[jira] [Created] (IGNITE-11250) create affinity key index only when it required

["Yury Gerzhedovich (JIRA)" <ji...@apache.org>]

Yury Gerzhedovich created IGNITE-11250:
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             Summary: create affinity key index only when it required
                 Key: IGNITE-11250
                 URL: https://issues.apache.org/jira/browse/IGNITE-11250
             Project: Ignite
          Issue Type: Task
          Components: sql
            Reporter: Yury Gerzhedovich
            Assignee: Yury Gerzhedovich


We shouldn't create AFFINITY_KEY index in case we already have PK INDEX which has first column the same as affinity column.

As of now we have similar optimization: check all indexes to start on affinity column, however it doesn't work, due to affinity key index creating during create system indexes and no any indexes exist for a table for the moment. We just have prepared PK indexes, which should be checked. In case first column PK indexes equals to affinity column, then affinity index shouldn't be created

see org.apache.ignite.internal.processors.query.h2.H2TableDescriptor#createSystemIndexes

The task may be better to do together with IGNITE-11125, due to, seems, both of them required compatibility changes.



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