if !strings.EqualFold(from.Table.BaseKey.String(), baseTableName) {
		return errBadTableName(errors.New("table name must be `s3object`"))
	}

	if len(from.Table.PathExpr) > 0 {
		if !from.Table.PathExpr[0].ArrayWildcard {
			return errBadTableName(errors.New("keypath table name is invalid - please check the service documentation"))
		}
	}
	return nil
}

func parseLimit(v *LitValue) (int64, error) {

		optimizer.ModifyStatement(stmt)
	} else {
		name := v.Name()
		c := stmt.Clauses[name]
		c.Name = name
		v.MergeClause(&c)
		stmt.Clauses[name] = c
	}
}

// AddClauseIfNotExists add clause if not exists
func (stmt *Statement) AddClauseIfNotExists(v clause.Interface) {
	if c, ok := stmt.Clauses[v.Name()]; !ok || c.Expression == nil {
		stmt.AddClause(v)
	}
}