[fix](nerieds) set row count to colStats if colStats.isUnknown (#37522)

apache · Jul 16, 2024 · d643e85 · d643e85
1 parent 5e35d95
commit d643e85
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/stats/StatsCalculator.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/stats/StatsCalculator.java
@@ -482,6 +482,9 @@ private Statistics computeOlapScan(LogicalOlapScan olapScan) {
         for (SlotReference slot : outputSlotReferences) {
             ColumnStatistic cache = getColumnStatsFromTableCache(olapScan, slot);
             ColumnStatisticBuilder colStatsBuilder = new ColumnStatisticBuilder(cache);
+            if (cache.isUnKnown) {
+                colStatsBuilder.setCount(rowCount);
+            }
             adjustColStats(olapScan, slot, colStatsBuilder);
             builder.putColumnStatistics(slot, colStatsBuilder.build());
             rowCount = Math.max(rowCount, colStatsBuilder.getCount());
@@ -1051,6 +1054,9 @@ private Statistics computeCatalogRelation(CatalogRelation catalogRelation) {
         for (SlotReference slot : slotSet) {
             ColumnStatistic cache = getColumnStatsFromTableCache(catalogRelation, slot);
             ColumnStatisticBuilder colStatsBuilder = new ColumnStatisticBuilder(cache);
+            if (cache.isUnKnown) {
+                colStatsBuilder.setCount(rowCount);
+            }
             adjustColStats(catalogRelation, slot, colStatsBuilder);
             rowCount = Math.max(rowCount, colStatsBuilder.getCount());
             builder.putColumnStatistics(slot, colStatsBuilder.build());