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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