Chao Sun created ARROW-3357:
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Summary: [Rust] Add a mutable buffer implementation
Key: ARROW-3357
URL: https://issues.apache.org/jira/browse/ARROW-3357
Project: Apache Arrow
Issue Type: Sub-task
Components: Rust
Reporter: Chao Sun
Assignee: Chao Sun
Currently we only have a immutable buffer implementation ({{Buffer}}). To
implement various array builders, it's better to also have a mutable version of
this so that we can keep appending data to a buffer.
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