Github user maropu commented on the issue:
https://github.com/apache/spark/pull/20433
I was thinking we added a temporary rule in `SqlBase.g`:
https://github.com/apache/spark/pull/20433/commits/5ee6f897bc71eac24e086f39549ef3a396059b4d
But, I have no strong reason to add this in 2.x, so I follow you.
Could you set 3.0 at the target in the jira?
BTW, is this a bug in master?
https://github.com/apache/spark/blob/master/sql/core/src/test/resources/sql-tests/results/literals.sql.out#L328
Probably, I think this fix seems to be related to this bug:
https://github.com/apache/spark/pull/20433/files#diff-16d8dfddab6ffbffb4204a6955ce3d26R158
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