# FT.EXPLAIN













Return the execution plan for a complex query

[Examples](#examples)

## Required arguments

<details open>
<summary><code>index</code></summary>

is index name. You must first create the index using [`FT.CREATE`](https://redis.io/docs/latestcommands/ft.create/).
</details>

<details open>
<summary><code>query</code></summary>

is query string, as if sent to FT.SEARCH`.
</details>

## Optional arguments

<details open>
<summary><code>DIALECT {dialect_version}</code></summary>

is dialect version under which to execute the query. If not specified, the query executes under the default dialect version set during module initial loading or via [`FT.CONFIG SET`](https://redis.io/docs/latestcommands/ft.config-set/) command.
</details>


 
- In the returned response, a `+` on a term is an indication of stemming.
- Use `redis-cli --raw` to properly read line-breaks in the returned response.



## Return

FT.EXPLAIN returns a string representing the execution plan.

## Examples

<details open>
<summary><b>Return the execution plan for a complex query</b></summary>


$ redis-cli --raw

127.0.0.1:6379> FT.EXPLAIN rd "(foo bar)|(hello world) @date:[100 200]|@date:[500 +inf]"
INTERSECT {
  UNION {
    INTERSECT {
      foo
      bar
    }
    INTERSECT {
      hello
      world
    }
  }
  UNION {
    NUMERIC {100.000000 <= x <= 200.000000}
    NUMERIC {500.000000 <= x <= inf}
  }
}

</details>

## See also

[`FT.CREATE`](https://redis.io/docs/latestcommands/ft.create/) | [`FT.SEARCH`](https://redis.io/docs/latestcommands/ft.search/) | [`FT.CONFIG SET`](https://redis.io/docs/latestcommands/ft.config-set/)

## Related topics

[RediSearch](https://redis.io/docs/latest/develop/ai/search-and-query/)