Increases the amount of workspace allocated to internal hash tables. These tables are created when a set primitive is executed or by the Hash Array function (1500⌶).

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 0, 1, 2, or 3.

If Y is 1, 2 or 3 the hash table size is increased by the factor 2*Y. If Y is 0, the hash table size is reset to its default value. In these cases, the shy result R is the previous value of the scale factor.

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 3.

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