[
https://issues.apache.org/jira/browse/CALCITE-3433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Danny Chen updated CALCITE-3433:
--------------------------------
Description:
sql
{code: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)
{code}
answer is false
but
sql
{code:sql}
select time0 = time1
from
(select
timestamp'2000-12-30 21:07:32' as time0,
timestamp'2000-12-30 21:07:32'as time1)
{code}
answer is true
was:
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
> 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: 1h
> Remaining Estimate: 0h
>
> sql
> {code: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)
> {code}
> answer is false
> but
> sql
> {code:sql}
> select time0 = time1
> from
> (select
> timestamp'2000-12-30 21:07:32' as time0,
> timestamp'2000-12-30 21:07:32'as time1)
> {code}
> answer is true
>
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