EqualExpression eq = new EqualExpression(exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
exprOpsMap.put(op, eq);
}
public void visit(LOUserFunc op) throws VisitorException {
UserFuncExpression exp = new UserFuncExpression(exprPlan, op.getFuncSpec(), op.getType());
List<ExpressionOperator> args = op.getArguments();
for( ExpressionOperator arg : args ) {
LogicalExpression expArg = exprOpsMap.get(arg);