[IGNITE-20095] Sql. Map part of MAP/REDUCE aggregate sometimes can not be moved past Exchange.

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Component/s: sql
• Labels: ignite-3
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Unassigned
• Reporter: Maksim Zhuravkov
• Created: 28/Jul/23 15:36
• Updated: 08/Apr/24 10:59
• Resolved: 08/Apr/24 10:58

Description

See examples in MapReduceSortAggregatePlannerTest.
Looks like, Map aggregate can't utilize sorting from the input in some cases.

Issue Links

• is fixed by: IGNITE-21580 Sql. Unable to optimise query using only two phase aggregates