-- =============================================================================
-- 达梦 DM8：综合态势（单表，可重复执行）
-- 接口：GET /biReport/comprehensive
-- 执行顺序：删除历史多表/旧快照 → 建 BI_COMPREHENSIVE_SNAPSHOT → 示例 INSERT
-- PAYLOAD_JSON 与 ComprehensiveSituationVO 字段名一致；应用取 UPDATE_TIME 最新一条。
-- =============================================================================

-- 子表优先
DROP TABLE IF EXISTS BI_COMPREHENSIVE_INCOME_TREND;
DROP TABLE IF EXISTS BI_COMPREHENSIVE_METRIC;
DROP TABLE IF EXISTS BI_COMPREHENSIVE_SNAPSHOT;

CREATE TABLE BI_COMPREHENSIVE_SNAPSHOT (
    ID            BIGINT   IDENTITY(1,1) NOT NULL,
    PAYLOAD_JSON  CLOB     NOT NULL,
    CREATE_TIME   DATETIME DEFAULT NULL,
    UPDATE_TIME   DATETIME DEFAULT NULL,
    REMARK        VARCHAR(500) DEFAULT NULL,
    PRIMARY KEY (ID)
);
CREATE INDEX IDX_BI_COMP_SNAP_UPD ON BI_COMPREHENSIVE_SNAPSHOT(UPDATE_TIME);
COMMENT ON TABLE BI_COMPREHENSIVE_SNAPSHOT IS '综合态势-整包 JSON 快照';

INSERT INTO BI_COMPREHENSIVE_SNAPSHOT (PAYLOAD_JSON, CREATE_TIME, UPDATE_TIME)
VALUES (
'{"valueAddedServiceIncome":5330000,"inventoryTurnover":25,"orderCount":42300,"vehicleUtilizationRate":97.4,"fuelConsumptionPerHundredKm":15,"incomeTrend":[280,210,260,310,470,390]}',
    SYSDATE,
    SYSDATE
);

COMMIT;