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Back in May there was a thread where Birgitta mentioned that "Sometime in
release 6.1? / 7.1?. the table scan for RRN was changed to an values list
access, i.e. the list containing RRNs is searched first and with the result
an access to the record performed.
"
A test with WHERE RRN(A) = 750000
Showed the "VALUES LIST" in Visual Explain.
However, today I tried
WHERE RRN(A) between 750000 and 750010
And I see a full table scan in VE.
This however, shows a values list..
WHERE RRN(A) IN (750000, 750001, 750002, 750003, 750004, 750005,
750006, 750007, 750008, 750009, 750010)
I'm running 7.1 TR 9.
Charles
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