Re: Extract only maximum date from column - Mailing list pgsql-general

From Bryan Sayer
Subject Re: Extract only maximum date from column
Date
Msg-id 39ec51cc-906f-483d-8136-2bc4b7523dd8@gmail.com
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In response to Re: Extract only maximum date from column  (Rich Shepard <rshepard@appl-ecosys.com>)
List pgsql-general

You don't include the where clause, just the having clause after the group by.

At least that is what I remember. But it has been awhile.

Bryan Sayer
Retired Demographer/Statistician
In a world in which you can be anything, be kind
On 12/4/2025 3:13 PM, Rich Shepard wrote:
On Thu, 4 Dec 2025, Bryan Sayer wrote:

I believe in general you need

having c.next_contact = max(c.next_contact)

(at least in ANSI SQL) Use having for after the join has occurred

Bryan,

Postgresql didn't like that regardless of where I inserted the `having'
stanza.

Thanks,

Rich


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