[IMPALA-10153] Support time travel for Iceberg tables

• Type: New Feature
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Component/s: Frontend
• Labels: impala-iceberg
• Epic Link: Iceberg support in Impala
• Epic Color: ghx-label-1
• Assignee: Gabor Kaszab
• Reporter: Zoltán Borók-Nagy
• Created: 08/Sep/20 09:14
• Updated: 30/Jan/23 18:35

Description

Iceberg tables support snapshots/data versioning/time travel.

It means we can query an older version of the table.

Probably we'll need to extend Impala's SQL syntax to support such queries (Hive will also support such queries, so we should use the same syntax).

Issue Links

• is a parent of: IMPALA-11835 Document that Iceberg Time Travel queries use the old schema
• relates to: IMPALA-9773 Kudu temporal (AS OF) queries

Sub-Tasks

• Add tests for table maintenance + time travel: Open