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From "sunjincheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-5695) Optimize table type systems based on database semantics
Date Wed, 01 Feb 2017 15:59:51 GMT

     [ https://issues.apache.org/jira/browse/FLINK-5695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

sunjincheng updated FLINK-5695:
-------------------------------
    Description: 
Optimize table type systems based on database semantics.As follows:
{code}
             groupBy
         -------------------->
Table                             GroupedTable
  ∧   <--------------------           ∧
   |         select&agg                |
   |                                           |
   | where                                |
   | select                                | groupBy
   | agg                                   |
   | ...                                      |
   |             window                 |
  ∨     --------------------->     
 Table                            WindowedTable
          <---------------------
              select&over
{code}
So, I want remove  table Type "WindowGroupedTable".
What do you think? [~fhueske] 

  was:
Optimize table type systems based on database semantics.As follows:
{code}
             groupBy
         -------------------->
Table                             GroupedTable
  ∧   <--------------------           ∧
   |         select&agg                |
   |                                           |
   | where                                |
   | select                                | groupBy
   | agg                                   |
   | ...                                      |
   |             window                 |
  ∨     --------------------->     
 Table                            WindowedTable
          <---------------------
              select&over
{code}
So, I want remove  table Type "WindowGroupedTable".


> Optimize table type systems based on database semantics
> -------------------------------------------------------
>
>                 Key: FLINK-5695
>                 URL: https://issues.apache.org/jira/browse/FLINK-5695
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API & SQL
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>
> Optimize table type systems based on database semantics.As follows:
> {code}
>              groupBy
>          -------------------->
> Table                             GroupedTable
>   ∧   <--------------------           ∧
>    |         select&agg                |
>    |                                           |
>    | where                                |
>    | select                                | groupBy
>    | agg                                   |
>    | ...                                      |
>    |             window                 |
>   ∨     --------------------->     
>  Table                            WindowedTable
>           <---------------------
>               select&over
> {code}
> So, I want remove  table Type "WindowGroupedTable".
> What do you think? [~fhueske] 



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