Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/17097
@meteorchenwu Correctness is more important for us. The cached plan will be
reused when we build any other plans. Thus, users might see the out-of-dated
results.
To achieve what you want, it requires introducing new concept, like
materialized views, which will not be used by plan matching.
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