@Override
protected void accept0(SQLASTVisitor visitor) {
if (visitor instanceof PGASTVisitor) {
PGASTVisitor pgVisitor = (PGASTVisitor) visitor;
if (pgVisitor.visit(this)) {
if (pgVisitor instanceof PGOutputVisitor)
{
PGOutputVisitor pgv = (PGOutputVisitor) pgVisitor;
pgv.print(this.rowCount.toString());
if (this.offset != null)