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  3. June 2020

Re: Hash Table Probe

Greg,

Are we to understand that you're running two select statements? One that
generates a result set? Another that returns a count of 20-40?

Since the count is so low, it might be quicker to count the rows yourself
during a "fetch" loop as opposed to running "select count(*) ..."



On Wed, Jun 17, 2020 at 12:06 PM Greg Wilburn <
gwilburn@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

Sorry... I should have mentioned that I've already been through some of
these explanations.

It's returning a count of 20-40 (that's how many rows meet the
criteria)... The Select is using
OPTIMIZE FOR 250 ROWS (as suggested by the IBM DB group)

The SQL statements are executing within a CGI application... so I can only
really control the source (view) and the indexes.


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