Dmitry Pavlov created IGNITE-28651:
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             Summary: Document Calcite SQL memory quotas in Ignite 2.x 
documentation
                 Key: IGNITE-28651
                 URL: https://issues.apache.org/jira/browse/IGNITE-28651
             Project: Ignite
          Issue Type: Improvement
          Components: documentation
            Reporter: Dmitry Pavlov
            Assignee: Dmitry Pavlov


Ignite 2.x documentation should describe Calcite SQL memory quotas in a 
separate documentation task.

The page should explain:
* what memory the Calcite-based SQL engine accounts for;
* global and per-query quota configuration;
* how quotas protect the Java heap from large sorts, joins, aggregations, and 
result materialization;
* how quota errors differ from JVM OutOfMemoryError;
* how to monitor and size quotas for production queries;
* how the page should be linked from SQL tuning and memory budget documentation.
 



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