Support message level custom_metadata on DictionaryBatch (IPC Message field)

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
42/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
java
Domain
data

Research direction

Compare the DictionaryBatch implementation with the analogous work in Apache Arrow issue 1035, and inspect the IPC Message.fbs definition for the message-level custom_metadata field. Done means DictionaryBatch supports that field consistently with the Arrow IPC format; verify the behavior with the repository's existing tests.

Written by the indexing model from the issue text.

Description

Type: enhancement
Describe the enhancement requested

Analogous to https://github.com/apache/arrow-java/issues/1035 but for DictionaryBatch.

The Arrow IPC format supports Message level custom_metadata, see https://arrow.apache.org/docs/format/Columnar.html#custom-application-metadata and https://github.com/apache/arrow/blob/main/format/Message.fbs#L154

The DictionaryBatch in this implementation currently has no support for this field.

Dominant language
Java
Stars
95
Forks
154
Avg merge
2d 16h
Merged PRs (30d)
9

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