Dice query only returning with a specific fields condition - sql

Question

We're doing a dice olap query that gets a certain production company's total revenue of a specific year on the schema below:
Using this query:
SELECT PC.name, RC.year, SUM(revenue) as total_revenue
FROM movies_reception_facts MR
JOIN ref_calendar RC ON MR.release_date_key = RC.date_key
JOIN pc_groups PG ON MR.pc_group_key = PG.pc_group_key
JOIN movies_pc MP ON PG.pc_group_key = MP.pc_group_key
JOIN production_companies PC ON MP.pc_id = PC.pc_id
WHERE PC.pc_id IN(
SELECT pc_id
FROM production_companies
WHERE name = 'Disney') AND
RC.date_key IN(
SELECT RC.date_key
FROM ref_calendar
WHERE RC.year = 2014
)
GROUP BY (PC.name, RC.year)
The problem is that, it's only returning results when the year is set to 2014: WHERE RC.year = 2014. Any other value would return an empty row.

Answer 1

I'm not sure if this fixes your problem, but that subquery is problematic. First, if you did use a subquery, it would be:
RC.date_key IN(
SELECT RC2.date_key
FROM ref_calendar RC2
WHERE RC2.year = 2014
)
But a subquery is not necessary. You can just replace the logic with:
RC.year = 2014
Then putting this condition in the IN clause is silly. It should be a filter in the outer where. And since the tables are already joined in, I think you just want:
WHERE pc.name = 'Disney' AND
RC.year = 2014
That said, I'm not sure if this fixes your problem of no data being returned for other years.