#634 #647
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#634 #647
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…rdered sets for scope/slot tracking, add stable cost tiebreaker, and cover with determinism tests.
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Since #634 popped up in the main PR I thought bring them together would make sense. |
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this should fix the non-deterministic enumeration. Main issue from my point of view was that we relied completely on plain
HashSetall over the place => the order changed every time the JVM ran, therefore a unpredictable hash-set ordering was the root cause.Wrote a regression test, too:
mvn -pl wayang-commons/wayang-core -Dtest=PlanEnumerationDeterminismTest,ChannelConversionGraphDeterminismTest test