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Mention that casts work for drift types

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Simon Binder 2023-01-06 17:32:05 +01:00
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docs/pages/docs/Using SQL/drift_files.md
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@ -142,6 +142,16 @@ by their name. For this, use `ENUMNAME(...)` instead of `ENUM(...)`.
For details on all supported types, and information on how to switch between the For details on all supported types, and information on how to switch between the
datetime modes, see [this section]({{ '../Getting started/advanced_dart_tables.md#supported-column-types' | pageUrl }}). datetime modes, see [this section]({{ '../Getting started/advanced_dart_tables.md#supported-column-types' | pageUrl }}).
The additional drift-specific types (`BOOLEAN`, `DATETIME`, `ENUM` and `ENUMNAME`) are also supported in `CAST`
expressions, which is helpful for views:
```sql
CREATE VIEW with_next_status AS
SELECT id, CAST(status + 1 AS ENUM(Status)) AS status
FROM tasks
WHERE status < 3;
```
### Drift-specific features ### Drift-specific features
To help support drift's Dart API, `CREATE TABLE` statements in drift files can To help support drift's Dart API, `CREATE TABLE` statements in drift files can