
1.Add UniqueIndex field to Field's struct。 2.Resolve UniqueIndex value from StructField. in migrator/migrator.go -> MigrateColumn 1.check unique, Check for the uniqueIndex and unique simultaneously
1.Add UniqueIndex field to Field's struct。 2.Resolve UniqueIndex value from StructField. in migrator/migrator.go -> MigrateColumn 1.check unique, Check for the uniqueIndex and unique simultaneously