Improve performance of analysis 117

[ganisimov]

Since HAVING clause removes records which don't match obs_month, we can use INNER JOIN here.

This is to address problem in Databricks where small table in LEFT JOIN is not broadcasted when it's on left side.

Related issue #690

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 0.00%. Comparing base (5fdd05c) to head (cd0c03a).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #756       +/-   ##
===========================================
- Coverage    12.74%   0.00%   -12.75%     
===========================================
  Files           14      14               
  Lines         3649    3649               
===========================================
- Hits           465       0      -465     
- Misses        3184    3649      +465     

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