Re: infinite loop in an update statement

[Fabrice Chapuis <fabrice636861@xxxxxxxxx>]

On Tue, Sep 10, 2024 at 4:49 PM Fabrice Chapuis <fabrice636861@xxxxxxxxx> wrote:

no lock, in view pg_stat_activity

status = active

wait event = NULL

wait event type = NULL

On Mon, Sep 9, 2024 at 5:00 PM Tom Lane <tgl@xxxxxxxxxxxxx> wrote:

Fabrice Chapuis <fabrice636861@xxxxxxxxx> writes:
> why this update does not return instantly?

> UPDATE table_a a
>  SET col1 = (SELECT MIN(b.col1)
>                     FROM table_b b
>                     WHERE b.col2 = a.col2)

Maybe query is waiting for a lock on one of those tables?

                        regards, tom lane