weijietong commented on a change in pull request #1334: DRILL-6385: Support
JPPD feature
URL: https://github.com/apache/drill/pull/1334#discussion_r206017040
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/join/HashJoinBatch.java
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@@ -528,6 +590,27 @@ private void initializeBuild() {
}
+ private void initializeRuntimeFilter() {
+ if (!enableRuntimeFilter) {
+ return;
+ }
+ if (runtimeFilterReporter != null) {
+ return;
+ }
+ runtimeFilterReporter = new
RuntimeFilterReporter((ExecutorFragmentContext) context);
+ RuntimeFilterDef runtimeFilterDef = popConfig.getRuntimeFilterDef();
+ if (runtimeFilterDef != null) {
Review comment:
`enableRuntimeFilter` is a global option to decide whether a HashJoin could
generate RuntimeFilter. But it does not indicate the HashJoin must have a
RuntimeFilterDef. There's some preconditions defined at the
`RuntimeFilterManager` such as Left join is not allowed to use a BF to filter
data. So we can't use `Preconditions.checkState(runtimeFilterDef != null)`.
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