[IMPALA-12991] Eliminate unnecessary SORT for Iceberg DELETEs

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.4.0
• Component/s: Frontend
• Labels: impala-iceberg
• Epic Color: ghx-label-4
• Assignee: Zoltán Borók-Nagy
• Reporter: Zoltán Borók-Nagy
• Created: 10/Apr/24 16:10
• Updated: 12/Apr/24 11:36
• Resolved: 12/Apr/24 11:36

Description

Since we are useing IcebergBufferedDeleteSink, which sorts the data before flushing, there is no need to add a SORT node before the sink.