julianhyde commented on a change in pull request #1403: [CALCITE-3283]
RelSubSet's best is not existed in the set
URL: https://github.com/apache/calcite/pull/1403#discussion_r316979955
##########
File path:
core/src/main/java/org/apache/calcite/config/CalciteSystemProperty.java
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@@ -176,6 +176,14 @@
public static final CalciteSystemProperty<Boolean> TEST_SLOW =
booleanProperty("calcite.test.slow", false);
+ /**
+ * Whether to do validation within VolcanoPlanner after each rule firing.
+ * Note that doing so would significantly slow down the planning. Should only
+ * enable for unit test.
+ */
+ public static final CalciteSystemProperty<Boolean>
TEST_VALIDATE_VOLCANO_PLANNER =
+ booleanProperty("calcite.test.validate.volcano.planner", false);
Review comment:
Maybe not in this case, but validation CAN have side effects such as
ensuring that a cache or memo is populated (e.g.
`AbstractRelNode.deriveRowType()`); in production, the cache is not populated,
so the code fails.
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