Re: User Index Question

[dhandy@xxxxxxxxxxx (Douglas Handy)]

Andrew,

>Any other suggestions on a way to a 'clear' a user index.

I didn't benchmark the timings, so I can't guarantee what I do is the
most efficient.  

However, the QUSRMVUI api allows you to remove multiple entries per
call (up to 4095).  On the theory that most of my user indexes will
have under 4096 entries, doing one remove call seems like it *should*
be faster than a delete/recreate.  So my service program routine for
ClrUsrIdx() does a loop requesting 4095 removes per pass, and quiting
when the returned number of entries actually removed is less than the
number requested.  For what I use them for so far, this should always
be a single pass through the loop.

That being said, let me reiterate that I never benchmarked it to
verify.  But I did want to point out you don't need to remove each
entry one at a time; you can mass remove up to 4095 entries. 

If you benchmark it, I'd be curious in the results.  (One nice thing
about using a service program routine to do the "clear" is that I can
easily switch it out to a delete/recreate and not affect existing
programs.)

Doug
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