From afaf7d6a13f2caf90ad407be62db18ef2cad519b Mon Sep 17 00:00:00 2001
From: Elias Soong <elias.soong@gmail.com>
Date: Fri, 23 Jul 2021 18:44:14 +0800
Subject: [PATCH] [TD-848] <docs>: fix description about SPREAD return type.

---
 documentation20/en/12.taos-sql/docs.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/documentation20/en/12.taos-sql/docs.md b/documentation20/en/12.taos-sql/docs.md
index f215084392..2f344b4529 100644
--- a/documentation20/en/12.taos-sql/docs.md
+++ b/documentation20/en/12.taos-sql/docs.md
@@ -1132,7 +1132,7 @@ TDengine supports aggregations over data, they are listed below:
     ```
     Function: Return the difference between the max value and the min value of a column in statistics /STable.
     
-    Return Data Type: Same as applicable fields.
+    Return Data Type: Double.
     
     Applicable Fields: All types except binary, nchar, bool.
     
-- 
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