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[VL] Add VeloxDelta.md for Delta Lake feature support #11733

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[VL] Add VeloxDelta.md for Delta Lake feature support #11733

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61fea11
Add IcebergDelta.md for Delta Lake feature support
zhztheplayer Mar 10, 2026
c0cdb2f
Change TimestampNTZ support from Yes to No
zhztheplayer Mar 10, 2026
8932e0f
Update IcebergDelta.md
zhztheplayer Mar 10, 2026
91e7ec0
Change CHECK constraints support to 'No' for Gluten
zhztheplayer Mar 10, 2026
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Rename IcebergDelta.md to VeloxDelta.md
zhztheplayer Mar 10, 2026
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22 changes: 22 additions & 0 deletions docs/get-started/VeloxDelta.md
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# Delta Lake Feature Support Status in Apache Gluten (Velox Backend, Spark 3.5)

This document summarizes the current support status of **Delta Lake table features** when used with **Apache Gluten (Velox backend)** on **Apache Spark 3.5**.

| Feature | Delta minWriterVersion | Delta minReaderVersion | Iceberg format-version | Feature type | Supported by Gluten (Velox) |
|---|---:|---:|---:|---|---|
| Basic functionality | 2 | 1 | 1 | Writer | Yes |
| CHECK constraints | 3 | 1 | N/A | Writer | No |
| Change data feed | 4 | 1 | N/A | Writer | Yes |
| Generated columns | 4 | 1 | N/A | Writer | Partial |
| Column mapping | 5 | 2 | N/A | Reader and writer | Yes |
| Identity columns | 6 | 1 | N/A | Writer | Yes |
| Row tracking | 7 | 1 | 3 | Writer | Partial |
| Deletion vectors | 7 | 3 | 3 | Reader and writer | Partial |
| TimestampNTZ | 7 | 3 | 1 | Reader and writer | No |
| Liquid clustering | 7 | 3 | 1 | Reader and writer | Yes |
| Iceberg readers (UniForm) | 7 | 2 | N/A | Writer | Not tested |
| Type widening | 7 | 3 | N/A | Reader and writer | Partial |
| Variant | 7 | 3 | 3 | Reader and writer | Not tested |
| Variant shredding | 7 | 3 | 3 | Reader and writer | Not tested |
| Collations | 7 | 3 | N/A | Reader and writer | Not tested |
| Protected checkpoints | 7 | 1 | N/A | Writer | Not tested |
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