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The following commit(s) were added to refs/heads/master by this push:
new cf5e2a2eb6 [fix](nereids) new statistics use wrong default selectivity
(#14233)
cf5e2a2eb6 is described below
commit cf5e2a2eb68a91435ab4b4e18167b6df9e864ee5
Author: minghong <[email protected]>
AuthorDate: Mon Nov 14 16:09:17 2022 +0800
[fix](nereids) new statistics use wrong default selectivity (#14233)
by default, column selectivity MUST be 1.0, not ZERO
---
.../src/main/java/org/apache/doris/statistics/ColumnStatistic.java | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/statistics/ColumnStatistic.java
b/fe/fe-core/src/main/java/org/apache/doris/statistics/ColumnStatistic.java
index c8511c7867..f6236c9731 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/statistics/ColumnStatistic.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/statistics/ColumnStatistic.java
@@ -108,6 +108,7 @@ public class ColumnStatistic {
columnStatisticBuilder.setMaxValue(StatisticsUtil.convertToDouble(col.getType(),
max));
columnStatisticBuilder.setMaxExpr(StatisticsUtil.readableValue(col.getType(),
max));
columnStatisticBuilder.setMinExpr(StatisticsUtil.readableValue(col.getType(),
min));
+ columnStatisticBuilder.setSelectivity(1.0);
return columnStatisticBuilder.build();
} catch (Exception e) {
LOG.warn("Failed to deserialize column statistics, column not
exists", e);
@@ -118,7 +119,7 @@ public class ColumnStatistic {
public ColumnStatistic copy() {
return new
ColumnStatisticBuilder().setCount(count).setNdv(ndv).setAvgSizeByte(avgSizeByte)
.setNumNulls(numNulls).setDataSize(dataSize).setMinValue(minValue)
-
.setMaxValue(maxValue).setMinExpr(minExpr).setMaxExpr(maxExpr).build();
+
.setMaxValue(maxValue).setMinExpr(minExpr).setMaxExpr(maxExpr).setSelectivity(selectivity).build();
}
public ColumnStatistic multiply(double d) {
@@ -132,6 +133,7 @@ public class ColumnStatistic {
.setMaxValue(maxValue)
.setMinExpr(minExpr)
.setMaxExpr(maxExpr)
+ .setSelectivity(selectivity)
.build();
}
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