# @ — DuckDB 1.5.5

Absolute value

- Reference: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/
- JSON: /products/haybarn/functions/api/v1/duckdb-1.5.5/functions/operator-40.json
- Snapshot ID: duckdb-1.5.5
- Engine: duckdb v1.5.5
- Source ID: d8cdaa33fd
- Binary SHA-256: 8463eb26527b278109cfddffc4606e1019ebefcfe2eac75efc53c76ed8f282d5
- Captured: 2026-09-05T18:37:40.699Z
- Source: https://github.com/duckdb/duckdb/releases/tag/v1.5.5
- Loaded extensions: autocomplete, core_functions, icu, json, parquet, shell

## Interpretation

- Choose a snapshot matching the target engine and build. The default is captured from the published Haybarn WASM package used by the browser playground. Historical native snapshots are also available.
- Availability is an observation in the recorded build and extension profile, not a guarantee of support in every installation or in WASM.
- Types and descriptions are declarations from duckdb_functions(). Binding can specialize result types. Null means not supplied by the catalog; do not invent defaults, optionality, argument mode, or table output columns.
- Raw parameter arrays preserve catalog order for scalar/aggregate/macro functions. Raw table arguments are alphabetical. Use callingConvention for engine-confirmed positional order and named arguments; null modes are unrecorded. Named does not mean optional. Macro defaults and special named variadic behavior are not supplied by duckdb_functions().
- Catalog examples are source material and may require data or extensions. runnableExamples contains separately verified SQL for the pinned WASM package; sample-data adaptations and guide examples are labeled separately.
- Guide annotations and recipes are separate editorial content. The browser runner always uses Haybarn WASM 1.5.5-rc3, independently of the documentation snapshot.
- All URLs beginning with / are relative to the origin hosting this document. Exports require no JavaScript, cookies, API key, or browser engine.

## Overloads

### overload-6df169d62a4d4bc2

Kind: scalar. Parameter order: catalog-order.

```text
@x: BIGINT → BIGINT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-6df169d62a4d4bc2

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | BIGINT | not recorded |

Declared return type: BIGINT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-a96a1b1883644558

Kind: scalar. Parameter order: catalog-order.

```text
@x: DECIMAL → DECIMAL
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-a96a1b1883644558

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | DECIMAL | not recorded |

Declared return type: DECIMAL. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-a13252353d2d3b40

Kind: scalar. Parameter order: catalog-order.

```text
@x: DOUBLE → DOUBLE
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-a13252353d2d3b40

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | DOUBLE | not recorded |

Declared return type: DOUBLE. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-5037f034001f4cbd

Kind: scalar. Parameter order: catalog-order.

```text
@x: FLOAT → FLOAT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-5037f034001f4cbd

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | FLOAT | not recorded |

Declared return type: FLOAT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-53c28b4aa75ca440

Kind: scalar. Parameter order: catalog-order.

```text
@x: HUGEINT → HUGEINT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-53c28b4aa75ca440

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | HUGEINT | not recorded |

Declared return type: HUGEINT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-86527a3b3047a099

Kind: scalar. Parameter order: catalog-order.

```text
@x: INTEGER → INTEGER
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-86527a3b3047a099

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | INTEGER | not recorded |

Declared return type: INTEGER. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-a3216d75cfba627a

Kind: scalar. Parameter order: catalog-order.

```text
@x: SMALLINT → SMALLINT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-a3216d75cfba627a

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | SMALLINT | not recorded |

Declared return type: SMALLINT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-c8e3ace37a8a99d4

Kind: scalar. Parameter order: catalog-order.

```text
@x: TINYINT → TINYINT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-c8e3ace37a8a99d4

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | TINYINT | not recorded |

Declared return type: TINYINT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-eca9aa91cc60f17b

Kind: scalar. Parameter order: catalog-order.

```text
@x: UBIGINT → UBIGINT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-eca9aa91cc60f17b

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | UBIGINT | not recorded |

Declared return type: UBIGINT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-e13da49a05bb8780

Kind: scalar. Parameter order: catalog-order.

```text
@x: UHUGEINT → UHUGEINT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-e13da49a05bb8780

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | UHUGEINT | not recorded |

Declared return type: UHUGEINT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-ee1f550e2e6c30b6

Kind: scalar. Parameter order: catalog-order.

```text
@x: UINTEGER → UINTEGER
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-ee1f550e2e6c30b6

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | UINTEGER | not recorded |

Declared return type: UINTEGER. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-7243b65251691013

Kind: scalar. Parameter order: catalog-order.

```text
@x: USMALLINT → USMALLINT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-7243b65251691013

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | USMALLINT | not recorded |

Declared return type: USMALLINT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-f3b412c38fc0f5e0

Kind: scalar. Parameter order: catalog-order.

```text
@x: UTINYINT → UTINYINT
```

Link: /products/haybarn/functions/releases/duckdb-1.5.5/operator-40/#overload-f3b412c38fc0f5e0

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| x | UTINYINT | not recorded |

Declared return type: UTINYINT. Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.


## Guide recipes

No guide recipes.

## Engine catalog examples

Source examples may require additional data or extensions. Expressions are wrapped in SELECT; execution verification is not recorded.

Reported for: overload-6df169d62a4d4bc2, overload-a96a1b1883644558, overload-a13252353d2d3b40, overload-5037f034001f4cbd, overload-53c28b4aa75ca440, overload-86527a3b3047a099, overload-a3216d75cfba627a, overload-c8e3ace37a8a99d4, overload-eca9aa91cc60f17b, overload-e13da49a05bb8780, overload-ee1f550e2e6c30b6, overload-7243b65251691013, overload-f3b412c38fc0f5e0

```sql
SELECT abs(-17.4);
```

## Runnable examples

Executed successfully in Haybarn WASM 1.5.5-rc3. Sample data and guide examples are separate from the original catalog.

```sql
SELECT abs(-17.4);
```

## Additional DuckDB documentation

- [Functions](https://duckdb.org/docs/current/sql/functions/overview)

## Observed availability

| Snapshot | Observed | Overloads | JSON |
| --- | --- | --- | --- |
| haybarn-1.5.5-rc3 | present | 13 | [reference](/products/haybarn/functions/api/v1/haybarn-1.5.5-rc3/functions/operator-40.json) |
| duckdb-1.5.5 | present | 13 | [reference](/products/haybarn/functions/api/v1/duckdb-1.5.5/functions/operator-40.json) |
| duckdb-1.4.4 | present | 13 | [reference](/products/haybarn/functions/api/v1/duckdb-1.4.4/functions/operator-40.json) |
| duckdb-1.3.2 | present | 13 | [reference](/products/haybarn/functions/api/v1/duckdb-1.3.2/functions/operator-40.json) |

Engine catalog documentation is derived from MIT-licensed Haybarn and DuckDB. [Notices](/third-party-notices.txt).