public static String mapTypeNameSynonyms(String typeName) {
    typeName = typeName.toLowerCase();
    switch (typeName) {
    case "long":
      return serdeConstants.BIGINT_TYPE_NAME;
    case "string_family":
      return serdeConstants.STRING_TYPE_NAME;
    default:
      return typeName;
    }
  }
Invoke special handling for expressions that can't be vectorized by regular
descriptor based lookup.
ql/src/java/org/apache/hadoop/hive/ql/exec/vector/VectorizationContext.java