refactor(export): 移除导出SQL中的枚举转换并增强错误标记详细信息

- 导出接口取消白名单过滤，字段导出与前端选择保持一致
- 构建SQL时移除所有CASE WHEN枚举字段转换，改由业务层处理
- 增加实际使用字段列表返回，解决字段列数不匹配问题
- ExportRepo.MarkFailed 增加失败原因和上下文参数，丰富失败日志
- 导出任务多个失败分支均调用MarkFailed并传递详细错误上下文
- 日志中增加导出失败详细信息，包含错误、数据源、字段、SQL及参数
- 删除无用的枚举映射代码，简化SQL构建逻辑
- 保障创建时间区间过滤的格式和参数合法性检查
- 增加导出SQL构建时被白名单过滤字段的日志输出，方便调试

server/internal/api/exports.go

@@ -96,7 +96,6 @@ func (a *ExportsAPI) create(w http.ResponseWriter, r *http.Request) {
 	if p.Datasource != "" {
 		ds = p.Datasource
 	}
-	wl := Whitelist()
 	// ensure filters map initialized
 	if p.Filters == nil {
 		p.Filters = map[string]interface{}{}
@@ -256,12 +255,16 @@ func (a *ExportsAPI) create(w http.ResponseWriter, r *http.Request) {
 	}
 	// relax: creator_in 非必填，若权限中提供其他边界将被合并为等值过滤
 	req := exporter.BuildRequest{MainTable: main, Datasource: ds, Fields: filtered, Filters: p.Filters}
-	q, args, err := rrepo.Build(req, wl)
+	q, args, usedFields, err := rrepo.BuildWithFields(req, nil) // 取消白名单过滤，前端选择多少字段就导出多少
 	if err != nil {
 		r = WithSQL(r, q)
 		fail(w, r, http.StatusBadRequest, err.Error())
 		return
 	}
+	// 使用实际使用的字段列表（解决白名单过滤后列数不匹配问题）
+	if len(usedFields) > 0 {
+		filtered = usedFields
+	}
 	r = WithSQL(r, q)
 	logging.JSON("INFO", map[string]interface{}{"event": "export_sql", "datasource": ds, "main_table": main, "file_format": p.FileFormat, "sql": q, "args": args, "final_sql": renderSQL(q, args)})
 	log.Printf("export_sql ds=%s main=%s fmt=%s sql=%s args=%v final_sql=%s", ds, main, p.FileFormat, q, args, renderSQL(q, args))
@@ -351,7 +354,11 @@ func (a *ExportsAPI) runJob(id uint64, db *sql.DB, q string, args []interface{},
 				"format": fmt,
 			})
 			log.Printf("[EXPORT_FAILED] job_id=%d reason=panic error=%v fields=%v", id, r, fields)
-			repo.NewExportRepo().MarkFailed(a.meta, id)
+			repo.NewExportRepo().MarkFailed(a.meta, id, "export_panic", map[string]interface{}{
+				"error":  utils.ToString(r),
+				"fields": fields,
+				"format": fmt,
+			})
 		}
 	}()
 	// load datasource once for transform decisions
@@ -459,7 +466,12 @@ func (a *ExportsAPI) runJob(id uint64, db *sql.DB, q string, args []interface{},
 								"args":       cargs,
 							})
 							log.Printf("[EXPORT_FAILED] job_id=%d stage=csv_chunk error=%v sql=%s", id, e, cq)
-							rrepo.MarkFailed(a.meta, id)
+							rrepo.MarkFailed(a.meta, id, "csv_chunk_stream_error", map[string]interface{}{
+								"error":      e.Error(),
+								"datasource": jobDS,
+								"sql":        cq,
+								"args":       cargs,
+							})
 							return
 						}
 						total += cnt
@@ -513,7 +525,12 @@ func (a *ExportsAPI) runJob(id uint64, db *sql.DB, q string, args []interface{},
 					"sql":        q,
 				})
 				log.Printf("[EXPORT_FAILED] job_id=%d stage=xlsx_direct error=%v fields_count=%d", id, err, len(fields))
-				rrepo.MarkFailed(a.meta, id)
+				rrepo.MarkFailed(a.meta, id, "csv_direct_stream_error", map[string]interface{}{
+					"error":      err.Error(),
+					"datasource": jobDS,
+					"fields":     fields,
+					"sql":        q,
+				})
 				return
 			}
 			if len(files2) >= 1 {
@@ -605,9 +622,14 @@ func (a *ExportsAPI) runJob(id uint64, db *sql.DB, q string, args []interface{},
 						}
 						cnt, _, e := rrepo.StreamCursor(db, cq, cargs, cur, batch, cols, newWriter, transform, constants.ExportThresholds.MaxRowsPerFile, onRoll, onProgress)
 						if e != nil {
-							logging.JSON("ERROR", map[string]interface{}{"event": "export_stream_error", "job_id": id, "stage": "xlsx_chunk", "error": e.Error()})
+							logging.JSON("ERROR", map[string]interface{}{"event": "export_stream_error", "job_id": id, "stage": "xlsx_chunk", "error": e.Error(), "datasource": jobDS, "sql": cq, "args": cargs})
 							log.Printf("export_stream_error job_id=%d stage=xlsx_chunk err=%v", id, e)
-							rrepo.MarkFailed(a.meta, id)
+							rrepo.MarkFailed(a.meta, id, "xlsx_chunk_stream_error", map[string]interface{}{
+								"error":      e.Error(),
+								"datasource": jobDS,
+								"sql":        cq,
+								"args":       cargs,
+							})
 							return
 						}
 						total += cnt
@@ -641,14 +663,32 @@ func (a *ExportsAPI) runJob(id uint64, db *sql.DB, q string, args []interface{},
 		if err != nil {
 			logging.JSON("ERROR", map[string]interface{}{"event": "export_writer_error", "job_id": id, "stage": "xlsx_direct", "error": err.Error()})
 			log.Printf("export_writer_error job_id=%d stage=xlsx_direct err=%v", id, err)
-			a.meta.Exec("UPDATE export_jobs SET status=?, finished_at=? WHERE id= ?", string(constants.JobStatusFailed), time.Now(), id)
+			rrepo.MarkFailed(a.meta, id, "xlsx_writer_creation_failed", map[string]interface{}{
+				"error": err.Error(),
+				"stage": "xlsx_direct",
+			})
 			return
 		}
 		_ = x.WriteHeader(cols)
 		rrepo.UpdateProgress(a.meta, id, 0)
 		rows, err := db.Query(q, args...)
 		if err != nil {
-			a.meta.Exec("UPDATE export_jobs SET status=?, finished_at=? WHERE id= ?", string(constants.JobStatusFailed), time.Now(), id)
+			logging.JSON("ERROR", map[string]interface{}{
+				"event":      "export_query_error",
+				"job_id":     id,
+				"stage":      "xlsx_direct",
+				"error":      err.Error(),
+				"datasource": jobDS,
+				"sql":        q,
+				"args":       args,
+			})
+			log.Printf("[EXPORT_FAILED] job_id=%d stage=xlsx_direct_query error=%v", id, err)
+			rrepo.MarkFailed(a.meta, id, "xlsx_query_failed", map[string]interface{}{
+				"error":      err.Error(),
+				"datasource": jobDS,
+				"sql":        q,
+				"args":       args,
+			})
 			return
 		}
 		defer rows.Close()
@@ -661,7 +701,18 @@ func (a *ExportsAPI) runJob(id uint64, db *sql.DB, q string, args []interface{},
 		var tick int64
 		for rows.Next() {
 			if err := rows.Scan(dest...); err != nil {
-				a.meta.Exec("UPDATE export_jobs SET status=?, finished_at=? WHERE id=?", string(constants.JobStatusFailed), time.Now(), id)
+				logging.JSON("ERROR", map[string]interface{}{
+					"event":  "export_scan_error",
+					"job_id": id,
+					"stage":  "xlsx_direct",
+					"error":  err.Error(),
+					"count":  count,
+				})
+				log.Printf("[EXPORT_FAILED] job_id=%d stage=xlsx_direct_scan error=%v count=%d", id, err, count)
+				rrepo.MarkFailed(a.meta, id, "xlsx_scan_failed", map[string]interface{}{
+					"error": err.Error(),
+					"count": count,
+				})
 				return
 			}
 			vals := make([]string, len(cols))
@@ -689,7 +740,15 @@ func (a *ExportsAPI) runJob(id uint64, db *sql.DB, q string, args []interface{},
 		rrepo.MarkCompleted(a.meta, id, count)
 		return
 	}
-	a.meta.Exec("UPDATE export_jobs SET status=?, finished_at=?, updated_at=? WHERE id= ?", string(constants.JobStatusFailed), time.Now(), time.Now(), id)
+	logging.JSON("ERROR", map[string]interface{}{
+		"event":  "export_format_unsupported",
+		"job_id": id,
+		"format": fmt,
+	})
+	log.Printf("[EXPORT_FAILED] job_id=%d reason=unsupported_format format=%s", id, fmt)
+	rrepo.MarkFailed(a.meta, id, "unsupported_format", map[string]interface{}{
+		"format": fmt,
+	})
 }
 
 // recompute final rows for a job and correct export_jobs.total_rows

server/internal/exporter/sqlbuilder.go

@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"server/internal/constants"
+	"log"
 	"server/internal/schema"
 	"server/internal/utils"
 	"strings"
@@ -34,8 +34,14 @@ type BuildRequest struct {
 }
 
 func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{}, error) {
+	sql, args, _, err := BuildSQLWithFields(req, whitelist)
+	return sql, args, err
+}
+
+// BuildSQLWithFields 构建SQL并返回实际使用的字段列表
+func BuildSQLWithFields(req BuildRequest, whitelist map[string]bool) (string, []interface{}, []string, error) {
 	if req.MainTable != "order" && req.MainTable != "order_info" {
-		return "", nil, errors.New("unsupported main table")
+		return "", nil, nil, errors.New("unsupported main table")
 	}
 	sch := schema.Get(req.Datasource, req.MainTable)
 	if req.Datasource == "marketing" && req.MainTable == "order" {
@@ -43,20 +49,22 @@ func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{
 			switch t := v.(type) {
 			case []interface{}:
 				if len(t) != 2 {
-					return "", nil, errors.New("create_time_between 需要两个时间值")
+					return "", nil, nil, errors.New("create_time_between 需要两个时间值")
 				}
 			case []string:
 				if len(t) != 2 {
-					return "", nil, errors.New("create_time_between 需要两个时间值")
+					return "", nil, nil, errors.New("create_time_between 需要两个时间值")
 				}
 			default:
-				return "", nil, errors.New("create_time_between 格式错误")
+				return "", nil, nil, errors.New("create_time_between 格式错误")
 			}
 		} else {
-			return "", nil, errors.New("缺少时间过滤：必须提供 create_time_between")
+			return "", nil, nil, errors.New("缺少时间过滤：必须提供 create_time_between")
 		}
 	}
 	cols := []string{}
+	usedFields := []string{}    // 记录实际使用的字段
+	skippedFields := []string{} // 记录被过滤的字段
 	need := map[string]bool{}
 	for _, tf := range req.Fields {
 		// normalize YMT physical names saved previously to logical names
@@ -64,11 +72,12 @@ func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{
 			tf = strings.Replace(tf, "order_info.", "order.", 1)
 		}
 		if whitelist != nil && !whitelist[tf] {
+			skippedFields = append(skippedFields, tf)
 			continue
 		}
 		parts := strings.Split(tf, ".")
 		if len(parts) != 2 {
-			return "", nil, errors.New("invalid field format")
+			return "", nil, nil, errors.New("invalid field format")
 		}
 		t, f := parts[0], parts[1]
 		if req.Datasource == "marketing" && t == "order_voucher" && f == "channel_batch_no" {
@@ -80,137 +89,64 @@ func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{
 		need[t] = true
 		mt := sch.TableName(t)
 		mf, _ := sch.MapField(t, f)
-		if req.Datasource == "marketing" && t == "order" && req.MainTable == "order" {
-			if f == "status" {
-				cols = append(cols, constants.BuildCaseWhen("order", "status", constants.MarketingOrderStatus, "order.status"))
-				continue
-			}
-			if f == "type" {
-				cols = append(cols, constants.BuildCaseWhen("order", "type", constants.MarketingOrderType, "order.type"))
-				continue
-			}
-			if f == "pay_type" {
-				cols = append(cols, constants.BuildCaseWhen("order", "pay_type", constants.MarketingPayType, "order.pay_type"))
-				continue
-			}
-			if f == "pay_status" {
-				cols = append(cols, constants.BuildCaseWhen("order", "pay_status", constants.MarketingPayStatus, "order.pay_status"))
-				continue
-			}
-			// card_code: export raw value (no masking) per business requirement
-		}
-		if req.Datasource == "ymt" && t == "order" {
-			if f == "type" {
-				cols = append(cols, constants.BuildCaseWhen(mt, "type", constants.YMTOrderType, "order.type"))
-				continue
-			}
-			if f == "recharge_suc_time" {
-				// 仅在充值成功状态下展示充值成功时间，其余状态展示为空
-				cols = append(cols, "CASE WHEN `"+mt+"`.status = 3 THEN `"+mt+"`.recharge_suc_time ELSE NULL END AS `order.recharge_suc_time`")
-				continue
-			}
-			if f == "status" {
-				cols = append(cols, constants.BuildCaseWhen(mt, "status", constants.YMTOrderStatus, "order.status"))
-				continue
-			}
-			if f == "pay_status" {
-				cols = append(cols, constants.BuildCaseWhen(mt, "pay_status", constants.YMTPayStatus, "order.pay_status"))
-				continue
-			}
-			if f == "is_retry" {
-				cols = append(cols, constants.BuildCaseWhen(mt, "is_retry", constants.YMTIsRetry, "order.is_retry"))
-				continue
-			}
-			if f == "supplier_name" {
+		// 特殊处理：supplier_name需要JOIN supplier表
+		if req.Datasource == "ymt" && t == "order" && f == "supplier_name" {
 			need["supplier"] = true
 			cols = append(cols, "`supplier`.name AS `order.supplier_name`")
+			usedFields = append(usedFields, tf)
 			continue
 		}
-			if f == "is_inner" {
-				cols = append(cols, constants.BuildCaseWhen(mt, "is_inner", constants.YMTIsInner, "order.is_inner"))
-				continue
+		// 移除所有CASE WHEN枚举转换，直接查询原始字段
+		// 以下字段不再做CASE WHEN，在业务层转换
+		if req.Datasource == "ymt" && t == "activity" && f == "settlement_type" {
+			// 移除枚举转换
 		}
+		if t == "merchant" && f == "third_party" {
+			// 移除枚举转换
 		}
-		if req.Datasource == "ymt" && t == "activity" {
-			if f == "settlement_type" {
-				cols = append(cols, constants.BuildCaseWhen(mt, "settlement_type", constants.YMTSettlementType, "activity.settlement_type"))
-				continue
-			}
-		}
-		if t == "merchant" {
-			if f == "third_party" {
-				cols = append(cols, constants.BuildCaseWhen(mt, "third_party", constants.ThirdPartyType, "merchant.third_party"))
-				continue
-			}
-		}
-		// Generic mapping for order.is_retry across datasources
 		if t == "order" && f == "is_retry" {
-			cols = append(cols, constants.BuildCaseWhen(mt, "is_retry", constants.YMTIsRetry, "order.is_retry"))
-			continue
+			// 移除枚举转换
 		}
-		// Generic mapping for order.is_inner across datasources
 		if t == "order" && f == "is_inner" {
-			cols = append(cols, constants.BuildCaseWhen(mt, "is_inner", constants.YMTIsInner, "order.is_inner"))
-			continue
+			// 移除枚举转换
 		}
-		if req.Datasource == "ymt" && t == "order_digit" {
-			if f == "order_type" {
-				cols = append(cols, constants.BuildCaseWhen(mt, "order_type", constants.OrderDigitOrderType, "order_digit.order_type"))
-				continue
-			}
-			if f == "sms_channel" {
-				// 短信渠道枚举：1=官方，2=专票
-				cols = append(cols, constants.BuildCaseWhen(mt, "sms_channel", constants.OrderDigitSmsChannel, "order_digit.sms_channel"))
-				continue
+		if req.Datasource == "ymt" && t == "order_digit" && f == "order_type" {
+			// 移除枚举转换
 		}
+		if t == "order_digit" && f == "sms_channel" {
+			// 移除枚举转换
 		}
 		if t == "order_cash" && f == "receive_status" {
-			// 营销与易码通枚举不同，按数据源分别映射
-			if req.Datasource == "ymt" {
-				cols = append(cols, "CASE `order_cash`.receive_status WHEN 1 THEN '待领取' WHEN 2 THEN '领取中' WHEN 3 THEN '领取成功' WHEN 4 THEN '领取失败' ELSE '' END AS `order_cash.receive_status`")
-			} else {
-				cols = append(cols, "CASE `order_cash`.receive_status WHEN 0 THEN '待领取' WHEN 1 THEN '领取中' WHEN 2 THEN '领取成功' WHEN 3 THEN '领取失败' ELSE '' END AS `order_cash.receive_status`")
-			}
-			continue
-		}
-		// YMT 的 order_cash 表无 is_confirm 字段，输出占位常量
-		if req.Datasource == "ymt" && t == "order_cash" && f == "is_confirm" {
-			cols = append(cols, "0 AS `order_cash.is_confirm`")
-			continue
+			// 移除枚举转换
 		}
 		if t == "order_cash" && f == "channel" {
-			cols = append(cols, "CASE `order_cash`.channel WHEN 1 THEN '支付宝' WHEN 2 THEN '微信' WHEN 3 THEN '云闪付' ELSE '' END AS `order_cash.channel`")
-			continue
+			// 移除枚举转换
 		}
 		if t == "order_voucher" && f == "channel" {
-			cols = append(cols, "CASE `order_voucher`.channel WHEN 1 THEN '支付宝' WHEN 2 THEN '微信' WHEN 3 THEN '云闪付' ELSE '' END AS `order_voucher.channel`")
-			continue
-		}
-		if req.Datasource == "ymt" && t == "order_voucher" && f == "status" {
-			cols = append(cols, "CASE `order_voucher`.status WHEN 1 THEN '待发放' WHEN 2 THEN '发放中' WHEN 3 THEN '发放失败' WHEN 4 THEN '待核销' WHEN 5 THEN '已核销' WHEN 6 THEN '已过期' WHEN 7 THEN '已退款' ELSE '' END AS `order_voucher.status`")
-			continue
+			// 移除枚举转换
 		}
 		if t == "order_voucher" && f == "status" {
-			cols = append(cols, "CASE `order_voucher`.status WHEN 1 THEN '可用' WHEN 2 THEN '已实扣' WHEN 3 THEN '已过期' WHEN 4 THEN '已退款' WHEN 5 THEN '领取失败' WHEN 6 THEN '发放中' WHEN 7 THEN '部分退款' WHEN 8 THEN '已退回' WHEN 9 THEN '发放失败' ELSE '' END AS `order_voucher.status`")
-			continue
+			// 移除枚举转换
 		}
 		if t == "order_voucher" && f == "receive_mode" {
-			cols = append(cols, "CASE `order_voucher`.receive_mode WHEN 1 THEN '渠道授权用户id' WHEN 2 THEN '手机号或邮箱' ELSE '' END AS `order_voucher.receive_mode`")
-			continue
+			// 移除枚举转换
 		}
 		if t == "order_voucher" && f == "out_biz_no" {
 			cols = append(cols, "'' AS `order_voucher.out_biz_no`")
+			usedFields = append(usedFields, tf)
 			continue
 		}
 		// Fallback for YMT tables that are not joined in schema: voucher, voucher_batch, merchant_key_send
 		if req.Datasource == "ymt" && (t == "voucher" || t == "voucher_batch" || t == "merchant_key_send") {
 			cols = append(cols, "'' AS `"+t+"."+f+"`")
+			usedFields = append(usedFields, tf)
 			continue
 		}
 		cols = append(cols, "`"+mt+"`."+escape(mf)+" AS `"+t+"."+f+"`")
+		usedFields = append(usedFields, tf)
 	}
 	if len(cols) == 0 {
-		return "", nil, errors.New("no fields")
+		return "", nil, nil, errors.New("no fields")
 	}
 	sb := strings.Builder{}
 	baseCols := strings.Join(cols, ",")
@@ -369,7 +305,7 @@ func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{
 		b, _ := json.Marshal(v)
 		json.Unmarshal(b, &arr)
 		if len(arr) != 2 {
-			return "", nil, errors.New("create_time_between requires 2 values")
+			return "", nil, nil, errors.New("create_time_between requires 2 values")
 		}
 		if tbl, col, ok := sch.FilterColumn("create_time_between"); ok {
 			where = append(where, fmt.Sprintf("`%s`.%s BETWEEN ? AND ?", sch.TableName(tbl), escape(col)))
@@ -535,7 +471,12 @@ func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{
 		sb.WriteString(" WHERE ")
 		sb.WriteString(strings.Join(where, " AND "))
 	}
-	return sb.String(), args, nil
+	// 记录被白名单过滤的字段（方便调试）
+	if len(skippedFields) > 0 {
+		log.Printf("[BUILD_SQL] skipped_fields (not in whitelist): %v, used_fields_count: %d, skipped_count: %d",
+			skippedFields, len(usedFields), len(skippedFields))
+	}
+	return sb.String(), args, usedFields, nil
 }
 
 func escape(s string) string {

server/internal/repo/export_repo.go

@@ -27,6 +27,11 @@ func (r *ExportQueryRepo) Build(req exporter.BuildRequest, whitelist map[string]
 	return exporter.BuildSQL(req, whitelist)
 }
 
+// BuildWithFields 构建SQL查询并返回实际使用的字段列表
+func (r *ExportQueryRepo) BuildWithFields(req exporter.BuildRequest, whitelist map[string]bool) (string, []interface{}, []string, error) {
+	return exporter.BuildSQLWithFields(req, whitelist)
+}
+
 // Explain 执行EXPLAIN分析
 func (r *ExportQueryRepo) Explain(db *sql.DB, query string, args []interface{}) (int, []string, error) {
 	return exporter.EvaluateExplain(db, query, args)
@@ -245,14 +250,29 @@ func (r *ExportQueryRepo) UpdateProgress(metaDB *sql.DB, jobID uint64, totalRows
 }
 
 // MarkFailed 标记任务失败
-func (r *ExportQueryRepo) MarkFailed(metaDB *sql.DB, jobID uint64) {
+func (r *ExportQueryRepo) MarkFailed(metaDB *sql.DB, jobID uint64, reason string, context map[string]interface{}) {
 	now := time.Now()
+
+	// 记录失败原因和上下文（符合MarkFailed调用日志记录规范）
+	logContext := map[string]interface{}{
+		"event":  "mark_failed",
+		"job_id": jobID,
+		"reason": reason,
+		"time":   now,
+	}
+	if context != nil {
+		for k, v := range context {
+			logContext[k] = v
+		}
+	}
+	logging.JSON("ERROR", logContext)
+
 	_, err := metaDB.Exec(
 		"UPDATE export_jobs SET status=?, finished_at=? WHERE id=?",
 		string(constants.JobStatusFailed), now, jobID,
 	)
 	if err != nil {
-		logging.DBError("mark_failed", jobID, err)
+		logging.DBError("mark_failed_update", jobID, err)
 	}
 }