Kirill Tkalenko created IGNITE-29003:
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             Summary: SQL Calcite: Support scalar subqueries in table function 
arguments
                 Key: IGNITE-29003
                 URL: https://issues.apache.org/jira/browse/IGNITE-29003
             Project: Ignite
          Issue Type: Improvement
            Reporter: Kirill Tkalenko
            Assignee: Kirill Tkalenko


Apache Ignite currently uses Calcite 1.42, which does not support scalar 
subqueries passed as table function arguments.

For example:
{code:java}
SELECT * FROM TABLE(my_table_function((SELECT value FROM source), 20)); {code}
The corresponding support was added to Calcite 1.43 under CALCITE-7688. 
Backport this functionality to the Ignite Calcite module using an isolated 
planner rule so that it can be easily removed after upgrading to Calcite 1.43.



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