I’ve noticed a few N+1 queries in our graphql app. The fix in each case is to add a dataloader to the first repeated query, but finding them is hard.
I would like to find all requests that have this problem.
The SQL query is in the resource column in apm.
I would like to be able to do something like (pseudocode):
select count(*), root_span_id, resource
from spans
group by root_span_id, resource
order by count desc
and then dig into any requests that are making a lot of the same sql requests.
If it is not possible to group on two columns then grouping by root_span_id would be enough to get me started.
Unfortunately, @_trace_root is just a boolean (1 or empty) telling me whether something is a root span or not.
Is there a column that I can group by to group by root span, or another way to hunt for n+1 queries in datadog?
I feel like sentry has done this n+1 query hunting for me automatically on previous projects, but I never dug into how it’s done, and I can’t seem replicate it on datadog. Any ideas?
