Merge pull request #7967 from godfreyd/en-docs/CLICKHOUSEDOCS-452

Docs for javaHashUTF16LE function

docs/en/query_language/functions/hash_functions.md

@@ -179,6 +179,8 @@ SELECT farmHash64(array('e','x','a'), 'mple', 10, toDateTime('2019-06-15 23:00:0
 
 Calculates [JavaHash](http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/file/478a4add975b/src/share/classes/java/lang/String.java#l1452) from a string. This hash function is neither fast nor having a good quality. The only reason to use it is when this algorithm is already used in another system and you have to calculate exactly the same result.
 
+**Syntax** 
+
 ```sql
 SELECT javaHash('');
 ```
@@ -187,8 +189,6 @@ SELECT javaHash('');
 
 A `Int32` data type hash value.
 
-Type: `javaHash`.
-
 **Example**
 
 Query:
@@ -205,15 +205,40 @@ Result:
 └───────────────────────────┘
 ```
 
-## javaHashUTF16LE
+## javaHashUTF16LE {#javahashutf16le}
 
-The same as [JavaHash](#hash_functions-javahash), but for UTF-16LE code points. Works under the assumption that the string contains a set of bytes representing a UTF-16LE encoded text. If this assumption is not met, it returns some result (It only throws an exception in partial cases).
+Calculates [JavaHash](http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/file/478a4add975b/src/share/classes/java/lang/String.java#l1452) from a string, assuming it contains bytes representing a string in UTF-16LE encoding.
 
+**Syntax** 
+
+```sql
+javaHashUTF16LE(stringUtf16le)
+```
+
+**Parameters** 
+
+- `stringUtf16le` —  a string in UTF-16LE encoding.
+
+**Returned value**
+
+A `Int32` data type hash value.
 
 **Example**
 
+Correct query with UTF-16LE encoded string.
+
+Query:
+
 ```sql
-SELECT javaHashUTF16LE(convertCharset('Hello, world!', 'utf-8', 'utf-16le'))
+SELECT javaHashUTF16LE(convertCharset('test', 'utf-8', 'utf-16le'))
+```
+
+Result:
+
+```text
+┌─javaHashUTF16LE(convertCharset('test', 'utf-8', 'utf-16le'))─┐
+│                                                      3556498 │
+└──────────────────────────────────────────────────────────────┘
 ```
 
 ## hiveHash {#hash_functions-hivehash}

docs/ru/query_language/functions/hash_functions.md

@@ -207,6 +207,44 @@ SELECT javaHash('Hello, world!');
 └───────────────────────────┘
 ```
 
+## javaHashUTF16LE {#javahashutf16le}
+
+Вычисляет [JavaHash](http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/file/478a4add975b/src/share/classes/java/lang/String.java#l1452) от строки, при допущении, что строка представлена в кодировке `UTF-16LE`.
+
+**Синтаксис** 
+
+```sql
+javaHashUTF16LE(stringUtf16le)
+```
+
+**Параметры**
+
+- `stringUtf16le` —  строка в  `UTF-16LE`.
+
+**Возвращаемое значение**
+
+Хэш-значение типа `Int32`.
+
+Тип: `javaHash`.
+
+**Пример**
+
+Верный запрос для строки кодированной в `UTF-16LE`.
+
+Запрос:
+
+```sql
+SELECT javaHashUTF16LE(convertCharset('test', 'utf-8', 'utf-16le'))
+```
+
+Ответ:
+
+```text
+┌─javaHashUTF16LE(convertCharset('test', 'utf-8', 'utf-16le'))─┐
+│                                                      3556498 │
+└──────────────────────────────────────────────────────────────┘
+```
+
 ## hiveHash {#hash_functions-hivehash}
 
 Вычисляет `HiveHash` от строки.