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https://issues.apache.org/jira/browse/IMPALA-7368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Attila Jeges updated IMPALA-7368:
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Description:
DATE values describe a particular year/month/day, in the form YYYY-MM-DD. For
example, DATE '2013-01-01'. Date types do not have a time of day component.
The range of values supported for the Date type is 0000-01-01 to 9999-12-31.
The initial DATE type support should incluide the following changes:
- new internal type
- text scanner/writer
- casting between DATE and other types
- codegen infrastructure for expression evaluation
- "IS [NOT] NULL" and "[NOT] IN" predicates
- common comparison operators
- conditional functions
- infrastructure changes for builtin scalar functions.
These items are tightly coupled and it makes sense to implement them in one
change-set.
was:
DATE values describe a particular year/month/day, in the form YYYY-MM-DD. For
example, DATE '2013-01-01'. Date types do not have a time of day component.
The range of values supported for the Date type is 0000-01-01 to 9999-12-31.
The initial DATE type support should incluide the following changes:
- new internal type
- text scanner/writer
- casting between DATE and other types
- expression evaluation
- "IS [NOT] NULL" and "[NOT] IN" predicates
- common comparison operators
- conditional functions
- infrastructure changes for builtin scalar functions.
These items are tightly coupled and it makes sense to implement them in one
change-set.
> Add initial support for DATE type
> ---------------------------------
>
> Key: IMPALA-7368
> URL: https://issues.apache.org/jira/browse/IMPALA-7368
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Attila Jeges
> Assignee: Attila Jeges
> Priority: Major
>
> DATE values describe a particular year/month/day, in the form YYYY-MM-DD.
> For example, DATE '2013-01-01'. Date types do not have a time of day
> component. The range of values supported for the Date type is 0000-01-01 to
> 9999-12-31.
> The initial DATE type support should incluide the following changes:
> - new internal type
> - text scanner/writer
> - casting between DATE and other types
> - codegen infrastructure for expression evaluation
> - "IS [NOT] NULL" and "[NOT] IN" predicates
> - common comparison operators
> - conditional functions
> - infrastructure changes for builtin scalar functions.
> These items are tightly coupled and it makes sense to implement them in one
> change-set.
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