[opt](nereids) refine operator estimation

xzj7019 · Sep 23, 2024 · 61a9a33 · 61a9a33
1 parent 3c49f26
commit 61a9a33
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/stats/FilterEstimation.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/stats/FilterEstimation.java
@@ -671,9 +671,10 @@ private Statistics estimateColumnEqualToColumn(Expression leftExpr, ColumnStatis
         double numNull = keepNull ? Math.min(leftStats.numNulls, rightStats.numNulls) : 0;
         intersectBuilder.setNumNulls(numNull);
 
-        double origRowCount = context.statistics.getRowCount();
-        double leftNotNullSel = Statistics.getValidSelectivity(1 - (leftStats.numNulls / origRowCount));
-        double rightNotNullSel = Statistics.getValidSelectivity(1 - (rightStats.numNulls / origRowCount));
+        // TODO: consider notNullSelectivity
+        //double origRowCount = context.statistics.getRowCount();
+        double leftNotNullSel = 1.0; //Statistics.getValidSelectivity(1 - (leftStats.numNulls / origRowCount));
+        double rightNotNullSel = 1.0; //Statistics.getValidSelectivity(1 - (rightStats.numNulls / origRowCount));
         double notNullSel = 1 / StatsMathUtil.nonZeroDivisor(Math.max(leftStats.ndv, rightStats.ndv))
                 * (keepNull ? 1 : leftNotNullSel * rightNotNullSel);