Increases the maximum amount of workspace allocated to internal lookup tables. These tables are created when a set primitive is executed. Lookup tables are faster than hash tables, and are used when hashing is not required.

Note:

The purpose of this function is to allow the user to evaluate potential side-effects of the proposed increase in table size in the next major version of Dyalog.

Y may be ⍬, or an integer from 0 to 16777216.

If Y is between 1 and 16777216 the function sets the lookup table size in bytes to that value. If Y is 0, the lookup table size is reset to its default value. In both cases, the shy result R is the previous value of the table size.

If Y is ⍬ the size is unaffected and the (non-shy) result is the current value of the scale factor.

It is recommended that users test their code using the maximum value.

For more information, see Search Functions and Hash Tables and Hash Array.