klion26 opened a new pull request, #9169:
URL: https://github.com/apache/arrow-rs/pull/9169
# Which issue does this PR close?
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- Closes #8982.
# What changes are included in this PR?
This PR adds `lossy` in `CastOptions` which wants to controlling precision
loss in casts.
Behavior matrix:
| `safe` | `lossy` | Behavior |
| --- | --- | --- |
| `true` | `false` | Default. Invalid casts return Null, Lossy
casts(e.g., float to int) return NULL. |
| `true` | `true` | Invalid casts return Null, Lossy casts are allowed
(truncation occurs). |
| `false` | `false` | Invalid casts return an error. Lossy casts return an
error. |
| `false` | `true` | Invalid casts return an error. Lossy casts are
allowed (truncation occurs). |
# Are these changes tested?
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No tests, this added a new flag.
# Are there any user-facing changes?
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Yes, changed the `CastOptions`
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