[jira] [Updated] (CALCITE-2311) case when returns redundant white space

2018-05-15 Thread pengzhiwei (JIRA)

 [ 
https://issues.apache.org/jira/browse/CALCITE-2311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

pengzhiwei updated CALCITE-2311:

Affects Version/s: (was: 1.1.0-incubating)
   1.12.0
Fix Version/s: (was: 1.12.0)
   1.17.0

> case when returns redundant white space
> ---
>
> Key: CALCITE-2311
> URL: https://issues.apache.org/jira/browse/CALCITE-2311
> Project: Calcite
>  Issue Type: Bug
>  Components: core
>Affects Versions: 1.12.0
>Reporter: pengzhiwei
>Assignee: Julian Hyde
>Priority: Major
> Fix For: 1.17.0
>
>
> If the case-when expression has two branches which returns string 
> literal,redundant white space will append to the short string literal  after 
> the ReduceExpressionsRule. For example:
> {code:java}
> case when id>0 then 'a' else 'abc' end{code}
> will actually be convert to 
> {code:java}
> case when id>0 then 'a  ' else 'abc' end{code}
>  
> The reason is that the type of  'a' is CHAR(1),but CHAR(3) for 'abc',so the 
> return type of  the case-when is CHAR(3). The RexBuilder#ensureType() method 
> append a cast convertion for 'a' to cast it to CHAR(3) type.The 
> ReduceExpressionsRule execute the cast convertion which fill two whilte space 
> to 'a'.



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[jira] [Updated] (CALCITE-2311) case when returns redundant white space

2018-05-15 Thread pengzhiwei (JIRA)

 [ 
https://issues.apache.org/jira/browse/CALCITE-2311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

pengzhiwei updated CALCITE-2311:

Fix Version/s: (was: 1.17.0)
   1.12.0

> case when returns redundant white space
> ---
>
> Key: CALCITE-2311
> URL: https://issues.apache.org/jira/browse/CALCITE-2311
> Project: Calcite
>  Issue Type: Bug
>  Components: core
>Affects Versions: 1.1.0-incubating
>Reporter: pengzhiwei
>Assignee: Julian Hyde
>Priority: Major
> Fix For: 1.12.0
>
>
> If the case-when expression has two branches which returns string 
> literal,redundant white space will append to the short string literal  after 
> the ReduceExpressionsRule. For example:
> {code:java}
> case when id>0 then 'a' else 'abc' end{code}
> will actually be convert to 
> {code:java}
> case when id>0 then 'a  ' else 'abc' end{code}
>  
> The reason is that the type of  'a' is CHAR(1),but CHAR(3) for 'abc',so the 
> return type of  the case-when is CHAR(3). The RexBuilder#ensureType() method 
> append a cast convertion for 'a' to cast it to CHAR(3) type.The 
> ReduceExpressionsRule execute the cast convertion which fill two whilte space 
> to 'a'.



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[jira] [Updated] (CALCITE-2311) case when returns redundant white space

2018-05-15 Thread pengzhiwei (JIRA)

 [ 
https://issues.apache.org/jira/browse/CALCITE-2311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

pengzhiwei updated CALCITE-2311:

Description: 
If the case-when expression has two branches which returns string 
literal,redundant white space will append to the short string literal  after 
the ReduceExpressionsRule. For example:
{code:java}
case when id>0 then 'a' else 'abc' end{code}
will actually be convert to 
{code:java}
case when id>0 then 'a  ' else 'abc' end{code}
 

The reason is that the type of  'a' is CHAR(1),but CHAR(3) for 'abc',so the 
return type of  the case-when is CHAR(3). The RexBuilder#ensureType() method 
append a cast convertion for 'a' to cast it to CHAR(3) type.The 
ReduceExpressionsRule execute the cast convertion which fill two whilte space 
to 'a'.

  was:
If case when has two brach which returns string literal,redundant white space 
will append to the short brach.For example:
{code:java}
case when id>0 then 'a' else 'abc' end{code}
will actually be convert to 
{code:java}
case when id>0 then 'a  ' else 'abc' end{code}
 


> case when returns redundant white space
> ---
>
> Key: CALCITE-2311
> URL: https://issues.apache.org/jira/browse/CALCITE-2311
> Project: Calcite
>  Issue Type: Bug
>  Components: core
>Affects Versions: 1.1.0-incubating
>Reporter: pengzhiwei
>Assignee: Julian Hyde
>Priority: Major
> Fix For: 1.17.0
>
>
> If the case-when expression has two branches which returns string 
> literal,redundant white space will append to the short string literal  after 
> the ReduceExpressionsRule. For example:
> {code:java}
> case when id>0 then 'a' else 'abc' end{code}
> will actually be convert to 
> {code:java}
> case when id>0 then 'a  ' else 'abc' end{code}
>  
> The reason is that the type of  'a' is CHAR(1),but CHAR(3) for 'abc',so the 
> return type of  the case-when is CHAR(3). The RexBuilder#ensureType() method 
> append a cast convertion for 'a' to cast it to CHAR(3) type.The 
> ReduceExpressionsRule execute the cast convertion which fill two whilte space 
> to 'a'.



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