Trino + Iceberg + Nessie REST + Minio: DROP TABLE does not delete files

[ziggekatten]

We are running an PoC (version 475), and I can see that when dropping an table in my Iceberg catalog, the files in my MinIO bucket are not deleted.

The creation of schema and tables is basic ones without specified location on nether CREATE SCHEMA or CREATE TABLE.

Also, I can see that the connector does not respect the iceberg.unique-table-location=false setting, whereas our delta-lake + Hive setup does.

Fond some vague discussions around this, but no documentation around any settings.

Am I missing something?

[ajaysunnydk]

Hi @ziggekatten,

I need some help here, We're currently running a PoC using Delta Lake + Hive Metastore on Trino 440, and we're observing something different: when we drop tables, the metadata entry is removed from Hive, but the physical data files on disk (HDFS) remain untouched. That is, Trino successfully drops the table, but does not delete the directory or its contents.

You're mentioning that Delta Lake in your case does remove the files — could you help here please.