public static boolean areColumnStatsUptoDate(Map<String, String> params, String colName) {
    if (params == null) {
      return false;
    }
    ColumnStatsAccurate stats = parseStatsAcc(params.get(COLUMN_STATS_ACCURATE));
    return stats.columnStats.containsKey(colName);
  }
Get json representation of the ColumnStatsSetup
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/common/StatsSetupConst.java