[EPIC] A Collection of Bugs that would be good to look at (TM)

[alamb]

Is your feature request related to a problem or challenge?

There are many issues / bugs flying around that I am losing track of. This issue lists a bunch of them I am keeping my eye on

Of course it would be great to have other people help look at / suggest other things for this list

• Querying Parquet file specifically with a predicate returns invalid data error but works in other situations #14281
• Incorrect result for IS NOT NULL predicate over UNION ALL query #14352
• Invalid query result when searched CASE has nullable condition and boolean result #14343
• Case coercion of Structs loses field names  #14383

[alamb]

Let's use the release tickets for this instead:

• Release DataFusion 46.0.0 #14123