diff --git a/docs/en/14-reference/01-components/02-taosc.md b/docs/en/14-reference/01-components/02-taosc.md
index 7b8d3ae78c..83cb3d765b 100644
--- a/docs/en/14-reference/01-components/02-taosc.md
+++ b/docs/en/14-reference/01-components/02-taosc.md
@@ -44,6 +44,7 @@ The TDengine client driver provides all the APIs needed for application programm
 |enableQueryHb                    |         |Supported, effective immediately  |Internal parameter, whether to send query heartbeat messages|
 |minSlidingTime                   |         |Supported, effective immediately  |Internal parameter, minimum allowable value for sliding|
 |minIntervalTime                  |         |Supported, effective immediately  |Internal parameter, minimum allowable value for interval|
+|compareAsStrInGreatest           | v3.3.6.0 |Supported, effective immediately  |When the greatest and least functions have both numeric and string types as parameters, the comparison type conversion rules are as follows: Integer; 1: uniformly converted to string comparison, 0: uniformly converted to numeric type comparison.|
 
 ### Writing Related
 
diff --git a/docs/zh/14-reference/01-components/02-taosc.md b/docs/zh/14-reference/01-components/02-taosc.md
index 262027bff6..8952e35664 100755
--- a/docs/zh/14-reference/01-components/02-taosc.md
+++ b/docs/zh/14-reference/01-components/02-taosc.md
@@ -221,6 +221,12 @@ TDengine 客户端驱动提供了应用编程所需要的全部 API，并且在
 - 动态修改：不支持
 - 支持版本：从 v3.0.0.0 版本开始引入
 
+#### compareAsStrInGreatest
+- 说明：用于决定 greatest、least 函数的参数既有数值类型又有字符串类型时，比较类型的转换规则。
+- 类型：整数；1：统一转为字符串比较，0：统一转为数值类型比较。
+- 动态修改：支持通过 SQL 修改，立即生效
+- 支持版本：从 v3.3.6.0 版本开始引入
+
 ### 写入相关
 
 #### smlChildTableName
diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 34ff535486..8233b2d450 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -1778,7 +1778,7 @@ static int32_t translateGreatestleast(SFunctionNode* pFunc, char* pErrBuf, int32
       } else if (IS_MATHABLE_TYPE(res.type) || !mixTypeToStrings) {
         int32_t resType = vectorGetConvertType(res.type, para->type);
         res.type = resType == 0 ? res.type : resType;
-        res.bytes = tDataTypes[resType].bytes;
+        res.bytes = tDataTypes[res.type].bytes;
       } else {
         // last res is strings, para is numeric and mixTypeToStrings is true
         res.bytes = TMAX(res.bytes, NUMERIC_TO_STRINGS_LEN);