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Alexey Kudinkin updated HUDI-5384: ---------------------------------- Story Points: 1 (was: 2) > 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 > Labels: pull-request-available > 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 -- This message was sent by Atlassian Jira (v8.20.10#820010)