diff --git a/be/src/vec/common/string_ref.h b/be/src/vec/common/string_ref.h
index ebc4dcc88d..8f83d072ad 100644
--- a/be/src/vec/common/string_ref.h
+++ b/be/src/vec/common/string_ref.h
@@ -55,6 +55,9 @@ struct StringRef {
     std::string to_string() const { return std::string(data, size); }
     std::string_view to_string_view() const { return std::string_view(data, size); }
 
+    // this is just for show, eg. print data to error log, to avoid print large string.
+    std::string to_prefix(size_t length) const { return std::string(data, std::min(length, size)); }
+
     explicit operator std::string() const { return to_string(); }
 
     StringVal to_string_val() {
diff --git a/be/src/vec/sink/vtablet_sink.cpp b/be/src/vec/sink/vtablet_sink.cpp
index 0ce0cf7663..d1a62f4ae7 100644
--- a/be/src/vec/sink/vtablet_sink.cpp
+++ b/be/src/vec/sink/vtablet_sink.cpp
@@ -216,7 +216,7 @@ Status VOlapTableSink::_validate_data(RuntimeState* state, vectorized::Block* bl
                             fmt::format_to(error_msg, "{}",
                                            "the length of input is too long than schema. ");
                             fmt::format_to(error_msg, "column_name: {}; ", desc->col_name());
-                            fmt::format_to(error_msg, "input str: [{}] ", str_val.to_string());
+                            fmt::format_to(error_msg, "input str: [{}] ", str_val.to_prefix(10));
                             fmt::format_to(error_msg, "schema length: {}; ", desc->type().len);
                             fmt::format_to(error_msg, "actual length: {}; ", str_val.size);
                         } else if (str_val.size > MAX_SIZE_OF_VEC_STRING) {
@@ -224,9 +224,9 @@ Status VOlapTableSink::_validate_data(RuntimeState* state, vectorized::Block* bl
                                     error_msg, "{}",
                                     "the length of input string is too long than vec schema. ");
                             fmt::format_to(error_msg, "column_name: {}; ", desc->col_name());
-                            fmt::format_to(error_msg, "input str: [{}] ", str_val.to_string());
-                            fmt::format_to(error_msg, "schema length: {}; ",
-                                           MAX_SIZE_OF_VEC_STRING);
+                            fmt::format_to(error_msg, "input str: [{}] ", str_val.to_prefix(10));
+                            fmt::format_to(error_msg, "schema length: {}; ", desc->type().len);
+                            fmt::format_to(error_msg, "limit length: {}; ", MAX_SIZE_OF_VEC_STRING);
                             fmt::format_to(error_msg, "actual length: {}; ", str_val.size);
                         }
 
diff --git a/docs/.vuepress/sidebar/en.js b/docs/.vuepress/sidebar/en.js
index 628022ef38..8cca1c5b84 100644
--- a/docs/.vuepress/sidebar/en.js
+++ b/docs/.vuepress/sidebar/en.js
@@ -367,7 +367,6 @@ module.exports = [
               "ascii",
               "bit_length",
               "char_length",
-              "coalesce",
               "concat",
               "concat_ws",
               "ends_with",
diff --git a/docs/.vuepress/sidebar/zh-CN.js b/docs/.vuepress/sidebar/zh-CN.js
index 886abe7808..3fd8f69003 100644
--- a/docs/.vuepress/sidebar/zh-CN.js
+++ b/docs/.vuepress/sidebar/zh-CN.js
@@ -369,7 +369,6 @@ module.exports = [
               "ascii",
               "bit_length",
               "char_length",
-              "coalesce",
               "concat",
               "concat_ws",
               "ends_with",
diff --git a/docs/en/sql-reference/sql-functions/string-functions/coalesce.md b/docs/en/sql-reference/sql-functions/string-functions/coalesce.md
deleted file mode 100644
index 23fef73f49..0000000000
--- a/docs/en/sql-reference/sql-functions/string-functions/coalesce.md
+++ /dev/null
@@ -1,62 +0,0 @@
----
-{
-    "title": "coalesce",
-    "language": "en"
-}
----
-
-<!-- 
-Licensed to the Apache Software Foundation (ASF) under one
-or more contributor license agreements.  See the NOTICE file
-distributed with this work for additional information
-regarding copyright ownership.  The ASF licenses this file
-to you under the Apache License, Version 2.0 (the
-"License"); you may not use this file except in compliance
-with the License.  You may obtain a copy of the License at
-
-  http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing,
-software distributed under the License is distributed on an
-"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, either express or implied.  See the License for the
-specific language governing permissions and limitations
-under the License.
--->
-
-# coalesce
-## Description
-### Syntax
-
-`VARCHAR coalesce(VARCHAR, ...)`
-`...`
-`INT coalesce(INT, ...)`
-
-` coalesce ` function will return the first not null value. If it's all value is null, return null
-
-## example
-
-```
-MySQL> select coalesce(1,null,2);
-+----------------------+
-| coalesce(1, NULL, 2) |
-+----------------------+
-|                    1 |
-+----------------------+
-
-MySQL> select coalesce(null,"asd",1);
-+--------------------------+
-| coalesce(NULL, 'asd', 1) |
-+--------------------------+
-| asd                      |
-+--------------------------+
-
-MySQL> select coalesce(null,null,null);
-+----------------------------+
-| coalesce(NULL, NULL, NULL) |
-+----------------------------+
-|                       NULL |
-+----------------------------+
-```
-## keyword
-coalesce
diff --git a/docs/zh-CN/sql-reference/sql-functions/conditional-functions/coalesce.md b/docs/zh-CN/sql-reference/sql-functions/conditional-functions/coalesce.md
index ebca147a3a..5e55515f9a 100644
--- a/docs/zh-CN/sql-reference/sql-functions/conditional-functions/coalesce.md
+++ b/docs/zh-CN/sql-reference/sql-functions/conditional-functions/coalesce.md
@@ -30,7 +30,6 @@ under the License.
 
 `coalesce(expr1, expr2, ...., expr_n))`
 
-
 返回参数中的第一个非空表达式（从左向右）
 
 ## example
@@ -44,4 +43,5 @@ mysql> select coalesce(NULL, '1111', '0000');
 +--------------------------------+
 ```
 ## keyword
-COALESCE
+
+    COALESCE
diff --git a/docs/zh-CN/sql-reference/sql-functions/string-functions/coalesce.md b/docs/zh-CN/sql-reference/sql-functions/string-functions/coalesce.md
deleted file mode 100644
index 0ea6c2a22e..0000000000
--- a/docs/zh-CN/sql-reference/sql-functions/string-functions/coalesce.md
+++ /dev/null
@@ -1,63 +0,0 @@
----
-{
-    "title": "coalesce",
-    "language": "zh-CN"
-}
----
-
-<!-- 
-Licensed to the Apache Software Foundation (ASF) under one
-or more contributor license agreements.  See the NOTICE file
-distributed with this work for additional information
-regarding copyright ownership.  The ASF licenses this file
-to you under the Apache License, Version 2.0 (the
-"License"); you may not use this file except in compliance
-with the License.  You may obtain a copy of the License at
-
-  http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing,
-software distributed under the License is distributed on an
-"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, either express or implied.  See the License for the
-specific language governing permissions and limitations
-under the License.
--->
-
-# coalesce
-## description
-### Syntax
-
-`VARCHAR coalesce(VARCHAR, ...)`
-`...`
-`INT coalesce(INT, ...)`
-
-`coalesce`函数会返回第一个非NULL的值，若全部为NULL，则返回NULL
-
-## example
-
-```
-MySQL> select coalesce(1,null,2);
-+----------------------+
-| coalesce(1, NULL, 2) |
-+----------------------+
-|                    1 |
-+----------------------+
-
-MySQL> select coalesce(null,"asd",1);
-+--------------------------+
-| coalesce(NULL, 'asd', 1) |
-+--------------------------+
-| asd                      |
-+--------------------------+
-
-MySQL> select coalesce(null,null,null);
-+----------------------------+
-| coalesce(NULL, NULL, NULL) |
-+----------------------------+
-|                       NULL |
-+----------------------------+
-
-```
-## keyword
-coalesce
diff --git a/fe/fe-core/src/main/java/org/apache/doris/analysis/CreateFunctionStmt.java b/fe/fe-core/src/main/java/org/apache/doris/analysis/CreateFunctionStmt.java
index 6a5c18de9e..743fb219dd 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/analysis/CreateFunctionStmt.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/analysis/CreateFunctionStmt.java
@@ -190,7 +190,7 @@ public class CreateFunctionStmt extends DdlStmt {
             try {
                 computeObjectChecksum();
             } catch (IOException | NoSuchAlgorithmException e) {
-                throw new AnalysisException("cannot to compute object's checksum");
+                throw new AnalysisException("cannot to compute object's checksum. err: " + e.getMessage());
             }
             String md5sum = properties.get(MD5_CHECKSUM);
             if (md5sum != null && !md5sum.equalsIgnoreCase(checksum)) {