Re: array_agg() NULL Handling - Mailing list pgsql-hackers

From Tom Lane
Subject Re: array_agg() NULL Handling
Date
Msg-id 28324.1283365412@sss.pgh.pa.us
Whole thread Raw
In response to Re: array_agg() NULL Handling  ("David E. Wheeler" <david@kineticode.com>)
List pgsql-hackers
"David E. Wheeler" <david@kineticode.com> writes:
> On Sep 1, 2010, at 10:30 AM, Tom Lane wrote:
>> Most aggregate functions ignore null inputs, so that rows in which
>> one or more of the expression(s) yield null are discarded.  (This
>> can be assumed to be true, unless otherwise specified, for all
>> built-in aggregates.)

> I don't think you need the parentheses, though without them, "This" might be better written as "The ignoring of
NULLs".

Done, without the parentheses.  I didn't add "The ignoring of NULLs",
it seemed a bit too verbose.
        regards, tom lane


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