amansinha100 commented on a change in pull request #1466: DRILL-6381: Add
support for index based planning and execution
URL: https://github.com/apache/drill/pull/1466#discussion_r225740876
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File path:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillMergeProjectRule.java
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@@ -166,4 +169,25 @@ public void onMatch(RelOptRuleCall call) {
return list;
}
+ public static Project replace(Project topProject, Project bottomProject) {
Review comment:
They can be merged into the top level Project that allows
duplicates...however, the purpose of the `replace()` method here is to simply
allow the caller to replace a project with another with the assumption that
callers know exactly what they are doing. This is not applying the full
fledged `DrillMergeProjectRule`.
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