Oracle RDB - RDMS$BIND_SORT_ALGORITHM

Hi,

we are using

$rmu/show version

Executing RMU for Oracle Rdb V7.3-200 on OpenVMS IA64 V8.4-2

In some of our procedure we are using the logical

$! RDMS$BIND_SORT_ALGORITHM settings

$! - 0: choose algorithm based on cardinality

$! - 1: replacement selection (default)

$! - 2: Alpha sort

$     WRITE SYS$OUTPUT "DEFINING RDMS$BIND_SORT_ALGORITHM "

$     DEFINE RDMS$BIND_SORT_ALGORITHM 2

I did not find anything in the RDB Documentation about it.

It was introduce in 2006 as fix a "COSI%-F-VASFULL virtual adress space full" problem.

Is this logical still supported?

If not: How is it ensured that we do not run again in the VASFULL problem?