# Information Schema INNODB\_FT\_DELETED Table

The [Information Schema](/docs/server/reference/system-tables/information-schema.md) `INNODB_FT_DELETED` table contains rows that have been deleted from an InnoDB [fulltext index](/docs/server/ha-and-performance/optimization-and-tuning/optimization-and-indexes/full-text-indexes.md). This information is then used to filter results on subsequent searches, removing the need to expensively reorganise the index each time a row is deleted.

The fulltext index is then only reorganized when an [OPTIMIZE TABLE](/docs/server/ha-and-performance/optimization-and-tuning/optimizing-tables/optimize-table.md) statement is underway. The related [INNODB\_FT\_BEING\_DELETED](/docs/server/reference/system-tables/information-schema/information-schema-tables/information-schema-innodb-tables/information-schema-innodb_ft_being_deleted-table.md) table contains rows being deleted while an `OPTIMIZE TABLE` is in the process of running.

The `SUPER` [privilege](/docs/server/reference/sql-statements/account-management-sql-statements/grant.md) is required to view the table, and it also requires the [innodb\_ft\_aux\_table](/docs/server/server-usage/storage-engines/innodb/innodb-system-variables.md#innodb_ft_aux_table) system variable to be set.

It has the following column:

| Column  | Description                                                                                                                                |
| ------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| DOC\_ID | Document ID of the deleted row deleted. Either an underlying ID value, or a sequence value generated by InnoDB if no usable option exists. |

## Example

```sql
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_DELETED;
+--------+
| DOC_ID |
+--------+
|      2 |
+--------+

DELETE FROM test.ft_innodb LIMIT 1;

SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_DELETED;
+--------+
| DOC_ID |
+--------+
|      2 |
|      3 |
+--------+
```

<sub>*This page is licensed: CC BY-SA / Gnu FDL*</sub>

{% @marketo/form formId="4316" %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://mariadb.com/docs/server/reference/system-tables/information-schema/information-schema-tables/information-schema-innodb-tables/information-schema-innodb_ft_deleted-table.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.