public void stopWritingKeyIndex() {
      LOG.info("*** Stop writing index!");
      writeAcidIndexInfo = false;
    }
Bad version of KeyIndexBuilder which builds an invalid acid key index
by not including the key index info once stopWritingKeyIndex() is called.
ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestFixAcidKeyIndex.java