Implement this interface to provide a new load balancing strategy for URLs of
the form "jdbc:mysql:loadbalance://..", and provide the implementation class
name as the configuration parameter "loadBalanceStrategy".
Does the batch (if any) contain "plain" statements added by
Statement.addBatch(String)?
If so, we can't re-write it to use multi-value or multi-queries.
A RowHolder implementation that holds one row packet (which is re-used by the
driver, and thus saves memory allocations), and tries when possible to avoid
allocations to break out the results as individual byte[]s.