[KERNEL] Extend getStatsSchema to include collated stats
#5416
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stefankandic
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Oct 30, 2025
kernel/kernel-api/src/main/java/io/delta/kernel/internal/skipping/DataSkippingPredicate.java
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kernel/kernel-api/src/main/java/io/delta/kernel/internal/skipping/StatsSchemaHelper.java
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allisonport-db
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A lot simpler thank you! Just a few comments + a question
kernel/kernel-api/src/main/java/io/delta/kernel/internal/skipping/DataSkippingPredicate.java
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kernel/kernel-api/src/main/java/io/delta/kernel/internal/skipping/DataSkippingPredicate.java
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kernel/kernel-api/src/main/java/io/delta/kernel/internal/skipping/StatsSchemaHelper.java
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kernel/kernel-api/src/test/scala/io/delta/kernel/internal/skipping/StatsSchemaHelperSuite.scala
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Which Delta project/connector is this regarding?
Description
In this PR,
getStatsSchemais extended to include the collated stats schema for any collation referenced byDataSkippingPredicate(schema example). Also, added E2E tests for collated data skipping.This PR is an extension of https://github.com/delta-io/delta/pull/5380.
How was this patch tested?
New tests.
Does this PR introduce any user-facing changes?
No.