issues: 494095795

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
494095795 MDU6SXNzdWU0OTQwOTU3OTU= 3311 optimize compatibility checks in merge.unique_variable 2448579 closed 0     0 2019-09-16T14:43:39Z 2019-11-05T15:41:15Z 2019-11-05T15:41:15Z MEMBER      

Currently merge.unique_variable does this

if equals is None: out = out.compute() for var in variables[1:]: equals = getattr(out, compat)(var) if not equals: break

out (=variables[0]) is always computed though it may not be necessary.

One solution would be to loop through once checking attrs, shapes and _data. If these checks were satisfied, then we execute the above code

 
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