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From "Emilio Lahr-Vivaz (JIRA)" <>
Subject [jira] [Commented] (ARROW-542) [Java] Implement dictionaries in stream/file encoding
Date Wed, 08 Feb 2017 17:40:42 GMT


Emilio Lahr-Vivaz commented on ARROW-542:

[~wesmckinn] I'm looking into how dictionary vectors will be encoded in the file format. In
the current message definitions, it appears dictionary batches are distinct from regular batches,
and have an ID associated with them:
Wouldn't the dictionary already be defined by the Field? I'm unclear what the ID in the DictionaryBatch
is supposed to represent.

> [Java] Implement dictionaries in stream/file encoding
> -----------------------------------------------------
>                 Key: ARROW-542
>                 URL:
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Java - Vectors
>            Reporter: Emilio Lahr-Vivaz
>            Assignee: Emilio Lahr-Vivaz

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