Cannot convert Expr to InList about datafusion-python

[HuashiSCNU0303]

Just for my own education, what are the use cases for invoking .to_variant()? I came across these when I was working on python wrapper functions and I don't know how people are using these objects. Can you help me understand why we would want to do this traversal? I'm going to tackle exposing all of those variants in #767 and the better I can understand the user needs, the better I can make sure I'm getting them covered. Thank you!

Thanks for your support. I would like to implement a custom query optimizer based on the LogicalPlan generated by Datafusion. It needs to obtain expressions within the LogicalPlan (such as filter and join conditions), and then process them differently according to the type of expression (such as In, Like, Cast, etc.). However, implementing it with string matching is very difficult because many edge cases need to be considered. Therefore, I hope to use to_variant() to conveniently perform type checks and extract specific fields of different types of expressions.

[HuashiSCNU0303]

I use datafusion 39.0.0 in Python 3.10.11.

[timsaucer]

Just for my own education, what are the use cases for invoking .to_variant()? I came across these when I was working on python wrapper functions and I don't know how people are using these objects. Can you help me understand why we would want to do this traversal? I'm going to tackle exposing all of those variants in #767 and the better I can understand the user needs, the better I can make sure I'm getting them covered. Thank you!