[#2587] feat(spark-connector): Support iceberg metadataColumns #3180
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…pache#2717) ### What changes were proposed in this pull request? Support retrieve iceberg metadataColumns, such as `_spec_id`, `_partition`, `_file`, `_pos`, `_deleted`. ### Why are the changes needed? Support retrieve iceberg metadataColumns, row-level operations depend on this. Fix: apache#2587 ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? New integration test.
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What changes were proposed in this pull request?
Support retrieve iceberg metadataColumns, such as
_spec_id,_partition,_file,_pos,_deleted.Why are the changes needed?
Support retrieve iceberg metadataColumns, row-level operations depend on
this.
Fix: #2587
Does this PR introduce any user-facing change?
No.
How was this patch tested?
New integration test.