[jira] [Created] (IGNITE-10253) Merge SqlQuery logic with SqlFieldsQuery

["Vladimir Ozerov (JIRA)" <ji...@apache.org>]

Vladimir Ozerov created IGNITE-10253:
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             Summary: Merge SqlQuery logic with SqlFieldsQuery
                 Key: IGNITE-10253
                 URL: https://issues.apache.org/jira/browse/IGNITE-10253
             Project: Ignite
          Issue Type: Task
          Components: sql
            Reporter: Vladimir Ozerov
            Assignee: Vladimir Ozerov
             Fix For: 2.8


Currently execution of {{SqlQuery}} query is very non-trivial. First, it is complex to understand. Second, it duplicates code. Third, the most important - it is buggy. Because when new logic is added to {{SqlFieldsQuery}} it is not added to {{SqlQuery}} with high probability. Moreover, we even have discrepancies between local and non-local modes. E.g. it has different value conversion logic. 

We need to do the following:
1) Remove all {{SqlQuery}}-specific logic from {{GridQueryProcessor}} and {{IgniteH2Indexing}}
2) Make {{SqlQuery}} work as follows: 
- generate {{SqlFieldsQuery}} from {{SqlQuery}}
- execute it
- convert results to K-V pairs



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