Support adding parquet files to partitioned table

[jonathanc-n]

Looking at the type_to_literal function, I think this is correct. We don't want to set default values in the partition spec. I think there are two options:

• Don't allow appending to partitioned tables for now and add logic to infer the partitions in a later PR.
• Marking the data-file as unpartitioned

Originally posted by @Fokko in #960 (comment)

Support adding parquet files to partitioned tables as is mentioned by @Fokko here

[jonathanc-n]

I can also work on this

[liurenjie1024]

I can also work on this

Thanks !

[liurenjie1024]

cc @jonathanc-n Do you think it's better to move it to 0.6.0 milestone?

[jonathanc-n]

Yes, I think #1116 is quite a large blocker. I can put a note with the function and we can move onto putting out the next release.