From 9d997b934919418b9a7a1af0adacc8e809d77ef4 Mon Sep 17 00:00:00 2001
From: AKIRA <33112463+Kikyou1997@users.noreply.github.com>
Date: Tue, 4 Jul 2023 19:02:15 +0900
Subject: [PATCH] [revert](nereids) Revert data size agg (#21216)

To make stats derivation more precise
---
 .../java/org/apache/doris/statistics/BaseAnalysisTask.java   | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/statistics/BaseAnalysisTask.java b/fe/fe-core/src/main/java/org/apache/doris/statistics/BaseAnalysisTask.java
index a1a52c0a11..7197fc4442 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/statistics/BaseAnalysisTask.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/statistics/BaseAnalysisTask.java
@@ -182,7 +182,10 @@ public abstract class BaseAnalysisTask {
 
     // TODO : time cost is intolerable when column is string type, return 0 directly for now.
     protected String getDataSizeFunction(Column column) {
-        return "0";
+        if (column.getType().isStringType()) {
+            return "SUM(LENGTH(`${colName}`))";
+        }
+        return "COUNT(1) * " + column.getType().getSlotSize();
     }
 
     private boolean isUnsupportedType(PrimitiveType type) {