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[fix](Nereids) stats estimation of lessThan #28444

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This commit is contained in:
minghong
2023-12-19 15:45:03 +08:00
committed by GitHub
parent a104914880
commit 372a2e20f9
2 changed files with 8 additions and 0 deletions
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4
fe/fe-core/src/main/java/org/apache/doris/nereids/stats/FilterEstimation.java
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@ -512,6 +512,10 @@ public class FilterEstimation extends ExpressionVisitor<Statistics, EstimationCo
context.addKeyIfSlot(rightExpr);
return statistics;
}
if (leftRange.isInfinite() || rightRange.isInfinite()) {
return context.statistics.withSel(DEFAULT_INEQUALITY_COEFFICIENT);
}
double leftOverlapPercent = leftRange.overlapPercentWith(rightRange);
// Left always greater than right
if (leftOverlapPercent == 0) {

4
fe/fe-core/src/main/java/org/apache/doris/statistics/StatisticRange.java
View File

@ -239,4 +239,8 @@ public class StatisticRange {
return distinctValues;
}
@Override
public String toString() {
return "(" + lowExpr + "," + highExpr + ")";
}
}