private void deleteStatValRows() throws SQLException {
        try (final Connection connection = sqlStatisticsDbConnProvider.getConnection()) {
            DbTestUtil.truncateTables(connection, List.of(SQLStatisticNames.SQL_STATISTIC_VALUE_TABLE_NAME));
        }
    }
The aim of this test is for multiple threads to be flushing stats into SQL_STAT_VAL_SRC
and for the main thread to be constantly running the aggregation to exercise contention
on any db locks.
Useful for testing the performance of the two process when running concurrently.
stroom-app/src/test/java/stroom/statistics/impl/sql/TestSQLStatisticFlushTaskHandler.java