[GLUTEN-11550][VL][UT] Enable Variant test suites#11726
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[GLUTEN-11550][VL][UT] Enable Variant test suites#11726baibaichen wants to merge 1 commit intoapache:mainfrom
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Enable GlutenVariantEndToEndSuite, GlutenVariantShreddingSuite, and
GlutenParquetVariantShreddingSuite for both spark40 and spark41.
Changes:
1. VeloxValidatorApi: Detect variant shredded structs produced by
Spark's PushVariantIntoScan (checking __VARIANT_METADATA_KEY
metadata) to trigger fallback to Spark's native Parquet reader.
2. ParquetMetadataUtils: Refactor to single-pass architecture.
- Extract parquetFooters() returning Iterator[Either[Exception,
ParquetMetadata]] to read each footer once.
- Merge validateVariantAnnotation into isUnsupportedMetadata
with metadataValidationEnabled parameter.
- Variant annotation check is always-on (correctness); codec,
timezone, encryption checks are gated by config.
- VeloxBackend simplified to single validateMetadata() call.
3. Spark41Shims: Add shouldFallbackForParquetVariantAnnotation to
detect Parquet variant logical type annotations. Add
needsVariantAnnotationCheck to avoid unnecessary I/O on
Spark versions that don't support variant annotations.
4. pom.xml: Add -Dfile.encoding=UTF-8 to test JVM args. On JDK 17
with LANG=C (CI containers centos-8/9), the default charset is
US-ASCII causing garbled output for multi-byte characters. JDK
18+ defaults to UTF-8 via JEP 400.
See: https://github.com/apache/spark/blob/v4.0.1/common/variant/src/main/java/org/apache/spark/types/variant/VariantUtil.java#L508
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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What changes are proposed in this pull request?
Enable
GlutenVariantEndToEndSuite,GlutenVariantShreddingSuite, andGlutenParquetVariantShreddingSuitefor both spark40 and spark41.Changes:
VeloxValidatorApi.scala: Detect variant shredded structs (produced by Spark's
PushVariantIntoScan) by checking for__VARIANT_METADATA_KEYmetadata on struct fields. Triggers fallback to Spark's native Parquet reader since Velox cannot read variant shredding encoding.ParquetMetadataUtils.scala: Refactor to single-pass architecture — extract
parquetFooters()returningIterator[Either[Exception, ParquetMetadata]]to read each footer once. MergevalidateVariantAnnotationintoisUnsupportedMetadatawithmetadataValidationEnabledparameter. Variant annotation check is always-on (correctness); codec, timezone, encryption checks are gated by config.Spark41Shims.scala: Add
shouldFallbackForParquetVariantAnnotationto detect Parquet variant logical type annotations. AddneedsVariantAnnotationCheckto avoid unnecessary I/O on Spark versions that don't support variant annotations.pom.xml: Add
-Dfile.encoding=UTF-8to test JVM args. On JDK 17 withLANG=C(CI containers centos-8/9), the default charset is US-ASCII causing garbled output for multi-byte characters. JDK 18+ defaults to UTF-8 via JEP 400. See VariantUtil.java#L508.How was this patch tested?
GlutenVariantEndToEndSuite14✅,GlutenVariantShreddingSuite8✅,GlutenParquetVariantShreddingSuite5✅GlutenVariantEndToEndSuite14✅,GlutenVariantShreddingSuite8✅,GlutenParquetVariantShreddingSuite7✅Was this patch authored or co-authored using generative AI tooling?
Generated-by: GitHub Copilot CLI
Related issue: #11550
Note: This PR subsumes #11723 (GlutenParquetVariantShreddingSuite).