[TD-848] <docs>: fix description about SPREAD return type.

2021-07-23 18:44:14 +08:00 · 2021-07-23 18:44:14 +08:00 · afaf7d6a13
parent 1bd30d4572
commit afaf7d6a13
1 changed files with 1 additions and 1 deletions
--- 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.