Yes can you explain why cluster config:

spark.sql.extensions org.apache.iceberg.spark.extensions.IcebergSparkSessionExtensions
spark.sql.catalog.spark_catalog.warehouse <s3>
spark.sql.catalog.spark_catalog org.apache.iceberg.spark.SparkCatalog
spark.sql.catalog.spark_catalog.catalog-impl org.apache.iceberg.aws.glue.GlueCatalog
spark.sql.catalog.spark_catalog.io-impl org.apache.iceberg.aws.s3.S3FileIO

enabling iceberg extension 1.6.1 and 1.8.1 is not working correctly on Databricks cluster (in my case cluster without unity catalog, shared compute 15.4 LTS)

How to correctly enable stored procedures in cluster SQL endpoint?