Weston Pace created ARROW-15967:
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Summary: [C++] Return a nice error if the user types the wrong
node name in an exec plan
Key: ARROW-15967
URL: https://issues.apache.org/jira/browse/ARROW-15967
Project: Apache Arrow
Issue Type: New Feature
Components: C++
Reporter: Weston Pace
When writing code to generate exec plans we often write something like...
{noformat}
MakeExecNodeOrStop("write", plan.get(), {table}, options);
{noformat}
A few times now a user has (possibly via copy / paste) written the wrong node
(e.g. "sink" instead of "write") and when that happens we try and do a checked
cast on the options (e.g. to WriteNodeOptions) and this raises an exception.
We should do a safer cast and return an invalid status with a nice message.
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