anuragmantri commented on PR #57227:
URL: https://github.com/apache/spark/pull/57227#issuecomment-4960543758
There is one case I'm not really sure about, I would like to know what you
all think. There could be self-merge (same with self-insert) where relation
cache will load the `t` with target options only and does not load the source
options.
```sql
MERGE INTO t WITH (`write.split-size`=10) USING t WITH (`split-size`=5) s
ON ...
```
`split-size` will be lost in this case for source read. I don't think this a
common case to self merge. So I have not addressed it in this PR. Do you think
we should address this?
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