// So lookup and save any needed conf information during query compilation in the Hive conf
// (where there should be valid HiveConf from SessionState). Plan serialization will ensure
// we have access to these values in the map/reduce tasks.
if (confLookupNeeded) {
CompatLevel compatLevel = HiveCompat.getCompatLevel(SessionState.get().getConf());
ansiSqlArithmetic = compatLevel.ordinal() > CompatLevel.HIVE_0_12.ordinal();
confLookupNeeded = false;
}
leftOI = (PrimitiveObjectInspector) arguments[0];
rightOI = (PrimitiveObjectInspector) arguments[1];