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[doc](fucntion) add some doc about regexp_replace flag #2441

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[doc](fucntion) add some doc about regexp_replace flag
zhangstar333 Jun 5, 2025
90994fa
update 3.0
zhangstar333 Jun 5, 2025
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17 changes: 16 additions & 1 deletion docs/sql-manual/sql-functions/scalar-functions/string-functions/regexp-replace.md
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ Regular matching of STR strings, replacing the part hitting pattern with a new s
## Syntax

```sql
REGEXP_REPLACE(<str>, <pattern>, <repl>)
REGEXP_REPLACE(<str>, <pattern>, <repl>, [flag])
```

## Parameters
Expand All @@ -43,6 +43,7 @@ REGEXP_REPLACE(<str>, <pattern>, <repl>)
| `<str>` | The column need to do regular matching.|
| `<pattern>` | Target pattern.|
| `<repl>` | The string to replace the matched pattern.|
| [flag] | Optional parameter used to specify whether to allow ignoring invalid escape characters. For example, `\{` is equivalent to `{` |

## Return Value

Expand Down Expand Up @@ -71,4 +72,18 @@ mysql> select regexp_replace('这是一段中文 This is a passage in English 12
+---------------------------------------------------------------------------------------------+
| 123This is a passage in English 1234567 |
+---------------------------------------------------------------------------------------------+

mysql> select regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{');
+-----------------------------------------------------------------+
| regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{') |
+-----------------------------------------------------------------+
| {"abc":5"def":78} |
+-----------------------------------------------------------------+

mysql> select regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{', 'IGNORE_INVALID_ESCAPE');
+------------------------------------------------------------------------------------------+
| regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{', 'IGNORE_INVALID_ESCAPE') |
+------------------------------------------------------------------------------------------+
| {"abc":5}&&{"def":78} |
+------------------------------------------------------------------------------------------+
```
18 changes: 17 additions & 1 deletion ...nt/sql-manual/sql-functions/scalar-functions/string-functions/regexp-replace.md
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ under the License.
## 语法

```sql
REGEXP_REPLACE(<str>, <pattern>, <repl>)
REGEXP_REPLACE(<str>, <pattern>, <repl>, [flag])
```

## 参数
Expand All @@ -43,6 +43,7 @@ REGEXP_REPLACE(<str>, <pattern>, <repl>)
| `<str>` | 需要进行正则匹配的列。|
| `<pattern>` | 目标模式。|
| `<repl>` | 用于替换匹配模式的字符串。|
| `[flag]`| 可选参数，用于设置是否允许忽略不合法的转义字符。例如 `\{` 等价于 `{`｜

## 返回值

Expand Down Expand Up @@ -71,3 +72,18 @@ mysql> select regexp_replace('这是一段中文 This is a passage in English 12
+---------------------------------------------------------------------------------------------+
| 123This is a passage in English 1234567 |
+---------------------------------------------------------------------------------------------+

mysql> select regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{');
+-----------------------------------------------------------------+
| regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{') |
+-----------------------------------------------------------------+
| {"abc":5"def":78} |
+-----------------------------------------------------------------+

mysql> select regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{', 'IGNORE_INVALID_ESCAPE');
+------------------------------------------------------------------------------------------+
| regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{', 'IGNORE_INVALID_ESCAPE') |
+------------------------------------------------------------------------------------------+
| {"abc":5}&&{"def":78} |
+------------------------------------------------------------------------------------------+
```
18 changes: 17 additions & 1 deletion ....0/sql-manual/sql-functions/scalar-functions/string-functions/regexp-replace.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ under the License.
## 语法

```sql
REGEXP_REPLACE(<str>, <pattern>, <repl>)
REGEXP_REPLACE(<str>, <pattern>, <repl>, [flag])
```

## 参数
Expand All @@ -43,6 +43,7 @@ REGEXP_REPLACE(<str>, <pattern>, <repl>)
| `<str>` | 需要进行正则匹配的列。|
| `<pattern>` | 目标模式。|
| `<repl>` | 用于替换匹配模式的字符串。|
| `[flag]`| 可选参数，用于设置是否允许忽略不合法的转义字符。例如 `\{` 等价于 `{`。3.0.7版本开始支持｜

## 返回值

Expand Down Expand Up @@ -71,3 +72,18 @@ mysql> select regexp_replace('这是一段中文 This is a passage in English 12
+---------------------------------------------------------------------------------------------+
| 123This is a passage in English 1234567 |
+---------------------------------------------------------------------------------------------+

mysql> select regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{');
+-----------------------------------------------------------------+
| regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{') |
+-----------------------------------------------------------------+
| {"abc":5"def":78} |
+-----------------------------------------------------------------+

mysql> select regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{', 'IGNORE_INVALID_ESCAPE');
+------------------------------------------------------------------------------------------+
| regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{', 'IGNORE_INVALID_ESCAPE') |
+------------------------------------------------------------------------------------------+
| {"abc":5}&&{"def":78} |
+------------------------------------------------------------------------------------------+
```
17 changes: 16 additions & 1 deletion ....0/sql-manual/sql-functions/scalar-functions/string-functions/regexp-replace.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ Regular matching of STR strings, replacing the part hitting pattern with a new s
## Syntax

```sql
REGEXP_REPLACE(<str>, <pattern>, <repl>)
REGEXP_REPLACE(<str>, <pattern>, <repl>, [flag])
```

## Parameters
Expand All @@ -43,6 +43,7 @@ REGEXP_REPLACE(<str>, <pattern>, <repl>)
| `<str>` | The column need to do regular matching.|
| `<pattern>` | Target pattern.|
| `<repl>` | The string to replace the matched pattern.|
| [flag] | Optional parameter used to specify whether to allow ignoring invalid escape characters. For example, `\{` is equivalent to `{`. since 3.0.7 version supported |

## Return Value

Expand Down Expand Up @@ -71,4 +72,18 @@ mysql> select regexp_replace('这是一段中文 This is a passage in English 12
+---------------------------------------------------------------------------------------------+
| 123This is a passage in English 1234567 |
+---------------------------------------------------------------------------------------------+

mysql> select regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{');
+-----------------------------------------------------------------+
| regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{') |
+-----------------------------------------------------------------+
| {"abc":5"def":78} |
+-----------------------------------------------------------------+

mysql> select regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{', 'IGNORE_INVALID_ESCAPE');
+------------------------------------------------------------------------------------------+
| regexp_replace('{"abc":5},{"def":78}', '\\}\\,\\{', '\\}&&\\{', 'IGNORE_INVALID_ESCAPE') |
+------------------------------------------------------------------------------------------+
| {"abc":5}&&{"def":78} |
+------------------------------------------------------------------------------------------+
```