Maksim Zhuravkov created IGNITE-20083:
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Summary: Sql. Investigate cost calculation for MAP/REDUCE
aggregate.
Key: IGNITE-20083
URL: https://issues.apache.org/jira/browse/IGNITE-20083
Project: Ignite
Issue Type: Improvement
Components: sql
Affects Versions: 3.0.0-beta1
Reporter: Maksim Zhuravkov
After removing complex objects between MAP/REDUCE phase cost computations were
changed and some plans that selected MAP/REDUCE aggregates are now select
colocated aggregations or exchange is moved prior to MAP phase, and not
inserted MAP/REDUCE phases.
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