Make `CommonSubexprEliminate` top-down like (#11683) · apache/datafusion@b5d7931 · GitHub

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Make CommonSubexprEliminate top-down like (#11683)

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* Make `CommonSubexprEliminate` top-down like

* fix top-down recursion, fix unit tests to use real a Optimizer to verify behavior on plans

* Extract result of `find_common_exprs` into a struct (#4)

* Extract the result of find_common_exprs into a struct

* Make naming consistent

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Co-authored-by: Andrew Lamb <[email protected]>

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peter-toth and alamb authored Aug 9, 2024

1 parent 7c41323 commit b5d7931