Date: Fri, 5 Dec 2025 05:41:44 -0800 (PST)
From: Rich Shepard <rshepard@appl-ecosys.com>
To: "pgsql-general@postgresql.org" <pgsql-general@postgresql.org>
Subject: Re: Extract only maximum date from column
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On Thu, 4 Dec 2025, David G. Johnston wrote:

>> So:
>> Select person.*, lastcontact.*
>> from people
>> join lateral (select contacts.*
>>      from contacts
>>      where contacts.person_nbr = people.person_nbr
>>      order by last_contact_date
>>      desc limit 1)
>> as lastcontact on true;

> I was giving you a query form. You should use the actual table and column
> names in your schema…

David,

The two table names are 'people' and 'contacts', the columns are
'person_nbr' and 'last_contact.' I usually use aliases rather than the table
name to reference the column.

Rich