GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/19465
[SPARK-21988]Implement StreamingRelation.computeStats to fix explain
## What changes were proposed in this pull request?
Implement StreamingRelation.computeStats to fix explain
## How was this patch tested?
- unit tests: `StreamingRelation.computeStats` and
`StreamingExecutionRelation.computeStats`.
- regression tests: `explain join with a normal source` and `explain join
with MemoryStream`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark SPARK-21988
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19465.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #19465
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