Made parquet_to_arrow_schema public

[martingallagher]

Exposes the utility function to go from parquet2's SchemaDescriptor to arrow2 Schema

Maybe a arrow2::schema::Schema::try_from_message is more desirable?

[codecov]

Codecov Report

Merging #1006 (8b127ce) into main (a810b03) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1006   +/-   ##
=======================================
  Coverage   71.44%   71.45%           
=======================================
  Files         356      356           
  Lines       19752    19758    +6     
=======================================
+ Hits        14112    14118    +6     
  Misses       5640     5640           

Impacted Files	Coverage Δ
src/io/parquet/read/schema/mod.rs	100.00% <ø> (ø)
src/compute/arithmetics/time.rs	25.68% <0.00%> (-0.92%)	⬇️
src/compute/aggregate/min_max.rs	75.36% <0.00%> (+1.11%)	⬆️
src/bitmap/utils/slice_iterator.rs	87.93% <0.00%> (+1.72%)	⬆️

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[jorgecarleitao]

Hey, thanks a lot for this!

Would it be possible to use pub use convert::parquet_to_arrow_schema instead? It makes it a bit easier to follow what is being exported exactly when reading the code.