[jira] [Created] (ARROW-10405) [C++] IsIn kernel should be able to lookup dictionary in string

["Neal Richardson (Jira)" <ji...@apache.org>]

Neal Richardson created ARROW-10405:
---------------------------------------

             Summary: [C++] IsIn kernel should be able to lookup dictionary in string
                 Key: ARROW-10405
                 URL: https://issues.apache.org/jira/browse/ARROW-10405
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
            Reporter: Neal Richardson
            Assignee: Ben Kietzman
             Fix For: 3.0.0


Repro in R:

{code}
> a1 <- Array$create(c("A", "B", "C"))
> a2 <- Array$create(as.factor(c("A", "B", "C")))
> a1
Array
<string>
[
  "A",
  "B",
  "C"
]
> a2
DictionaryArray
<dictionary<values=string, indices=int8>>

-- dictionary:
  [
    "A",
    "B",
    "C"
  ]
-- indices:
  [
    0,
    1,
    2
  ]
> arrow:::call_function("is_in_meta_binary", a1, Array$create("B"))
<pointer: 0x5575885e9070>
> arrow:::call_function("is_in_meta_binary", a2, Array$create("B"))
Error in compute__CallFunction(function_name, args, options) : 
  Invalid: Array type didn't match type of values set: dictionary<values=string, indices=int8, ordered=0> vs string
{code}



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