nestedAlias := utils.NestedRelationName(parentTableName, rel.Name)
							if _, ok := specifiedRelationsName[nestedAlias]; !ok {
								fromClause.Joins = append(fromClause.Joins, genJoinClause(join.JoinType, parentTableName, rel))
								specifiedRelationsName[nestedAlias] = nil
							}

							if parentTableName != clause.CurrentTable {