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docs(cayenne): v2.2 preserves timestamp units; the 2.2.x snapshot still says microseconds #2189

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lukekim merged 1 commit into from
Sep 10, 2026
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docs(cayenne): v2.2 preserves timestamp units; the 2.2.x snapshot still says microseconds #2189

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17 changes: 12 additions & 5 deletions website/versioned_docs/version-2.2.x/components/data-accelerators/cayenne/index.md
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Expand Up @@ -645,18 +645,25 @@ Cayenne (via Vortex) supports most Arrow data types with the following considera
- Boolean
- Utf8 and LargeUtf8 strings
- Binary and LargeBinary
- Timestamps (normalized to Microsecond precision)
- Timestamps, preserving the source unit and timezone
- Date32 and Date64
- Lists and FixedSizeLists
- Maps
- Structs

### Automatically Converted Types

| Original Type | Converted To | Notes |
| --------------------------- | ------------------------ | --------------------------------------------- |
| `Float16` | `Float32` | Automatic conversion for Vortex compatibility |
| `Timestamp(Nanosecond/...)` | `Timestamp(Microsecond)` | Precision normalized |
| Original Type | Converted To | Notes |
| ------------- | ------------ | --------------------------------------------- |
| `Float16` | `Float32` | Automatic conversion for Vortex compatibility |

:::note Tables created before v2.2.0

These tables continue to normalize timestamps to microseconds. Preserving the source unit requires
recreating the table with `mode: file_create` in an empty directory. The
[`on_schema_change`](../../reference/spicepod/datasets#on_schema_change) setting does not migrate existing timestamps.

:::

### Unsupported Types

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