Maksim Zhuravkov created IGNITE-20239:
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Summary: Sql. SetOpConverterRule.
Key: IGNITE-20239
URL: https://issues.apache.org/jira/browse/IGNITE-20239
Project: Ignite
Issue Type: Improvement
Components: sql
Reporter: Maksim Zhuravkov
Fix For: 3.0.0-beta2
`SetOpConverterRule` creates a rowType produced by set operation by means of
`TypeFactory::leastRestrictiveType`. This should not be necessary because the
types of rows returned by inputs to set operation should have been already been
coerced at the validation stage by `SqlValidator`/ SetopOperandTypeChecker`.
Remove calls to `TypeFactory::leastRestrictiveType` from `SetOpConverterRule`
for both colocated and map/reduce versions of operators and use `rowType`
returned by a set operator node.
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