Maksim Zhuravkov created IGNITE-21558:
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             Summary: Sql. Remove ExecutionContext dependency from 
ExpressionFactory.
                 Key: IGNITE-21558
                 URL: https://issues.apache.org/jira/browse/IGNITE-21558
             Project: Ignite
          Issue Type: Improvement
          Components: sql
            Reporter: Maksim Zhuravkov
             Fix For: 3.0.0-beta2


At the moment ExpressionFactory depends on `ExecutionContext`, so it is not 
possible to compile expressions prior to execution. 

Let's remove `ExecutionContext ` dependency from `ExpressionFactory`  and make 
it a standalone component that is created per SQL engine instance. In addition 
to that, static expression cache of compiled expressions should also be removed.



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