> ## Documentation Index
> Fetch the complete documentation index at: https://docs.firebolt.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Regular expressions functions

> Snowflake regular expressions functions supported in Snowflake compatibility mode.

<span className="feature-tag">Preview</span>

Snowflake [regular expressions functions](https://docs.snowflake.com/en/sql-reference/intro-summary-operators-functions) in [Snowflake compatibility mode](/reference-sql/snowflake/overview).

| Function                                                                      | Support          | Notes                                   |
| :---------------------------------------------------------------------------- | :--------------- | :-------------------------------------- |
| `REGEXP_EXTRACT_ALL`                                                          | Supported        |                                         |
| `REGEXP_LIKE`                                                                 | Supported        |                                         |
| `REGEXP_REPLACE`                                                              | With limitations | Available for some argument types only. |
| `REGEXP_COUNT`, `REGEXP_INSTR`, `REGEXP_SUBSTR`, `REGEXP_SUBSTR_ALL`, `RLIKE` | Not supported    |                                         |