ExecNodes' factory functions are confusingly non-uniform, which means a lot of boilerplate when composing them into even a simple ExecPlan. Providing a standard factory interface for these and a registry in which to store them by name will simplify declaration of ExecPlans.

Reporter: Ben Kietzman / @bkietz
Assignee: Ben Kietzman / @bkietz

Related issues:

• [C++] Query engine umbrella issue (is a child of)

PRs and other links:

• GitHub Pull Request #10793

_{Note: This issue was originally created as ARROW-13482. Please see the migration documentation for further details.}