导出系统

internal/model/export_task.go

@@ -85,11 +85,11 @@ type ExportShardTask struct {
 	gorm.Model
 	BaseModel `gorm:"embedded"`
 
-	TaskID      uint   `gorm:"column:task_id;type:bigint;index:idx_export_shard_task_task_status,priority:1;not null;comment:主任务ID" json:"task_id"`
-	ShardNo     int    `gorm:"column:shard_no;type:int;not null;comment:分片序号(从1开始)" json:"shard_no"`
-	Status      int    `gorm:"column:status;type:int;index:idx_export_shard_task_task_status,priority:2;not null;default:1;comment:分片状态 1-待处理 2-处理中 3-已成功 4-已失败 5-已取消" json:"status"`
-	CursorStart uint64 `gorm:"column:cursor_start;type:bigint;not null;default:0;comment:分片游标起点(不含)" json:"cursor_start"`
-	CursorEnd   uint64 `gorm:"column:cursor_end;type:bigint;not null;default:0;comment:分片游标终点(含)" json:"cursor_end"`
+	TaskID      uint `gorm:"column:task_id;type:bigint;index:idx_export_shard_task_task_status,priority:1;not null;comment:主任务ID" json:"task_id"`
+	ShardNo     int  `gorm:"column:shard_no;type:int;not null;comment:分片序号(从1开始)" json:"shard_no"`
+	Status      int  `gorm:"column:status;type:int;index:idx_export_shard_task_task_status,priority:2;not null;default:1;comment:分片状态 1-待处理 2-处理中 3-已成功 4-已失败 5-已取消" json:"status"`
+	ShardOffset int  `gorm:"column:shard_offset;type:bigint;not null;default:0;comment:分片偏移量(offset)" json:"shard_offset"`
+	ShardLimit  int  `gorm:"column:shard_limit;type:int;not null;default:0;comment:分片行数上限(limit)" json:"shard_limit"`
 
 	RowCount      int        `gorm:"column:row_count;type:int;not null;default:0;comment:分片行数" json:"row_count"`
 	ProcessedRows int        `gorm:"column:processed_rows;type:int;not null;default:0;comment:分片已处理行数" json:"processed_rows"`