> For the complete documentation index, see [llms.txt](https://docs.pinot.apache.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pinot.apache.org/functions/string/splitpart.md).

# splitPart

This section contains reference documentation for the splitPart function.

Splits the input string by a delimiter and returns one element from the result.

Pinot supports both `splitPart(str, delimiter, index)` and `splitPart(str, delimiter, limit, index)`. The snake-case alias `split_part(...)` is also accepted. The index is 0-based. Negative indices count from the end of the split result. Empty fields from leading, consecutive, or trailing delimiters are discarded. If a split limit is reached, the final field contains the unsplit remainder, including any trailing delimiters.

## Signature

```sql
splitPart(str, delimiter, index)
splitPart(str, delimiter, limit, index)
```

## Parameters

* `str`: Input string to split.
* `delimiter`: Delimiter used to split the string.
* `index`: 0-based element index. Negative values count from the end.
* `limit`: Optional split limit applied before selecting the element.

## Returns

Returns the selected string element. If the index is out of bounds, Pinot returns the string literal `"null"`.

## Usage examples

These examples are derived from `StringFunctionsTest`.

```sql
SELECT splitPart('org.apache.pinot.common.function', '.', 2) AS value
```

Returns:

```
pinot
```

```sql
SELECT splitPart('org.apache.pinot.common.function', '.', -1) AS value
```

Returns:

```
function
```

```sql
SELECT splitPart('org.apache.pinot.common.function', '.', 3, -3) AS value
```

Returns:

```
org
```

## Notes

* The 4-argument form applies the split limit first and then looks up the requested index.
* Multi-character delimiters are supported.
* Empty input strings return `"null"` when the delimiter is non-empty.
* For example, `splitPart('a,b,', ',', -1)` returns `b`, while `splitPart('a,b,', ',', 2, -1)` returns `b,`.


---

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