GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/17089
[SPARK-19756][SQL] drop the table cache after inserting into a data source
table
## What changes were proposed in this pull request?
When we inserting into a table, we should uncache it to avoid exposing
stale data. This is the existing behavior for hive tables, see
`InsertIntoHiveTable`, this PR fixes this problem for data source tables.
## How was this patch tested?
new regression test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark minor
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17089.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 #17089
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