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Posted to issues@arrow.apache.org by "Jörn Horstmann (Jira)" <ji...@apache.org> on 2020/09/24 08:51:00 UTC
[jira] [Created] (ARROW-10078) [Rust]: From
implementations should validate data type
Jörn Horstmann created ARROW-10078:
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Summary: [Rust]: From<ArrayDataRef> implementations should validate data type
Key: ARROW-10078
URL: https://issues.apache.org/jira/browse/ARROW-10078
Project: Apache Arrow
Issue Type: Improvement
Components: Rust
Affects Versions: 1.0.1
Reporter: Jörn Horstmann
See [https://github.com/apache/arrow/blob/ac86123a3f013ba1eeac2b66c2ccd00810c67871/rust/arrow/src/array/array.rs#L870]
The implementation currently does not validate that the datatype of the ArrayData argument matches. This can lead to inconsistencies, for example it is possible to create a TimestampMillisecondArray whose datatype reports Float64.
A similar onconsistentcy could arise when trying to convert between types like
{code:java}
let keys: Int32Array = dict_array.data().into() {code}
Here {{keys.data_type()}} would still return {{Dictionary}}
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