If there is a big error between real working set size and the
estimated one, pre-scan may return just a single result table during
split, which may result in a never-ending task.
If pre-scan returns invalid output, we should adjust the threshold
based on the actual working set size. The number of output tables
should be at least equal to or greater than 2.
If there is a big error between real working set size and the estimated one, pre-scan may return just a single result table during split, which may result in a never-ending task.
If pre-scan returns invalid output, we should adjust the threshold based on the actual working set size. The number of output tables should be at least equal to or greater than 2.