Github user rdblue commented on the issue:
https://github.com/apache/spark/pull/17540
@zsxwing, what do you think the right way forward is? The "problem" with
this patch seems to actually be a wide-spread problem with the data sources API
-- it doesn't correctly link into SQL plans. I don't think this should be
blocked by that problem since there are many queries that have no entry in the
SQL tab (and also no metrics) and the current problems also cause the effects
that @cloud-fan's test demonstrated where the write operation isn't shown.
I think it would be better to introduce this patch, with regressions, and
follow up by fixing the data source code.
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