> > *Presto Integration* >> >> If I understand correctly, there is no current support for reading >> Iceberg data directly from Presto. I imagine, however, that as long as your >> partition specifications are restricted to the `identity` transform it >> should be "easy" to consume an Iceberg table snapshot and register it as an >> external hive table complete with partition metadata. Am I missing any >> caveats there? >> > > Presto support has been posted in a PR: > https://github.com/prestodb/presto/pull/11767 > > Presto performance should be on par with Parquet tables in Presto because > we use the same vectorized read code. The implementation supports reading > from partitioned tables with either hidden or identity partitions. >
Can you clarify what is meant by "hidden" partitions? Will Presto integration be able to convert filter predicates to partition predicates for the partition transforms listed in the Iceberg table spec? For example, will filtering on a timestamp column be converted into correct partition predicates when data is partitioned by year/month?
