@Override
public QueryStmt clone() {
SelectStmt selectClone =
new SelectStmt(
selectList_.clone(),
cloneTableRefs(),
(whereClause_ != null) ? whereClause_.clone(null) : null,
(groupingExprs_ != null) ? Expr.cloneList(groupingExprs_) : null,
(havingClause_ != null) ? havingClause_.clone(null) : null,
cloneOrderByElements(),
(limitElement_ != null) ? limitElement_.clone(null) : null);
selectClone.setWithClause(cloneWithClause());
return selectClone;
}