Kikyou1997 commented on code in PR #11179:
URL: https://github.com/apache/doris/pull/11179#discussion_r929582472
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fe/fe-core/src/main/java/org/apache/doris/statistics/ColumnStats.java:
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@@ -76,6 +76,22 @@ public class ColumnStats {
private LiteralExpr minValue;
private LiteralExpr maxValue;
+ public ColumnStats(ColumnStats other) {
+ this.ndv = other.ndv;
+ this.avgSize = other.avgSize;
+ this.maxSize = other.maxSize;
+ this.numNulls = other.numNulls;
+ if (other.minValue != null) {
+ this.minValue = (LiteralExpr) other.minValue.clone();
Review Comment:
To avoid coder change the child's stats unexpectedly when writing the stats
logic for other internal node of the plan tree.
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