Github user julianhyde commented on a diff in the pull request:
https://github.com/apache/drill/pull/169#discussion_r40446899
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillLimitRelBase.java
---
@@ -36,11 +36,17 @@
public abstract class DrillLimitRelBase extends SingleRel implements
DrillRelNode {
protected RexNode offset;
protected RexNode fetch;
+ private boolean pushDown; // whether limit has been push past its child.
--- End diff --
Actually sort and aggregate have some of this behavior too. You can do a
partial sort or partial aggregate in the children but then you need to combine.
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