[ARROW-13381] [C++] ArrayFromJSON doesn't work for float value dictionary type

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18745
• Assignee: Eduardo Ponce
• Reporter: Niranda Perera
• Created: 19/Jul/21 14:34
• Updated: 11/Jan/23 08:32
• Resolved: 19/Jul/21 19:12

Description

The following code returns a NotImplemented error. It works without a problem for int/ string type values.

auto arr = ArrayFromJSON(dictionary(int32(), float32()), "[1, 1000]");


// output 
-- Arrow Fatal Error --
NotImplemented: JSON conversion to dictionary<values=float, indices=int32, ordered=0> not implemented
Process finished with exit code 134 (interrupted by signal 6: SIGABRT)

Issue Links

• links to: GitHub Pull Request #10746