danny0405 commented on code in PR #17683:
URL: https://github.com/apache/hudi/pull/17683#discussion_r2644798096
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hudi-flink-datasource/hudi-flink/src/main/java/org/apache/hudi/util/ExpressionUtils.java:
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@@ -294,6 +301,24 @@ public static Tuple2<List<ResolvedExpression>,
List<ResolvedExpression>> splitEx
}
}
+ /**
+ * Filter the filter expressions that only contain indexed columns.
+ */
+ public static List<ResolvedExpression>
filterExpressionWithIndexedCols(List<ResolvedExpression> expressions,
HoodieTableMetaClient metaClient, HoodieSchema tableSchema) {
+ if (metaClient == null) {
+ return Collections.emptyList();
+ }
+ HoodieIndexDefinition indexDefinition =
metaClient.getIndexMetadata().map(indexMeta ->
indexMeta.getIndexDefinitions().get(PARTITION_NAME_COLUMN_STATS)).orElse(null);
+ if (indexDefinition == null) {
+ return Collections.emptyList();
+ }
+ List<String> indexedCols =
HoodieTableMetadataUtil.getValidIndexedColumns(indexDefinition, tableSchema,
metaClient.getTableConfig());
+ return expressions.stream().filter(expr -> {
+ String[] refs = referencedColumns(Collections.singletonList(expr));
Review Comment:
The column name is case-sensitive right?
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