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https://issues.apache.org/jira/browse/IGNITE-18390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Plekhanov updated IGNITE-18390:
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Labels: calcite calcite2-required ise (was: calcite calcite2-required)
> Calcite engine. Reduce count of created spools during planning
> --------------------------------------------------------------
>
> Key: IGNITE-18390
> URL: https://issues.apache.org/jira/browse/IGNITE-18390
> Project: Ignite
> Issue Type: Improvement
> Reporter: Aleksey Plekhanov
> Assignee: Aleksey Plekhanov
> Priority: Major
> Labels: calcite, calcite2-required, ise
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently, when trying to convert traits table spool is created for each
> exchange node, but not always required. Root node not required to be
> rewindable, rewindability is required only on the right hand of correlated
> nested loop node, but rewindability trait is propagated from the bottom nodes
> (table and index scans) to the top nodes and all nodes are converted to
> rewindable, this cause redundant spool creation.
> Investigate posibility to reduce count of table spools to reduce planning
> time.
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