Zhen Wang

[#1628] Avoid exception caused by calling release multiple times

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### What changes were proposed in this pull request? Set internal buffer to null after release. ### Why are the changes needed? address https://github.com/apache/incubator-uniffle/issues/1628#issuecomment-2182902051 Fix: #1628 ### Does this PR...

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[VL][UNIFFLE] Remove inc BytesWritten in VeloxUniffleColumnarShuffleWriter

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## What changes were proposed in this pull request? Remove inc BytesWritten in VeloxUniffleColumnarShuffleWriter Fixes: #6269 ## How was this patch tested?

### Backend VL (Velox) ### Bug description BytesWritten is double counted in uniffle shuffle writer. Gluten side: https://github.com/apache/incubator-gluten/blob/86449d0c87437002d6d2636e079420cacb258d82/gluten-uniffle/velox/src/main/java/org/apache/spark/shuffle/writer/VeloxUniffleColumnarShuffleWriter.java#L220 Uniffle side: https://github.com/apache/incubator-uniffle/blob/e0a2e3db23094452432be45c8331cd1ef948c962/client-spark/common/src/main/java/org/apache/spark/shuffle/writer/WriteBufferManager.java#L392 ### Spark version None ### Spark configurations _No response_...

[KYUUBI #6577] Add spark sql engine plugin module and define a sql stringify plugin

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# :mag: Description ## Issue References 🔗 This pull request fixes #6577 ## Describe Your Solution 🔧 Define a PlanOnlyExecutor interface to extend plan only mode of spark engine using...

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[FEATURE] Support gluten plan only mode to explain gluten plan fallback summary

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### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) ### Search before asking - [X] I have searched in the [issues](https://github.com/apache/kyuubi/issues?q=is%3Aissue) and found no...

[#2072] improvement: Corrected buffer offsets in NoOpCodec.decompress

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### What changes were proposed in this pull request? Corrected buffer offsets in NoOpCodec.decompress ### Why are the changes needed? Make NoOpCodec.decompress logic consistent with other codecs. Fix: # (issue)...

[SPARK-48922][SQL] Optimize nested data type insertion performance

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### What changes were proposed in this pull request? To improve insertion performance, we do not need to add transform expressions when there is no conversion for complex types. ###...

Specify JDK 11 for spark engine on kubernetes it

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# :mag: Description ## Issue References 🔗 `Spark Engine On Kubernetes Integration Test` always fails after #6739 The default java version of Ubuntu 24.04 is OpenJDK 21: https://discourse.ubuntu.com/t/ubuntu-24-04-lts-noble-numbat-release-notes/39890#openjdk , this...