vvysotskyi commented on a change in pull request #1752: DRILL-7182: Incorrect
access specifier for Join DrillRelMdDistinctRowcount
URL: https://github.com/apache/drill/pull/1752#discussion_r276128478
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File path:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillRelMdDistinctRowCount.java
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@@ -92,7 +92,7 @@ public Double getDistinctRowCount(RelNode rel,
RelMetadataQuery mq, ImmutableBit
if (rel instanceof DrillScanRel) {
// The existing Drill behavior is to only use this estimation for
DrillScanRel and not ScanPrel.
// TODO: We may potentially do it for ScanPrel (outside the scope of
statistics)
- return rel.estimateRowCount(mq) * 0.1;
+ return ((DrillScanRel)rel).estimateRowCount(mq) * 0.1;
Review comment:
This cast is not needed, please revert this change.
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