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Re: Average New Users Per DOW - Mailing list pgsql-general

From Paul Jungwirth
Subject Re: Average New Users Per DOW
Date
Msg-id 559AC1B4.3040501@illuminatedcomputing.com
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In response to Average New Users Per DOW  (Robert DiFalco <robert.difalco@gmail.com>)
Responses Re: Average New Users Per DOW  (Robert DiFalco <robert.difalco@gmail.com>)
List pgsql-general
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 > I'm not sure how to create a result where I get the average number of
 > new users per day of the week. My issues are that days that did not
 > have any new users will not be factored into the average

This is a pretty common problem with time-series queries when there is
sparse data. My go-to solution is to use generate_series---in your case
from 0 to 6---then do a left join from there to your actual data.

Paul

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