tkalkirill commented on code in PR #1407:
URL: https://github.com/apache/ignite-3/pull/1407#discussion_r1044291694
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modules/storage-api/src/testFixtures/java/org/apache/ignite/internal/storage/index/impl/TestSortedIndexStorage.java:
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@@ -45,7 +44,9 @@
* Test implementation of MV sorted index storage.
*/
public class TestSortedIndexStorage implements SortedIndexStorage {
- private final ConcurrentNavigableMap<ByteBuffer, Set<RowId>> index;
+ private static final Object NULL = new Object();
+
+ private final ConcurrentNavigableMap<ByteBuffer, NavigableMap<RowId,
Object>> index;
Review Comment:
Main problem in `java.util.SortedSet#first` if the set is empty it will
throw an exception.
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