Github user mgaido91 commented on the issue:
https://github.com/apache/spark/pull/21568
@rxin the PR does what was suggested in these 2 comments
https://github.com/apache/spark/pull/20023#issuecomment-358306751 and
https://github.com/apache/spark/pull/21529#issuecomment-396413144. Basically we
want to run the same SQL test file with different configs.
We have two cases:
- Running with different configs produces different output (so different
golden files);
- Running with different configs produces the same output (so we have only
one golden file) but the tests are run against different configs.
The goals are to avoid to copy and paste the same queries after setting
different configurations (as it was done in `decimalArithmeticOperations`) and
to be able to improve test coverage for the joins (because with default configs
we basically always execute broadcast joins).
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