>The subquery for a join is in the :query of the environment.

what does this mean?

@ahmed1hsn in a query like: [{:foo [:bar]}], {:foo [:bar]} is the join, [:bar] is the sub-query of the join, and when doing processing, if you read the :query from the env var while processing that join, it will have the sub-query [:bar] there

makes sense?

👍