[ https://issues.apache.org/jira/browse/ARROW-229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney resolved ARROW-229. -------------------------------- Resolution: Fixed Issue resolved by pull request 1027 [https://github.com/apache/arrow/pull/1027] > [C++] Implement safe casts for primitive types > ---------------------------------------------- > > Key: ARROW-229 > URL: https://issues.apache.org/jira/browse/ARROW-229 > Project: Apache Arrow > Issue Type: New Feature > Components: C++ > Reporter: Uwe L. Korn > Assignee: Wes McKinney > Fix For: 0.7.0 > > > In some situations, you want to cast the data in a PrimitiveArray to a > different (but similar) data type, e.g. from {{uint32_t}} to {{int32_t}} or > {{uint32_t}} to {{uint8_t}}. This can either be done by reinterpreting the > data or needs to involve a copy if the size of the underlying type changes. > There is already an implementation for this in {{parquet-cpp}} that could be > pulled out into Arrow: > https://github.com/apache/parquet-cpp/blob/9a0407e684c0a6299d0e6ab98c11c1162915c0ee/src/parquet/arrow/writer.cc#L71 -- This message was sent by Atlassian JIRA (v6.4.14#64029)