Description of alter_table

ALTER TABLE [ schema. ] table
  [ memoptimize_read_clause ]
  [ alter_table_properties
  | column_clauses
  | constraint_clauses
  | alter_table_partitioning
  | alter_external_table
  | move_table_clause
  | modify_to_partitioned
  | modify_opaque_type
  ]
  [ enable_disable_clause
  | { ENABLE | DISABLE }
    { TABLE LOCK | ALL TRIGGERS | CONTAINER_MAP | CONTAINERS_DEFAULT }
  ] ...
  ;