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Original file line number Diff line number Diff line change
Expand Up @@ -96,26 +96,26 @@ SELECT count_substrings('a,b,c,abcde', '');

6. Using the start position parameter
```sql
SELECT count_substrings('你好,世界!你好,世界!', '世界', 1),
count_substrings('你好,世界!你好,世界!', '世界', 6);
SELECT count_substrings('ṭṛì ḍḍumai ṭṛì ti ḍḍumannàri', 'ḍḍu', 1),
count_substrings('ṭṛì ḍḍumai ṭṛì ti ḍḍumannàri', 'ḍḍu', 6);
```
```text
+-----------------------------------------------------------------------+-----------------------------------------------------------------------+
| count_substrings('你好,世界!你好,世界!', '世界', 1) | count_substrings('你好,世界!你好,世界!', '世界', 6) |
+-----------------------------------------------------------------------+-----------------------------------------------------------------------+
| 2 | 1 |
+-----------------------------------------------------------------------+-----------------------------------------------------------------------+
+-----------------------------------------------------------------------------------+-----------------------------------------------------------------------------------+
| count_substrings('ṭṛì ḍḍumai ṭṛì ti ḍḍumannàri', 'ḍḍu', 1) | count_substrings('ṭṛì ḍḍumai ṭṛì ti ḍḍumannàri', 'ḍḍu', 6) |
+-----------------------------------------------------------------------------------+-----------------------------------------------------------------------------------+
| 2 | 1 |
+-----------------------------------------------------------------------------------+-----------------------------------------------------------------------------------+
```

7. Start position out of range
```sql
SELECT count_substrings('你好,世界!你好,世界!', '世界', 0),
count_substrings('你好,世界!你好,世界!', '世界', 30);
SELECT count_substrings('éèêëìíîïðñòó éèêëìíîïðñòó', 'éèê', 0),
count_substrings('éèêëìíîïðñòó éèêëìíîïðñòó', 'éèê', 30);
```
```text
+-----------------------------------------------------------------------+------------------------------------------------------------------------+
| count_substrings('你好,世界!你好,世界!', '世界', 0) | count_substrings('你好,世界!你好,世界!', '世界', 30) |
+-----------------------------------------------------------------------+------------------------------------------------------------------------+
| 0 | 0 |
+-----------------------------------------------------------------------+------------------------------------------------------------------------+
+------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------+
| count_substrings('éèêëìíîïðñòó éèêëìíîïðñòó', 'éèê', 0) | count_substrings('éèêëìíîïðñòó éèêëìíîïðñòó', 'éèê', 30) |
+------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------+
| 0 | 0 |
+------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------+
```
Original file line number Diff line number Diff line change
Expand Up @@ -96,26 +96,26 @@ SELECT count_substrings('a,b,c,abcde', '');

6. 使用起始位置参数
```sql
SELECT count_substrings('你好,世界!你好,世界!', '世界', 1),
count_substrings('你好,世界!你好,世界!', '世界', 6);
SELECT count_substrings('ṭṛì ḍḍumai ṭṛì ti ḍḍumannàri', 'ḍḍu', 1),
count_substrings('ṭṛì ḍḍumai ṭṛì ti ḍḍumannàri', 'ḍḍu', 6);
```
```text
+-----------------------------------------------------------------------+-----------------------------------------------------------------------+
| count_substrings('你好,世界!你好,世界!', '世界', 1) | count_substrings('你好,世界!你好,世界!', '世界', 6) |
+-----------------------------------------------------------------------+-----------------------------------------------------------------------+
| 2 | 1 |
+-----------------------------------------------------------------------+-----------------------------------------------------------------------+
+-----------------------------------------------------------------------------------+-----------------------------------------------------------------------------------+
| count_substrings('ṭṛì ḍḍumai ṭṛì ti ḍḍumannàri', 'ḍḍu', 1) | count_substrings('ṭṛì ḍḍumai ṭṛì ti ḍḍumannàri', 'ḍḍu', 6) |
+-----------------------------------------------------------------------------------+-----------------------------------------------------------------------------------+
| 2 | 1 |
+-----------------------------------------------------------------------------------+-----------------------------------------------------------------------------------+
```

7. 起始位置超出范围
```sql
SELECT count_substrings('你好,世界!你好,世界!', '世界', 0),
count_substrings('你好,世界!你好,世界!', '世界', 30);
SELECT count_substrings('éèêëìíîïðñòó éèêëìíîïðñòó', 'éèê', 0),
count_substrings('éèêëìíîïðñòó éèêëìíîïðñòó', 'éèê', 30);
```
```text
+-----------------------------------------------------------------------+------------------------------------------------------------------------+
| count_substrings('你好,世界!你好,世界!', '世界', 0) | count_substrings('你好,世界!你好,世界!', '世界', 30) |
+-----------------------------------------------------------------------+------------------------------------------------------------------------+
| 0 | 0 |
+-----------------------------------------------------------------------+------------------------------------------------------------------------+
+------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------+
| count_substrings('éèêëìíîïðñòó éèêëìíîïðñòó', 'éèê', 0) | count_substrings('éèêëìíîïðñòó éèêëìíîïðñòó', 'éèê', 30) |
+------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------+
| 0 | 0 |
+------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------+
```