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Posted to issues-all@impala.apache.org by "Attila Jeges (JIRA)" <ji...@apache.org> on 2019/04/30 13:34:00 UTC

[jira] [Closed] (IMPALA-7368) Add initial support for DATE type

     [ https://issues.apache.org/jira/browse/IMPALA-7368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Attila Jeges closed IMPALA-7368.
--------------------------------

> 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
> - casting between DATE and other types
> - codegen infrastructure for expression evaluation
> - "IS [NOT] NULL" and "[NOT] IN" predicates
> - common comparison operators 
> - BETWEEN operator
> - conditional functions
> - infrastructure changes for builtin scalar functions.
> - some built-in functions: aggregate functions, analytical functions, math functions.
> - support partitioning.
> - text support only.
> These items are tightly coupled and it makes sense to implement them in one change-set.



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