morrySnow commented on code in PR #10647:
URL: https://github.com/apache/doris/pull/10647#discussion_r914581350
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fe/fe-core/src/main/java/org/apache/doris/planner/OlapScanNode.java:
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@@ -693,6 +708,37 @@ private void computeTabletInfo() throws UserException {
}
}
+ /**
+ * Check Parent sort node can push down to child olap scan.
Review Comment:
add more comment to explain why use prefix matching
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fe/fe-core/src/main/java/org/apache/doris/planner/OriginalPlanner.java:
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@@ -197,6 +197,28 @@ public void createPlanFragments(StatementBase statement,
Analyzer analyzer, TQue
fragments = distributedPlanner.createPlanFragments(singleNodePlan);
}
+ // Push sort node down to the bottom of olapscan.
+ for (PlanFragment fragment : fragments) {
+ if (fragment.getPlanRoot() instanceof SortNode) {
Review Comment:
we need to find a pattern sort(scan), so should use recursive way to do that
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