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https://issues.apache.org/jira/browse/IGNITE-13670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrey Mashenkov reassigned IGNITE-13670:
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Assignee: Andrey Mashenkov
> Skip writing null-map and varlen table when possible
> ----------------------------------------------------
>
> Key: IGNITE-13670
> URL: https://issues.apache.org/jira/browse/IGNITE-13670
> Project: Ignite
> Issue Type: Improvement
> Reporter: Alexey Goncharuk
> Assignee: Andrey Mashenkov
> Priority: Major
> Labels: iep-54, ignite-3, newbie
>
> h3. Motivation.
> The nullmap is currently always written to the tuple layout for all columns
> even if there are no nullable columns described in the schema.
> The same is true and can be done for varlen table.
> Seems, we can extend this idea to every single tuple and still have the
> ability to compare key/value content fast as byte arrays.
> Apparently, this will work for rows of same schema version, but we shouldn't
> bother about the schema version,
> because anyway, old row will be upgraded to the newer version before
> comparison according to the live-schema concept.
> h3. Description.
> Let's skip an empty nullmap and write just a flag instead.
> Let's skip an empty varlen table and write just a flag instead.
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