zhangstar333 commented on code in PR #13741:
URL: https://github.com/apache/doris/pull/13741#discussion_r1041689486
##########
docs/zh-CN/docs/sql-manual/sql-functions/string-functions/split_by_string.md:
##########
@@ -0,0 +1,94 @@
+---
+{
+ "title": "split_by_string",
+ "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.
+-->
+
+## split_by_string
+
+### description
+
+#### Syntax
+
+```
+split_by_string(s, separator)
+```
+将字符串拆分为由字符串分隔的子字符串。它使用多个字符的常量字符串分隔符作为分隔符。如果字符串分隔符为空，它将字符串拆分为单个字符数组。
+
+#### Arguments
+
+`separator` — 分隔符是一个字符串，是用来分割的标志字符. 类型: `String`
+
+`s` — 需要分割的字符串. 类型: `String`
+
+#### Returned value(s)
+
+返回一个包含子字符串的数组. 以下情况会返回空的子字符串:
+
+需要分割的字符串的首尾是分隔符;
+
+多个分隔符连续出现;
+
+需要分割的字符串为空，而分隔符不为空.
+
+Type: `Array(String)`
+
+### notice
+
+`Only supported in vectorized engine`
+
+### example
+
+```
+SELECT split_by_string('1, 2 3, 4,5, abcde', ', ');
++---------------------------------------------+
+| split_by_string('1, 2 3, 4,5, abcde', ', ') |
++---------------------------------------------+
+| ['1', '2 3', '4,5', 'abcde'] |
++---------------------------------------------+
+SELECT split_by_string('abcde','');
++--------------------------------+
+| split_by_string('1,2,3,', ',') |
++--------------------------------+
+| ['a', 'b', 'c', 'd', 'e'] |
++--------------------------------+
+SELECT split_by_string(NULL,',');
++----------------------------+
+| split_by_string(NULL, ',') |
++----------------------------+
+| NULL |
++----------------------------+
+SELECT split_by_string('1, 2 3, , , 4,5, abcde', ', ');
++-------------------------------------------------+
+| split_by_string('1, 2 3, , , 4,5, abcde', ', ') |
++-------------------------------------------------+
+| ['1', '2 3', '', '', '4,5'] |
++-------------------------------------------------+
Review Comment:
this case result is not contains 'abcde'?
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