split_part with empty delimiter behaves like postgres in FB 2.0

docs/sql_reference/functions-reference/string/split-part.md

@@ -9,7 +9,7 @@ great_grand_parent: SQL reference
 
 # SPLIT_PART
 
-Divides a string based on a specified delimiter into an array of substrings. The string in the specified index is returned, with `1` being the first index. If the string separator is empty, the string is divided into an array of single characters.
+Divides a string based on a specified delimiter into an array of substrings. The string in the specified index is returned, with `1` being the first index. If the string separator is empty, the string is returned at index `1`.
 
 ## Syntax
 {: .no_toc}
@@ -27,7 +27,7 @@ Please note that the order of the arguments is different than the [`SPLIT` funct
 | Parameter       | Description                      | Supported input types    | 
 | :---------------| :--------------------------------|:---------------------------- |
 | `<string>`    | An expression evaluating to a string to be split. | `TEXT` |
-| `<delimiter>` | Any character or substring within `<string>`. If `<delimiter>` is an empty string `''`, the `<string>` will be divided into single characters. | 	`TEXT` |
+| `<delimiter>` | Any character or substring within `<string>`. If `<delimiter>` is an empty string `''`, the `<string>` will be returned at index `1`. | 	`TEXT` |
 | `<index>`     | The index from which to return the substring.    | `INTEGER` |
 
 ## Return Type
@@ -50,9 +50,16 @@ SELECT
 
 **Returns**: `test`
 
+```sql
+SELECT
+	SPLIT_PART('hello world', '', 1 ) AS res;
+```
+
+**Returns**: `hello world`
+
 ```sql
 SELECT
 	SPLIT_PART('hello world', '', 7 ) AS res;
 ```
 
-**Returns**: `w`
+**Returns**: ``