private boolean deleteTempTableColumnStatsForTable(String dbName, String tableName)
      throws NoSuchObjectException {
    Map<String, ColumnStatisticsObj> deletedEntry =
        getTempTableColumnStatsForTable(dbName, tableName);
    if (deletedEntry != null) {
      SessionState.get().getTempTableColStats().remove(
          StatsUtils.getFullyQualifiedTableName(dbName, tableName));
    } else {
      throw new NoSuchObjectException("Column stats doesn't exist for db=" + dbName +
          " temp table=" + tableName);
    }
    return true;
  }
@param dbName actual database name
@param tblName actual table name or search pattern (for error message)
ql/src/java/org/apache/hadoop/hive/ql/metadata/SessionHiveMetaStoreClient.java