Use joins instead of includes

What does this MR do and why?

Relates to #344278 (closed)

The old query had been reading extra columns before, which was a blocker for data tam as it always timed out/failed.

In this MR, we restrict the columns we read with the count operation using left_outer_joins.

We validated this query with the data team (slack thread [Internal]) and works with their requirement. The output from the query is also the same as before with reduced loading of columns.

Query explain - https://console.postgres.ai/shared/b20e2d31-4523-4750-8dcb-ba90de96262f

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