accept(x.getFrom());
accept(x.getUsing());
x.getTableSource().accept(this);
if (x.getTableSource() instanceof SQLExprTableSource) {
SQLName tableName = (SQLName) ((SQLExprTableSource) x.getTableSource()).getExpr();
String ident = tableName.toString();
setCurrentTable(x, ident);
TableStat stat = this.getTableStat(ident);
stat.incrementDeleteCount();
}