Migrating plain parquet tables to iceberg

[Kruger, Scott]

I’m looking to migrate a partitioned parquet table to use iceberg. The issue 
I’ve run into is that the column order for the data varies wildly, which isn’t 
a problem for us normally (we just set mergeSchemas=true when reading), but 
presents a problem with iceberg because the iceberg.schema field isn’t set in 
the parquet footer. Is there any way to migrate this data over without 
rewriting the entire dataset?