On Sat, 17 Jul 2021 at 16:40, Justin Pryzby <pryzby@telsasoft.com> wrote:
> You could run a single UPDATE rather than 30k triggers.
> Or switch to an INSERT on the table, with an index on it, and call
> max(last_parent_table_change) from whatever needs to ingest it. And prune the
> old entries and vacuum it outside the transaction. Maybe someone else will
> have a better suggestion.
Maybe just change the UPDATE statement to:
UPDATE data_sync SET last_parent_table_change=CURRENT_TIMESTAMP WHERE
last_parent_table_change <> CURRENT_TIMESTAMP;
That should reduce the number of actual updates to 1 per transaction.
David
