perf: Improving data skipping with column stats when there exist colu… #17683
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…mns without column stats
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danny0405
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Dec 24, 2025
| } | ||
| List<String> indexedCols = HoodieTableMetadataUtil.getValidIndexedColumns(indexDefinition, tableSchema, metaClient.getTableConfig()); | ||
| return expressions.stream().filter(expr -> { | ||
| String[] refs = referencedColumns(Collections.singletonList(expr)); |
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The column name is case-sensitive right?
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yes, column name is case-sensitive for flink default sql dialect, and there is no config to change the behavior now.
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…mns without column stats
Describe the issue this Pull Request addresses
Improving data skipping with column stats when there exist columns without column stats, fixes #17598
Summary and Changelog
ColumnStatsProbewith filtered predicates that contain columns with column stats index.HoodieFlinkIndexClientto support persist column stats index definition for flink write client.Impact
Improve batch query performance for flink reader when column stats is enabled.
Risk Level
low.
Documentation Update
Contributor's checklist