Use GlueContext.getSink for writing Apache Iceberg table to S3 bucket and Data Catalog

Hello,

As per the doc there are only two ways to update the schema 1.getSink() and 2.from_catalog() automatically from an AWS Glue Job and your job needs to use the Iceberg connection or Iceberg jars.

getSink() does not support market place connections. Reference

from_catalog() needs to read the metadata like classification or connection from the existing iceberg table. However, if you are creating iceberg tables from Athena as shown here . This method does not work as well. Reference

So, the only way I could see is to use from_options() method and use Spark dataframes to write to your Iceberg table.

Schema evolution for Iceberg tables are documented here and using Athena here