Re: PATCH: adaptive ndistinct estimator v4 - Mailing list pgsql-hackers

From Greg Stark
Subject Re: PATCH: adaptive ndistinct estimator v4
Date
Msg-id CAM-w4HPta0Jhcv2q5vhwGJ6oL_=Fe1rz9NEkn-3+2W0+UzWR2g@mail.gmail.com
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In response to Re: PATCH: adaptive ndistinct estimator v4  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Responses Re: PATCH: adaptive ndistinct estimator v4
List pgsql-hackers
<p dir="ltr">> The simple workaround for this was adding a fallback to GEE when f[1] or f[2] is 0. GEE is another
estimatordescribed in the paper, behaving much better in those cases.<p dir="ltr">For completeness, what's the downside
injust always using GEE? 

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