Indexing on IN operator where clause

Hi,

I am having a hard time creating index that will support this query properly, all that I have tried had either only looked into a._type being “rate” or not looking at anything at all.
I basically have two different buckets, data & metadata.
I am trying to join metadata on data and also filter by existence of fields and several ids in the data object.
Here is how my query looks like:

SELECT rate FROM data AS rate
JOIN metadata as service_to_cat_mapping ON KEYS rate.service_to_cat_mapping_id
WHERE rate._type = "rate"
AND service_to_cat_mapping._type = "service_to_cat_mapping"
AND rate.service_category_id = 'cat_1234'
AND rate.custom_data.zip_code = '11111'
AND (rate.custom_data.city = 'New York' OR rate.custom_data.city = '' OR rate.custom_data.city is null)
AND rate.custom_data.is_valid = false
AND service_to_cat_mapping.is_active = true
AND rate.job_id IN ['job_123','job_1234','job_12345']
AND rate.provider_id IN ['provider_123','provider_1234','provider_12345']

Couchbase version: Version: 4.1.0-5005 Community Edition (build-5005)

Can you test this on Couchbase 4.5.1 EE.