Re: Add estimated hit ratio to Memoize in EXPLAIN to explain cost adjustment

[Andrei Lepikhov]

On 5/1/25 14:22, Ilia Evdokimov wrote:
     Estimated Hit Percent: 50.00
Any suggestions?
I still think that two meaningful digits are enough for an EXPLAIN. We 
usually need to estimate the tuple set's size, not a precise number of 
tuples or groups. And definitely, not an arbitrarily chosen two digits 
after the point. So, IMO, good examples may look like the following:
50%, 5.0%, 0.00051%.

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regards, Andrei Lepikhov