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sfc-gh-anoyes · sfc-gh-anoyes · commit 3c4a4374dd12 · 2022-07-20T14:32:36.000-07:00
diff --git a/fdbclient/include/fdbclient/SpecialKeySpace.actor.h b/fdbclient/include/fdbclient/SpecialKeySpace.actor.h
@@ -539,6 +539,9 @@ class DataDistributionImpl : public SpecialKeyRangeRWImpl {
 	Future<Optional<std::string>> commit(ReadYourWritesTransaction* ryw) override;
 };
 
+// If the underlying set of key-value pairs of a key space is not changing, then we expect repeating a read to give the
+// same result. Additionally, we can generate the expected result of any read if that read is reading a subrange. This
+// actor performs a read of an arbitrary subrange of [begin, end) and validates the results.
 ACTOR Future<Void> validateSpecialSubrangeRead(ReadYourWritesTransaction* ryw,
                                                KeySelector begin,
                                                KeySelector end,
