private void resetTSAndType() {
    latestTSOfCurrentColumn = HConstants.LATEST_TIMESTAMP;
    latestTypeOfCurrentColumn = 0;
  }
Check whether this version should be retained. There are 4 variables considered: If this
version is past max versions -> skip it If this kv has expired or was deleted, check min
versions to decide whther to skip it or not. Increase the version counter unless this is a
delete
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/ScanWildcardColumnTracker.java