# date_part — Haybarn WASM 1.5.5-rc3

Get subfield (equivalent to extract)

- Reference: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/
- JSON: /products/haybarn/functions/api/v1/haybarn-1.5.5-rc3/functions/date_part.json
- Snapshot ID: haybarn-1.5.5-rc3
- Engine: haybarn v1.5.6-dev149
- Source ID: 105edd31b5
- Binary SHA-256: 426638bc374fcc542fea93b251f885bfb7d221c68fcc0a5a81cc565d7e6ca180
- Captured: 2026-09-06T00:23:30.515Z
- Source: https://www.npmjs.com/package/@haybarn/haybarn-wasm/v/1.5.5-rc3
- Loaded extensions: core_functions, icu, json, parquet

## 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-ea02de11de7f159e

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR, col1: DATE) → BIGINT
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-ea02de11de7f159e

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR | not recorded |
| col1 | DATE | not recorded |

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

### overload-41e0d50701d67f45

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR, col1: INTERVAL) → BIGINT
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-41e0d50701d67f45

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR | not recorded |
| col1 | INTERVAL | not recorded |

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

### overload-386aa643bfa2aba4

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR, col1: TIME) → BIGINT
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-386aa643bfa2aba4

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR | not recorded |
| col1 | TIME | not recorded |

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

### overload-66ae189fbccf28f5

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR, col1: TIME WITH TIME ZONE) → BIGINT
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-66ae189fbccf28f5

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR | not recorded |
| col1 | TIME WITH TIME ZONE | not recorded |

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

### overload-2ecd2afd8e035ada

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR, col1: TIME_NS) → BIGINT
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-2ecd2afd8e035ada

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR | not recorded |
| col1 | TIME_NS | not recorded |

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

### overload-ede6254a8b5a7e46

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR, col1: TIMESTAMP) → BIGINT
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-ede6254a8b5a7e46

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR | not recorded |
| col1 | TIMESTAMP | not recorded |

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

### overload-e95f2fbe7bb453e2

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR, col1: TIMESTAMP WITH TIME ZONE) → BIGINT
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-e95f2fbe7bb453e2

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR | not recorded |
| col1 | TIMESTAMP WITH TIME ZONE | not recorded |

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

### overload-1ba4c4ad3b2da5f0

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR[], col1: DATE) → STRUCT()
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-1ba4c4ad3b2da5f0

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR[] | not recorded |
| col1 | DATE | not recorded |

Declared return type: STRUCT(). Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-e89108bb2a496c08

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR[], col1: INTERVAL) → STRUCT()
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-e89108bb2a496c08

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR[] | not recorded |
| col1 | INTERVAL | not recorded |

Declared return type: STRUCT(). Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-01e404b1536a4103

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR[], col1: TIME) → STRUCT()
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-01e404b1536a4103

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR[] | not recorded |
| col1 | TIME | not recorded |

Declared return type: STRUCT(). Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-b2729249d56c94c0

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR[], col1: TIME WITH TIME ZONE) → STRUCT()
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-b2729249d56c94c0

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR[] | not recorded |
| col1 | TIME WITH TIME ZONE | not recorded |

Declared return type: STRUCT(). Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-4c1ada2070183433

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR[], col1: TIME_NS) → STRUCT()
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-4c1ada2070183433

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR[] | not recorded |
| col1 | TIME_NS | not recorded |

Declared return type: STRUCT(). Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-528dc30ae4ab583b

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR[], col1: TIMESTAMP) → STRUCT()
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-528dc30ae4ab583b

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR[] | not recorded |
| col1 | TIMESTAMP | not recorded |

Declared return type: STRUCT(). Variadic argument type: none declared.
Stability: CONSISTENT. Declared side effects: false.

### overload-3c73689c44d667cd

Kind: scalar. Parameter order: catalog-order.

```text
date_part(ts: VARCHAR[], col1: TIMESTAMP WITH TIME ZONE) → STRUCT()
```

Link: /products/haybarn/functions/releases/haybarn-1.5.5-rc3/date_part/#overload-3c73689c44d667cd

| Argument | Catalog type | Calling mode |
| --- | --- | --- |
| ts | VARCHAR[] | not recorded |
| col1 | TIMESTAMP WITH TIME ZONE | not recorded |

Declared return type: STRUCT(). 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-ea02de11de7f159e, overload-41e0d50701d67f45, overload-386aa643bfa2aba4, overload-66ae189fbccf28f5, overload-2ecd2afd8e035ada, overload-ede6254a8b5a7e46, overload-e95f2fbe7bb453e2, overload-1ba4c4ad3b2da5f0, overload-e89108bb2a496c08, overload-01e404b1536a4103, overload-b2729249d56c94c0, overload-4c1ada2070183433, overload-528dc30ae4ab583b, overload-3c73689c44d667cd

```sql
SELECT date_part('minute', TIMESTAMP '1992-09-20 20:38:40');
```

## Runnable examples

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

```sql
SELECT date_part('minute', TIMESTAMP '1992-09-20 20:38:40');
```

## Additional DuckDB documentation

- [Date Functions](https://duckdb.org/docs/current/sql/functions/date#date_partpart-date)
- [Interval Functions](https://duckdb.org/docs/current/sql/functions/interval#date_partpart-interval)
- [Time Functions](https://duckdb.org/docs/current/sql/functions/time#date_partpart-time)

## Observed availability

| Snapshot | Observed | Overloads | JSON |
| --- | --- | --- | --- |
| haybarn-1.5.5-rc3 | present | 14 | [reference](/products/haybarn/functions/api/v1/haybarn-1.5.5-rc3/functions/date_part.json) |
| duckdb-1.5.5 | present | 14 | [reference](/products/haybarn/functions/api/v1/duckdb-1.5.5/functions/date_part.json) |
| duckdb-1.4.4 | present | 14 | [reference](/products/haybarn/functions/api/v1/duckdb-1.4.4/functions/date_part.json) |
| duckdb-1.3.2 | present | 12 | [reference](/products/haybarn/functions/api/v1/duckdb-1.3.2/functions/date_part.json) |

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