Re: WIP: make EXPLAIN ANALYZE show time spent in triggers

> The attached patch allows EXPLAIN ANALYZE to break out the time spent in
> triggers when EXPLAINing a statement that can fire triggers. Formerly
> this time was included in "Total runtime" but not otherwise accounted
> for.

Very nice.

> An example is
>
> regression=# explain analyze delete from foo;
> QUERY PLAN
> --------------------------------------------------------------------------------------------------------
> Seq Scan on foo (cost=0.00..172.70 rows=11770 width=6) (actual time=0.063..86.650 rows=10000 loops=1)
> Trigger RI_ConstraintTrigger_60781: time=3899.609 calls=10000
> Total runtime: 4218.309 ms
> (3 rows)

Could we get plain EXPLAIN output as well:

regression=# explain analyze delete from foo;
QUERY PLAN

--------------------------------------------------------------------------------------------------------
Seq Scan on foo (cost=0.00..172.70 rows=11770 width=6)
Trigger RI_ConstraintTrigger_60781: calls=11770
(2 rows)

Also, have you considered statement level triggers?

Chris