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Posted to issues@arrow.apache.org by "Micah Kornfield (Jira)" <ji...@apache.org> on 2021/08/19 05:29:00 UTC
[jira] [Created] (ARROW-13672) [C++] BinaryBuilder doesn't preserve
passed in DataType
Micah Kornfield created ARROW-13672:
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Summary: [C++] BinaryBuilder doesn't preserve passed in DataType
Key: ARROW-13672
URL: https://issues.apache.org/jira/browse/ARROW-13672
Project: Apache Arrow
Issue Type: Bug
Components: C++
Affects Versions: 5.0.0
Reporter: Micah Kornfield
There is a [constructor|https://github.com/apache/arrow/blob/1430c93f68960e10a50d27f465eb174e76ac06b2/cpp/src/arrow/array/builder_binary.h#L56] that takes a datatype for binary builder but it is discarded. When constructing an Array the type is always the value returned from type() [binary|https://github.com/apache/arrow/blob/1430c93f68960e10a50d27f465eb174e76ac06b2/cpp/src/arrow/array/builder_binary.h#L390]
If a consumer of the API wants to have an extension array this prevents them from passing the extension type though.
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