aiborodin commented on code in PR #13340:
URL: https://github.com/apache/iceberg/pull/13340#discussion_r2160976771
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flink/v2.0/flink/src/main/java/org/apache/iceberg/flink/sink/dynamic/TableMetadataCache.java:
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@@ -220,37 +238,59 @@ SchemaInfo getSchemaInfo() {
*/
static class SchemaInfo {
private final Map<Integer, Schema> schemas;
- private final Map<Schema, Tuple2<Schema, CompareSchemasVisitor.Result>>
lastResults;
+ private final Cache<Schema, SchemaCompareInfo> lastResults;
Review Comment:
I haven't profiled this cache, but it seems to be used frequently in other
places, including the dynamic sink. Also, results of [this
benchmark](https://github.com/ben-manes/caffeine/wiki/benchmarks#read-75--write-25-1)
look promising.
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