[jira] [Created] (IGNITE-20454) Sql. Extend SQL cursor with ability to check if first page is ready

["Konstantin Orlov (Jira)" <ji...@apache.org>]

Konstantin Orlov created IGNITE-20454:
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             Summary: Sql. Extend SQL cursor with ability to check if first page is ready
                 Key: IGNITE-20454
                 URL: https://issues.apache.org/jira/browse/IGNITE-20454
             Project: Ignite
          Issue Type: Improvement
          Components: sql
            Reporter: Konstantin Orlov


For multi statement queries, in order to advance to the next statement we have to get sure that the first page of result for current statement is ready to be served. This allows not to depend on a user and finish the script even if no one consumes the results.

Definition of done: there is an API available from within {{SqlQueryProcessor}} such that will allow to be notified about completion of prefetch ({{AsyncRootNode#prefetch}}).



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