public static void overrideConfProps(HiveConf conf, CompactionInfo ci, Map<String, String> properties) {
    overrideConfProps(conf, new StringableMap(ci.properties), properties);
  }
Check for that special case when minor compaction is supported or not.
<ul>
  <li>The table is Insert-only OR</li>
  <li>Query based compaction is not enabled OR</li>
  <li>The table has only acid data in it.</li>
</ul>
@param tblProperties The properties of the table to check
@param dir The {@link AcidDirectory} instance pointing to the table's folder on the filesystem.
@return Returns true if minor compaction is supported based on the given parameters, false otherwise.
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/CompactorUtil.java