Hi, I have a question about this portion of code: https://github.com/apache/arrow/blob/bae33d622421e6377ab3e9c81dd054c796ab48a3/java/vector/src/main/codegen/templates/MapWriters.java#L174
Why converting all field names to lower case? My testing code ran into problem when the schema has two columns with names that have same letters but in different cases. E.g. "double" vs "Double"? Thanks, Jingyuan
