Denys Kuzmenko created HIVE-27160: ------------------------------------- Summary: Iceberg: Optimise delete (entire) data from table Key: HIVE-27160 URL: https://issues.apache.org/jira/browse/HIVE-27160 Project: Hive Issue Type: Task Reporter: Denys Kuzmenko
Currently, in MOR mode, Hive creates "positional delete" files during deletes. With "Delete from ", the entire dataset in the table or partition is written as a "positional delete" file. During the read operation, all these files are read again causing huge delay. Proposal: apply "truncate" optimization in case of "delete *". -- This message was sent by Atlassian Jira (v8.20.10#820010)