liukun4515 opened a new issue, #4761:
URL: https://github.com/apache/arrow-datafusion/issues/4761
I try the comparison timestamp with date in the Spark, and find the
coerced type is timestamp.
```
spark-sql> explain extended select now()>cast('2000-01-01' as date);
== Parsed Logical Plan ==
'Project [unresolvedalias(('now() > cast(2000-01-01 as date)), None)]
+- OneRowRelation
== Analyzed Logical Plan ==
(now() > CAST(2000-01-01 AS DATE)): boolean
Project [(now() > cast(cast(2000-01-01 as date) as timestamp)) AS (now() >
CAST(2000-01-01 AS DATE))#49]
+- OneRowRelation
== Optimized Logical Plan ==
Project [true AS (now() > CAST(2000-01-01 AS DATE))#49]
+- OneRowRelation
== Physical Plan ==
*(1) Project [true AS (now() > CAST(2000-01-01 AS DATE))#49]
+- *(1) Scan OneRowRelation[]
```
cc @comphead @alamb
But current implementation of coerced type is date, we can fix this in the
follow up PR.
_Originally posted by @liukun4515 in
https://github.com/apache/arrow-datafusion/pull/4741#discussion_r1058277985_
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