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https://issues.apache.org/jira/browse/HUDI-5384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Kudinkin updated HUDI-5384:
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Sprint: 2022/12/12
> Make sure predicates are appropriately pushed down to HoodieFileIndex when
> lazy listing
> ---------------------------------------------------------------------------------------
>
> Key: HUDI-5384
> URL: https://issues.apache.org/jira/browse/HUDI-5384
> Project: Apache Hudi
> Issue Type: Bug
> Components: spark, spark-sql
> Affects Versions: 0.13.0
> Reporter: Alexey Kudinkin
> Assignee: Alexey Kudinkin
> Priority: Blocker
> Fix For: 0.13.0
>
>
> After introduction of lazy-listing capability in HUDI-4812, it exposed an
> issue in Spark's design, where predicates are pushed-down into generic
> FileIndex implementations only during the execution phase.
> This poses following issues:
> # HoodieFileIndex isn't listing the table until `listFiles` method is invoked
> # Listing would actually be performed only during actual execution in
> `FileSourceScanExac` node
> # Since listing isn't performed until the actual execution, table statistics
> are initialized w/ bogus values (of 1 byte) and Cost-based Optimizations
> (CBO) will be taking incorrect decisions based on that
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