[SPARK-54008] Skip QO for DESCRIBE QUERY #52713
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What changes were proposed in this pull request?
Avoid the unnecessary query execution for the DESCRIBE QUERY command.
Why are the changes needed?
Makes DESCRIBE QUERY more efficient by avoiding unnecessary work.
Does this PR introduce any user-facing change?
No
How was this patch tested?
Existing tests.
Was this patch authored or co-authored using generative AI tooling?
No