presto-jmx/src/main/java/io/prestosql/plugin/jmx/JmxHistoricalData.java/JmxHistoricalData/addRow
class JmxHistoricalData:    public synchronized void addRow(String tableName, List<Object> row)
    {
        String lowerCaseTableName = tableName.toLowerCase(Locale.ENGLISH);
        checkArgument(tableData.containsKey(lowerCaseTableName));
        tableData.get(lowerCaseTableName).add(row);
    }