arrow-ipc: Default to not preserving dict IDs #6788
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The integration tests seem to be legitimately failing on this |
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Is this the appropriate docs page to look at for trying to reproduce this locally? https://github.com/apache/arrow-rs/tree/main/arrow-integration-testing |
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So diving in, it looks like ipc, and c-data work fine, it's just flight. And surprisingly even rust-to-rust seems broken, which is what I'm going to start with, by adding more tests to arrow-flight. |
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Previously the integration tests forced preserving dict IDs in some places and used the default in others. This worked fine previously because preserving dict IDs used to be the default, but it isn't anymore.
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tustvold
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Nov 27, 2024
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Which issue does this PR close?
Related to #5981
Rationale for this change
This is the first step towards removing the
dict_idfield as discussed in #5981. With this patch the default behavior changes to what the behavior will be once the field is fully removed.The previous behavior can still be restored by passing
with_preserve_dict_id(true), however, doing so is now deprecated and will be removed together with thedict_idin the next (March) DataFusion release.What changes are included in this PR?
Default to not preserving the dict ID from the schema field
dict_id.Are there any user-facing changes?
Not a breaking change to an API, but the default behavior changes.
@tustvold @alamb