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Specifying this will allow the client to prefetch up to
prefetchChunks
PartialResultSet chunks for each read and query. The data size of each chunk depends on the
server implementation but a good rule of thumb is that each chunk will be up to 1 MiB. Larger
values reduce the likelihood of blocking while consuming results at the cost of greater
memory consumption.
prefetchChunks should be greater than 0. To get good performance
choose a value that is large enough to allow buffering of chunks for an entire row. Apart
from the buffered chunks, there can be at most one more row buffered in the client. This can
be overriden on a per read/query basis by
Options#prefetchChunks(). If unspecified,
we will use a default value (currently 4).