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https://issues.apache.org/jira/browse/CALCITE-3433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16960957#comment-16960957
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Danny Chen edited comment on CALCITE-3433 at 10/28/19 11:46 AM:
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Thanks [~donnyzone], can we gen code without
{code:java}
inp0_ == null || inp1_ == null ? (Boolean) null
{code}
It seems that for EQUALS and NOT EQUALS, this "null check" is redundant and
unnecessary.
was (Author: danny0405):
Thanks [~donnyzone], can we gen code with out
{code:java}
inp0_ == null || inp1_ == null ? (Boolean) null
{code}
It seems that for EQUALS and NOT EQUALS, this "null check" is redundant and
unnecessary.
> EQUALS operator between date/timestamp types returns false if the type is
> nullable
> ----------------------------------------------------------------------------------
>
> Key: CALCITE-3433
> URL: https://issues.apache.org/jira/browse/CALCITE-3433
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.17.0, 1.18.0, 1.19.0, 1.20.0, 1.21.0
> Reporter: jiezouSH
> Assignee: Feng Zhu
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> sql
> select time0=time1 from (select timestamp'2000-12-30 21:07:32'as
> time0,timestamp'2000-12-30 21:07:32'as time1 union all select cast(null as
> timestamp) as time0,cast(null as timestamp) as time1) calcs
> answer is false
> but
> sql
> select time0=time1 from (select timestamp'2000-12-30 21:07:32'as
> time0,timestamp'2000-12-30 21:07:32'as time1) calcs
> answer is true
>
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