> For the complete documentation index, see [llms.txt](https://upsolver.gitbook.io/content/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://upsolver.gitbook.io/content/reference-1/functions-and-operators/functions/regular-expressions/regex_named_groups.md).

# REGEX\_NAMED\_GROUPS

Matches the regular expression on the input string. Returns the record with field names and group names.

## Syntax

```sql
REGEX_NAMED_GROUPS(pattern, allMatches, filterEmpty, input)
```

## Arguments

<table><thead><tr><th>Name</th><th width="169">Type</th><th>Description</th><th>Default Value</th></tr></thead><tbody><tr><td>pattern</td><td>string</td><td>Regular Expression Pattern</td><td></td></tr><tr><td>allMatches</td><td>Boolean</td><td>Return all the matches of the pattern, and not only the first one</td><td>false</td></tr><tr><td>filterEmpty</td><td>Boolean</td><td>Filter out empty matches</td><td>false</td></tr><tr><td>input</td><td>string</td><td></td><td></td></tr></tbody></table>

## Examples

<table><thead><tr><th>pattern</th><th>allMatches</th><th width="155">filterEmpty</th><th>input</th><th>Output</th></tr></thead><tbody><tr><td>'^(?:(?.<em>?):/)?/?(?[^:/\s]+)(?::(?\d</em>))?(?:(/\w+)<em>/)(?[\w-.]+[^#?\s]+)(?:.</em>)?$'</td><td>false</td><td>false</td><td>'https://www.domain.com/page.html'</td><td>{scheme: <code>https</code>, domain: <code>www.domain.com</code>, port: null, page: <code>page.html</code>}</td></tr><tr><td>'^(?:(?.<em>?):/)?/?(?[^:/\s]+)(?::(?\d</em>))?(?:(/\w+)<em>/)(?[\w-.]+[^#?\s]+)(?:.</em>)?$'</td><td>false</td><td>false</td><td>'http://www.domain.com:8080/page.html'</td><td>{scheme: <code>http</code>, domain: <code>www.domain.com</code>, port: <code>8080</code>, page: <code>page.html</code>}</td></tr><tr><td>'^(?\d*)$'</td><td>false</td><td>false</td><td>'123'</td><td>{digits: <code>123</code>}</td></tr><tr><td>'^(?\d*)$'</td><td>false</td><td>false</td><td>'foo'</td><td>null</td></tr><tr><td>'^(?\d*)$'</td><td>false</td><td>false</td><td>''</td><td>{digits: ``}</td></tr><tr><td>'^(?\d*)$'</td><td>false</td><td>true</td><td>''</td><td>null</td></tr><tr><td>'\bwww.(?[^.]*).com\b'</td><td>true</td><td>false</td><td>'www.upsolver.com'</td><td>{domain: <code>upsolver</code>}</td></tr><tr><td>'\bwww.(?[^.]*).com\b'</td><td>true</td><td>false</td><td>'www.a.com www.b.com'</td><td>[{domain: <code>a</code>}, {domain: <code>b</code>}]</td></tr><tr><td>'\bwww.(?[^.]*).com\b'</td><td>false</td><td>false</td><td>'www.a.com www.b.com'</td><td>{domain: <code>a</code>}</td></tr></tbody></table>

### Transformation job example

#### SQL

```sql
CREATE JOB function_operator_example
    ADD_MISSING_COLUMNS = true
AS INSERT INTO default_glue_catalog.upsolver_samples.orders_transformed_data 
  MAP_COLUMNS_BY_NAME
    SELECT pattern, allMatches, filterEmpty, input,
        REGEX_NAMED_GROUPS('^(?:(?<scheme>.*?):\/)?\/?(?<domain>[^:\/\s]+)(?::(?<port>\d*))?(?:(\/\w+)*\/)(?<page>[\w\-\.]+[^#?\s]+)(?:.*)?$', false, false, input) AS Output
    FROM default_glue_catalog.upsolver_samples.orders_raw_data
    LET pattern = '^(?:(?<scheme>.*?):\/)?\/?(?<domain>[^:\/\s]+)(?::(?<port>\d*))?(?:(\/\w+)*\/)(?<page>[\w\-\.]+[^#?\s]+)(?:.*)?$',
        allMatches = false,
        filterEmpty = false,
        input = 'https://www.domain.com/page.html'
    WHERE $commit_time BETWEEN run_start_time() AND run_end_time()
    LIMIT 1;
```

#### Query result

<table><thead><tr><th width="175">pattern</th><th width="122">allMatches</th><th width="130">filterEmpty</th><th>input</th><th>Output</th></tr></thead><tbody><tr><td>'^(?:(?.<em>?):/)?/?(?[^:/\s]+)(?::(?\d</em>))?(?:(/\w+)<em>/)(?[\w-.]+[^#?\s]+)(?:.</em>)?$'</td><td>false</td><td>false</td><td>'https://www.domain.com/page.html'</td><td>{scheme: <code>https</code>, domain: <code>www.domain.com</code>, port: null, page: <code>page.html</code>}</td></tr></tbody></table>


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