public void visit(LOCast cast) throws VisitorException {
byte b = cast.getType();
ExpressionOperator exp = cast.getExpression();
CastExpression c = new CastExpression(exprPlan, b, exprOpsMap.get(exp));
c.setFuncSpec(cast.getLoadFuncSpec());
exprOpsMap.put(cast, c);
}