Konstantin Orlov created IGNITE-20020:
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             Summary: Sql. Support system views in planner
                 Key: IGNITE-20020
                 URL: https://issues.apache.org/jira/browse/IGNITE-20020
             Project: Ignite
          Issue Type: Improvement
          Components: sql
            Reporter: Konstantin Orlov


First part of integration system views with sql engine is a support them in 
planner. 

A few things to keep in mind:
* system views are not updatable -- attempt to execute DML over system view 
must result in validation error.
* cluster views and node views have different distribution function -- every 
type of view must be covered with decent set of tests, including tests on 
colocation-related algorithms



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