[ https://issues.apache.org/jira/browse/FLINK-5695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16061625#comment-16061625 ]
ASF GitHub Bot commented on FLINK-5695: --------------------------------------- Github user sunjincheng121 closed the pull request at: https://github.com/apache/flink/pull/3248 > 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} > What do you think? [~fhueske] -- This message was sent by Atlassian JIRA (v6.4.14#64029)