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sql/clear_rebate_remark_without_upload_record_id.sql

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+-- =============================================================================
+-- 清理「无 uploadRecordId」的后返备注，便于重新上传后带上批次 ID
+-- 执行前请先备份 jd_order 或整库；建议先跑预览 SELECT
+-- 库名请按实际执行 USE（示例库名 jd）
+-- =============================================================================
+
+-- USE jd;
+
+-- ---------------------------------------------------------------------------
+-- 方案 A（推荐）：整条 JSON 里从未出现 "uploadRecordId" 的订单 → 整段清空为 []
+-- 适用：历史导入都没有批次 ID，准备整批重传
+-- ---------------------------------------------------------------------------
+
+SELECT COUNT(*) AS cnt_will_clear
+FROM jd_order
+WHERE rebate_remark_json IS NOT NULL
+  AND CHAR_LENGTH(TRIM(rebate_remark_json)) > 2
+  AND rebate_remark_json NOT LIKE '%"uploadRecordId"%';
+
+/*
+START TRANSACTION;
+
+UPDATE jd_order
+SET rebate_remark_json = '[]',
+    rebate_remark_has_abnormal = 0
+WHERE rebate_remark_json IS NOT NULL
+  AND CHAR_LENGTH(TRIM(rebate_remark_json)) > 2
+  AND rebate_remark_json NOT LIKE '%"uploadRecordId"%';
+
+COMMIT;
+-- 若需回滚：ROLLBACK;
+*/
+
+
+-- ---------------------------------------------------------------------------
+-- 方案 B（可选，MySQL 8.0+）：从 JSON 数组里只保留带 uploadRecordId 的元素
+-- 适用：同一订单里混有新旧备注，只想删掉无批次 ID 的旧条
+-- 要求：rebate_remark_json 为合法 JSON；无效行会报错，请先修正或跳过
+-- ---------------------------------------------------------------------------
+
+/*
+START TRANSACTION;
+
+UPDATE jd_order o
+INNER JOIN (
+  SELECT o2.id AS oid,
+    COALESCE(
+      (
+        SELECT JSON_ARRAYAGG(j.elem)
+        FROM JSON_TABLE(o2.rebate_remark_json, '$[*]'
+          COLUMNS (elem JSON PATH '$')
+        ) AS j
+        WHERE JSON_EXTRACT(j.elem, '$.uploadRecordId') IS NOT NULL
+      ),
+      JSON_ARRAY()
+    ) AS new_j
+  FROM jd_order o2
+  WHERE o2.rebate_remark_json IS NOT NULL
+    AND CHAR_LENGTH(TRIM(o2.rebate_remark_json)) > 2
+    AND JSON_VALID(o2.rebate_remark_json)
+) t ON o.id = t.oid
+SET o.rebate_remark_json = CAST(t.new_j AS CHAR),
+    o.rebate_remark_has_abnormal = CASE
+      WHEN JSON_LENGTH(t.new_j) = 0 THEN 0
+      WHEN CAST(t.new_j AS CHAR) LIKE '%"abnormal":true%' THEN 1
+      ELSE 0
+    END
+WHERE CAST(t.new_j AS CHAR) <> o.rebate_remark_json;
+
+COMMIT;
+*/