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Re: PostgreSQL needs percentage function - Mailing list pgsql-general

From Corey Taylor
Subject Re: PostgreSQL needs percentage function
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Msg-id CADBz385ZUfOUN18aVUf9P-TxXW2o_gZWGJ=Wyf=8ytiz-_SP1Q@mail.gmail.com
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In response to Re: PostgreSQL needs percentage function  ("David G. Johnston" <david.g.johnston@gmail.com>)
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On Mon, Dec 18, 2017 at 11:01 AM, David G. Johnston <david.g.johnston@gmail.com> wrote:
​Do you mean:

SELECT id, val, val / (sum(val) OVER ())
FROM vals;​


You could end up with a percentage > 100 or divide by 0 with that if the values are not in a proper range.  I don't know if that would be the intention.

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