tsFuncExpr.setChildren(children);
VectorExpression ve = vc.getVectorExpression(tsFuncExpr);
Assert.assertEquals(VectorUDFYearLong.class, ve.getClass());
//GenericUDFToUnixTimeStamp
GenericUDFToUnixTimeStamp gudf = new GenericUDFToUnixTimeStamp();
tsFuncExpr.setGenericUDF(gudf);
tsFuncExpr.setTypeInfo(TypeInfoFactory.longTypeInfo);
ve = vc.getVectorExpression(tsFuncExpr);
Assert.assertEquals(VectorUDFUnixTimeStampLong.class, ve.getClass());
}