text: -- +migrate Up
  
  CREATE INDEX htrd_by_base_account ON history_trades USING BTREE(base_account_id);
  CREATE INDEX htrd_by_counter_account ON history_trades USING BTREE(counter_account_id);
  
  -- +migrate Down
  
  DROP INDEX htrd_by_base_account;
  DROP INDEX htrd_by_counter_account;