-- 三 Sheet 共用一次修订,ALL 仅表示跨三类数据的导入动作,详见 ADR-0051。 ALTER TABLE t_test_data_revision_action DROP CONSTRAINT chk_data_revision_type; ALTER TABLE t_test_data_revision_action ADD CONSTRAINT chk_data_revision_type CHECK (data_type IN ('REALTIME', 'STEP', 'CYCLE') OR (data_type = 'ALL' AND operation_type = 'IMPORT'));