Neal Richardson created ARROW-17973:
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Summary: [C++] Expression::ToString wrong for nullary function
call
Key: ARROW-17973
URL: https://issues.apache.org/jira/browse/ARROW-17973
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: Neal Richardson
Easy reproducer from R:
{code}
library(arrow)
Expression$create("random")
# Expression
# rando)
{code}
If you give it an argument (invalid in the case of random(), but Expression
doesn't know that), it's fine:
{code}
Expression$create("random", Expression$scalar(1))
# Expression
# random(1)
{code}
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