[MrDarcy]

I meant this, linked directly off the big query cost estimation docs:

https://cloud.google.com/bigquery/docs/custom-quotas

> Custom quota is proactive, so you can't run an 11 TB query if you have a 10 TB quota. Creating a custom quota on query data lets you control costs at the project level or at the user level.

[yjftsjthsd-h]

Oh, good catch! Yes, that does look like something that can be coerced into limiting it. Having actually tried to click through, it is very much not as simple as "don't spend more than $X"; the doc points to https://console.cloud.google.com/iam-admin/quotas and you have to find and set the right quota, but yes that can probably help.