yjshen opened a new issue #1861:
URL: https://github.com/apache/arrow-datafusion/issues/1861


   We have some TODO items while implementing row format, moved here for 
tracking purposes:
   
   - [ ] JIT the tuple field get/set with schema, avoid branching for each 
field in each row.
   - [ ] Null-bit free code path if the schema has no nullable fields.
   - [ ] Support more types. such as timestamp, etc.
   - [ ] Make varlena offset + length a type parameter for reader and writer, 
for space efficiency.
   - [ ] MutableRecordBatch could be moved to upstream arrow-rs.
   - [ ] For interpreted mode getters, and assertion based on schema before 
getting. Think `date64` as an example.
   


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