korlov42 commented on a change in pull request #8544:
URL: https://github.com/apache/ignite/pull/8544#discussion_r543200770
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File path:
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/rel/AbstractIgniteNestedLoopJoin.java
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@@ -391,11 +322,17 @@ else if (joinType == RIGHT || joinType ==
JoinRelType.FULL) {
if (Double.isInfinite(rightRowCount))
rowCount = rightRowCount;
+ if (!Double.isInfinite(leftRowCount) &&
!Double.isInfinite(rightRowCount) && leftRowCount > rightRowCount)
+ rowCount = RelMdUtil.addEpsilon(rowCount);
+
RelDistribution.Type type = distribution().getType();
- if (type == BROADCAST_DISTRIBUTED || type == SINGLETON)
+ if (type == SINGLETON)
rowCount = RelMdUtil.addEpsilon(rowCount);
+ if (type == BROADCAST_DISTRIBUTED)
+ rowCount = RelMdUtil.addEpsilon(RelMdUtil.addEpsilon(rowCount));
Review comment:
broadcast distribution should be more expensive since it duplicates the
row for every node
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