private void beginLinearSearch() throws IOException {
    sync(rangeStart);
    this.getIOContext().setBinarySearching(false);
    this.wasUsingSortedSearch = false;
  }
This should be called after the binary search is finished and before the linear scan begins
@throws IOException
ql/src/java/org/apache/hadoop/hive/ql/io/HiveContextAwareRecordReader.java