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Posted to issues@ignite.apache.org by "Aleksey Plekhanov (Jira)" <ji...@apache.org> on 2021/07/30 07:16:00 UTC
[jira] [Updated] (IGNITE-14816) Calcite engine. Change TreeMap in
sorted IndexSpoolNode to ArrayList
[ https://issues.apache.org/jira/browse/IGNITE-14816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aleksey Plekhanov updated IGNITE-14816:
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Labels: calcite3-required (was: calcite2-required calcite3-required)
> Calcite engine. Change TreeMap in sorted IndexSpoolNode to ArrayList
> --------------------------------------------------------------------
>
> Key: IGNITE-14816
> URL: https://issues.apache.org/jira/browse/IGNITE-14816
> Project: Ignite
> Issue Type: Improvement
> Reporter: Aleksey Plekhanov
> Assignee: Pavel Pereslegin
> Priority: Minor
> Labels: calcite3-required
> Time Spent: 50m
> Remaining Estimate: 0h
>
> {{IgniteSortedIndexSpool}} assumes that the underlying input is already sorted, but the execution node creates {{TreeMap}} to find the rows (see {{IndexSpoolNode#createTreeSpool}}). This {{TreeMap}} can be replaced with {{ArrayList}} and binary search with the same efficiency for searching and lower costs for inserting data.
>
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