wangshuo128 opened a new pull request #30901:
URL: https://github.com/apache/spark/pull/30901
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### What changes were proposed in this pull request?
```sql
CREATE TABLE insertTable(i int, part int) USING PARQUET PARTITIONED BY
(part);
INSERT INTO TABLE insertTable PARTITION(part=1) SELECT 1;
SET spark.sql.sources.partitionOverwriteMode=DYNAMIC;
INSERT OVERWRITE TABLE insertTable PARTITION(part=1)
SELECT i + 1 FROM insertTable WHERE part = 1;
```
The SQL will fail because Spark complains "Cannot overwrite a path that is
also being read from."
### Why are the changes needed?
Allow users to insert overwrite the same table with static partition if
`spark.sql.sources.partitionOverwriteMode` is set to `DYNAMIC`.
### Does this PR introduce _any_ user-facing change?
Yes.
### How was this patch tested?
New UT.
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