liukun4515 commented on code in PR #4741:
URL: https://github.com/apache/arrow-datafusion/pull/4741#discussion_r1057666532
##########
datafusion/expr/src/type_coercion/binary.rs:
##########
@@ -575,6 +575,7 @@ fn temporal_coercion(lhs_type: &DataType, rhs_type:
&DataType) -> Option<DataTyp
},
(Timestamp(_, tz), Utf8) => Some(Timestamp(TimeUnit::Nanosecond,
tz.clone())),
(Utf8, Timestamp(_, tz)) => Some(Timestamp(TimeUnit::Nanosecond,
tz.clone())),
+ // TODO: need to investigate the result type for the comparison
between timestamp and date
Review Comment:
https://github.com/apache/arrow-datafusion/issues/4644#issuecomment-1365869161
we need to get the behavior for the comparison in the PG.
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