Dawid Wysakowicz created FLINK-17151:
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Summary: Align Calcite's and Flink's SYMBOL types
Key: FLINK-17151
URL: https://issues.apache.org/jira/browse/FLINK-17151
Project: Flink
Issue Type: Sub-task
Components: Table SQL / API
Reporter: Dawid Wysakowicz
Flink's `SymbolType` stores the class of the symbol. Calcite does not. When
converting from Flink's to Calcite's type we are loosing that information. We
should either remove that from the Flink's type or add it to Calcite's.
I am in favor of removing it from the {{SymbolType}}. This type is a pseudo
type which can be used only for literals. The symbol class is already part of
the corresponding value, therefore it is a redundant information in the type
itself.
Initial discussion:
https://github.com/apache/flink/pull/11694#discussion_r408058640
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