UDFRegExpExtract (Hive 3.1.1 API)

```
public class UDFRegExpExtract
extends UDF
```
UDF to extract a specific group identified by a java regex. Note that if a regexp has a backslash ('\'), then need to specify '\\' For example, regexp_extract('100-200', '(\\d+)-(\\d+)', 1) will return '100'

Constructors
Constructor and Description
`UDFRegExpExtract()`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`evaluate(String s, String regex)`
`String`	`evaluate(String s, String regex, Integer extractIndex)`

Methods inherited from class org.apache.hadoop.hive.ql.exec.UDF
getRequiredFiles, getRequiredJars, getResolver, setResolver

public String evaluate(String s,
                       String regex,
                       Integer extractIndex)

public String evaluate(String s,
                       String regex)

Class UDFRegExpExtract