Row score is a measure of the references used to maintain recently used rows in memory. Each row in memory is assigned a score
based on the number and types of columns they have, which approximates the maximum number of references they could use.
Most columns score as 1; varchar binary, long binary, and UUID score as 2; long varchar scores as 4.
When the maximum score threshold is reached, the flush size is used to determine how many old rows to remove.
Keep the flush size (measured as a row score) reasonable (less than 1000) to prevent large interruptions.
Databases accessed with row limiting enabled always lazy load indexes. Turning off lazy loading also turns off row limiting
by setting the row score flush size to zero.