jayzhan211 commented on code in PR #14440:
URL: https://github.com/apache/datafusion/pull/14440#discussion_r1948036125


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datafusion/common/src/types/builtin.rs:
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@@ -47,3 +49,11 @@ singleton!(LOGICAL_FLOAT64, logical_float64, Float64);
 singleton!(LOGICAL_DATE, logical_date, Date);
 singleton!(LOGICAL_BINARY, logical_binary, Binary);
 singleton!(LOGICAL_STRING, logical_string, String);
+
+// TODO: Extend macro
+// TODO: Should we use LOGICAL_TIMESTAMP_NANO to distinguish unit and timzeone?

Review Comment:
   TypeSignatureClass::Timestamp acts as a wildcard, covering all possible 
units and timezones. If you're considering introducing a similar concept in 
NativeType, we should also discuss whether we need to include Numeric, Integer, 
or Float as part of it.



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