Typo in 2.7 Aggregate Functions

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Тема Typo in 2.7 Aggregate Functions
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Msg-id 167388420869.2667301.17238386924074832449@wrigleys.postgresql.org
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Ответы Re: Typo in 2.7 Aggregate Functions  (Tom Lane <tgl@sss.pgh.pa.us>)
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The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/15/tutorial-agg.html
Description:

Near the end of Chapter 2.7 Aggregate Functions of the documentation, the
command FILTER is introduced. The full query is

SELECT city, max(temp_lo), count(*) FILTER (WHERE temp_lo < 30)
    FROM weather
    GROUP BY city
    HAVING max(temp_lo) < 40;

and the output shows a count value of 5. This is an error.

In total we only have 3 rows in the table so far. Furthermore, none of the
rows have temp_lo < 30. If I'm not mistaken, the count value should be 0.

Thanks,
Jimmy

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