On Mon, Feb 24, 2025 at 11:50 AM Dominique Devienne <ddevienne@xxxxxxxxx> wrote:
We lookup whether there's a list of aliases for "Allison". If there are, we send them in $3 as an array
of string (e.g. ['All', 'Alli', ...], and the first one matching (thanks to order by ord limit 1) is returned, if any.
Thanks, I understand it now. While the unnest will create a different plan, it should fundamentally be the same. The join order will not matter. The only consideration is if the unnest list grows very, very large, which seems unlikely given your situation. And yes, it should be fine to set the first name as the leading item in the array and only run a single query for both cases.
As always, it's best to test on your data and your exact queries, but from here it seems sane.
Cheers,
Greg
--
Crunchy Data - https://www.crunchydata.com
Enterprise Postgres Software Products & Tech Support
