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https://issues.apache.org/jira/browse/IGNITE-8600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov resolved IGNITE-8600.
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Resolution: Won't Fix
Not relevant at the moment. Will reopen if needed.
> SQL: lazy row materialization
> -----------------------------
>
> Key: IGNITE-8600
> URL: https://issues.apache.org/jira/browse/IGNITE-8600
> Project: Ignite
> Issue Type: Task
> Components: sql
> Affects Versions: 2.5
> Reporter: Vladimir Ozerov
> Priority: Major
> Labels: performance
>
> Currently our index cursor materializes rows as soon as they are encountered
> in an index page. This is necessary to protect ourselves from concurrent data
> modification. However, materialized rows might be filtered out later due to
> additional filters. In addition, there is a chance that only indexed fields
> is needed by query.
> We can do the following:
> 1) Introduce new mode that will return partially materialized rows, with only
> inline index fields initialized. When some non-initialized attribute is
> requested, we go to data page and materialize the whole row
> 2) Enable this mode for MVCC by default
> 3) Optionally enable this mode for non-MVCC read-only mode through additional
> flag.
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