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Konstantin Orlov commented on IGNITE-13543: ------------------------------------------- [~tledkov-gridgain], I left few comment, please see PR > Calcite integration. Sort-based aggregates > ------------------------------------------ > > Key: IGNITE-13543 > URL: https://issues.apache.org/jira/browse/IGNITE-13543 > Project: Ignite > Issue Type: New Feature > Components: sql > Reporter: Yury Gerzhedovich > Assignee: Taras Ledkov > Priority: Critical > Original Estimate: 80h > Time Spent: 0.5h > Remaining Estimate: 79.5h > > To have a performance boost need to implement merge aggregates. > The merge aggregate is applied for sorted input of the aggregate. > In this case only one aggregation group is stored at the memory. > Also the input of the aggregate may be sorted by force. -- This message was sent by Atlassian Jira (v8.3.4#803005)