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https://issues.apache.org/jira/browse/IGNITE-20231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yury Gerzhedovich updated IGNITE-20231:
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Summary: Sql. Statistics designe. (was: Sql. Resolve dependencies before
query planning.)
> Sql. Statistics designe.
> ------------------------
>
> Key: IGNITE-20231
> URL: https://issues.apache.org/jira/browse/IGNITE-20231
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Andrey Mashenkov
> Priority: Major
> Labels: ignite-3
>
> As for now, we resolve dependencies after cutting a query plan into fragments.
> After switching to Catalog, we will have no real tables/indexes available at
> planning stage (just descriptors). Planner requires table statistics, which
> is broken after switching to the Catalog.
> Let's resolve all the dependencies before start planner to fix table
> statistics.
> Also, ExecutableTableImpl instantiates ScannableTable and UpdatableTable
> regardless if the table is used for scan or update. Let's make lazy
> instantiation.
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