDL_context::release_lock COLUMN_STATISTICS d1 t1 MDL_context::release_lock COLUMN_STATISTICS d1 t1 MDL_context::release_lock TABLE d1 #sql-1f4c7_9 MDL_context::release_lock GLOBAL MDL_context::release_lock TABLESPACE d1/t1 MDL_context::release_lock TABLE d1 t1 MDL_context::release_lock SCHEMA d1 MDL_context::release_lock BACKUP_LOCK MDL_context::acquire_lock TABLE dummy_sdi_db SDI_122 MDL_SHARED MDL_TRANSACTION MDL_context::release_lock TABLE dummy_sdi_db SDI_122 表: ALTER TABLE ADD INDEX実行中に取得されるMDL(時系列)