[ https://issues.apache.org/jira/browse/FLINK-23544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17409353#comment-17409353 ]
godfrey he commented on FLINK-23544: ------------------------------------ Revert in master: 68a29f3c4acced62a1c76a0e9c09562b42cb7534 Revert in 1.14.0: 54fa64863f9e278ceddc8d294568e56350d9f545 > Window TVF Supports session window > ---------------------------------- > > Key: FLINK-23544 > URL: https://issues.apache.org/jira/browse/FLINK-23544 > Project: Flink > Issue Type: Sub-task > Components: Table SQL / Planner > Reporter: JING ZHANG > Assignee: JING ZHANG > Priority: Minor > Labels: pull-request-available > Fix For: 1.14.0 > > > Window TVF would support SESSION window in the following case: > # SESSION Window TVF followed by Window Aggregate, in this case SESSION > window TVF would be pulled up into WindowAggregate, so Window assigner would > happen in WindowAggrgeate > > *Note, SESSION window TVF only works in limited cases currently, the > following user cases is not supported yet:* > # *SESSION WINDOW TVF followed by Window JOIN* > # *SESSION WINDOW TVF followed by Window RANK*** > *BESIDES, SESSION window Aggregate does not support the following performance > improvement yet:* > 1. Split Distinct Aggregation > 2. Local-global Aggregation > 3. Mini-batch Aggregate -- This message was sent by Atlassian Jira (v8.3.4#803005)