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Posted to jira@arrow.apache.org by "Franz (Jira)" <ji...@apache.org> on 2021/05/05 12:28:00 UTC
[jira] [Created] (ARROW-12657) String hex to numeric conversion and
bit shifting
Franz created ARROW-12657:
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Summary: String hex to numeric conversion and bit shifting
Key: ARROW-12657
URL: https://issues.apache.org/jira/browse/ARROW-12657
Project: Apache Arrow
Issue Type: New Feature
Reporter: Franz
Hi Apache Arrow Community,
thanks for the great work on this project - it is really a game changer. I've started to use it more frequently since more and more compute kernels became available.
However, I have a current requirement which I can't fulfill, yet. More concretely, I have hex values as strings. I need to convert them to numeric type (int) and apply bit shifting.
Currently, I can't find a way to do so. I tried type casts (string to int) like
{code:java}
import pyarrow as pa
array = pa.array(["0x2001591", "0x2000848", "0x2000123"])
array.cast(pa.uint32()){code}
However this results in _ArrowInvalid: Failed to parse string: '0x2000123' as a scalar of type uint32._
Moreover, I will need to apply bit shifting once converted. I'm not sure if there is anything comparable in the compute kernels, yet.
Thanks for any help in advance.
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