flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7208) Refactor build-in agg(MaxWithRetractAccumulator and MinWithRetractAccumulator) using the DataView
Date Tue, 04 Dec 2018 01:48:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16708067#comment-16708067
] 

ASF GitHub Bot commented on FLINK-7208:
---------------------------------------

sunjincheng121 commented on a change in pull request #7201: [FLINK-7208] [table] Optimize
Min/MaxWithRetractAggFunction with DataView
URL: https://github.com/apache/flink/pull/7201#discussion_r238504541
 
 

 ##########
 File path: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/aggfunctions/MinAggFunctionWithRetract.scala
 ##########
 @@ -18,19 +18,20 @@
 package org.apache.flink.table.functions.aggfunctions
 
 import java.math.BigDecimal
-import java.util.{HashMap => JHashMap}
-import java.lang.{Iterable => JIterable}
+import java.lang.{Iterable => JIterable, Long => JLong}
 import java.sql.{Date, Time, Timestamp}
 
-import org.apache.flink.api.common.typeinfo.{BasicTypeInfo, TypeInformation}
-import org.apache.flink.api.java.tuple.{Tuple2 => JTuple2}
-import org.apache.flink.api.java.typeutils.{MapTypeInfo, TupleTypeInfo}
-import org.apache.flink.table.api.Types
+import org.apache.flink.api.common.typeinfo.{BasicTypeInfo, TypeInformation, Types}
+import org.apache.flink.table.api.dataview.MapView
 import org.apache.flink.table.functions.aggfunctions.Ordering._
 import org.apache.flink.table.functions.AggregateFunction
 
 /** The initial accumulator for Min with retraction aggregate function */
-class MinWithRetractAccumulator[T] extends JTuple2[T, JHashMap[T, Long]]
+class MinWithRetractAccumulator[T] {
 
 Review comment:
   I think we should override the `getAccumulatorType` for both `MinWithRetractAggFunction`
and `MaxWithRetractAggFunction ` otherwise we will always use the memory.

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


> Refactor build-in agg(MaxWithRetractAccumulator and MinWithRetractAccumulator) using
the DataView
> -------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-7208
>                 URL: https://issues.apache.org/jira/browse/FLINK-7208
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API &amp; SQL
>            Reporter: kaibo.zhou
>            Assignee: Dian Fu
>            Priority: Major
>              Labels: pull-request-available
>
> Refactor build-in agg(MaxWithRetractAccumulator and MinWithRetractAccumulator) using
the DataView.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Mime
View raw message