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Complete support for Expr --> String  #9726

@alamb

Description

@alamb

Part of #9494

Is your feature request related to a problem or challenge?

This ticket tracks the remaining work to complete #9495

As @devinjdangelo says in #9494 (comment)

We now have a solid foundation for converting Exprs --> SQL (see #9495 for why this is valuable).

It should now be straightforward to add support for the remaining Expr types and doing so is a great way to get more familiar with DataFusion's core data structures and optimization algorithms without already having expertise in database internals.

Describe the solution you'd like

The basic task is to:

  1. Pick one (or a few) of the expressions below
  2. Create a PR to Implement the Expr --> AST reverse code (in this match statement)
  3. Add a test (for example, here)

Here is the remaining list of exprs (just note on the ticket which you plan to work on)

Describe alternatives you've considered

No response

Additional context

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