Cube Store: AVG does not support IntDecimal(5)

[ilya-biryukov]

Steps to reproduce:

SELECT AVG(x) FROM s.Data

where x is of decimal type.

Expected: the query runs fine. Actual: error from the issue title.

[igorlukanin]

I was able to reproduce this on Cube v0.36.7. However, I wonder if this is something that affects any users...