timsaucer commented on PR #15646:
URL: https://github.com/apache/datafusion/pull/15646#issuecomment-2790515046
I have updated the PR to use `Field` instead of metadata `HashMap`. In doing so we can now use extension types directly. I've added a
second unit test that uses extension types, bot
paleolimbot commented on PR #15646:
URL: https://github.com/apache/datafusion/pull/15646#issuecomment-2790143960
Just a link to my experiments starting from the Expr enum in case they are
useful! https://github.com/apache/datafusion/pull/15036
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timsaucer commented on PR #15646:
URL: https://github.com/apache/datafusion/pull/15646#issuecomment-2789600400
Some of the concerns I have:
- Canonical extension types in `arrow-rs` have an implementation of `
TryFrom<&Field>` which lends towards the original Issue's suggestion of pas
timsaucer opened a new pull request, #15646:
URL: https://github.com/apache/datafusion/pull/15646
## Which issue does this PR close?
- Closes #14247 but it is a different solution than requested
## Rationale for this change
We have many users who wish to use extension dat
