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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/07/03 16:44:00 UTC
[jira] [Commented] (FLINK-6649) Improve Non-window group aggregate
with configurable `earlyFire`.
[ https://issues.apache.org/jira/browse/FLINK-6649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16072691#comment-16072691 ]
ASF GitHub Bot commented on FLINK-6649:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/4157#discussion_r125284189
--- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/aggregate/GroupAggProcessFunctionWithUpdateInterval.scala ---
@@ -0,0 +1,204 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.flink.table.runtime.aggregate
+
+import java.lang.{Long => JLong}
+
+import org.apache.flink.api.common.ExecutionConfig
+import org.apache.flink.api.common.state.{ValueState, ValueStateDescriptor}
+import org.apache.flink.api.common.typeutils.TypeSerializer
+import org.apache.flink.api.java.typeutils.RowTypeInfo
+import org.apache.flink.configuration.Configuration
+import org.apache.flink.streaming.api.functions.ProcessFunction
+import org.apache.flink.table.api.{StreamQueryConfig, Types}
+import org.apache.flink.table.codegen.{Compiler, GeneratedAggregationsFunction}
+import org.apache.flink.table.runtime.types.CRow
+import org.apache.flink.types.Row
+import org.apache.flink.util.Collector
+import org.slf4j.{Logger, LoggerFactory}
+
+/**
+ * Aggregate Function used for the groupby (without window) aggregate
+ * with update interval config.
+ *
+ * @param genAggregations Generated aggregate helper function
+ * @param aggregationStateType The row type info of aggregation
+ * @param outputRowType The row type info of output.
--- End diff --
Add remaining parameters as well
> Improve Non-window group aggregate with configurable `earlyFire`.
> -----------------------------------------------------------------
>
> Key: FLINK-6649
> URL: https://issues.apache.org/jira/browse/FLINK-6649
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Affects Versions: 1.4.0
> Reporter: sunjincheng
> Assignee: sunjincheng
>
> Currently, Non-windowed group aggregate is earlyFiring at count(1), that is every row will emit a aggregate result. But some times user want config count number (`early firing with count[N]`) , to reduce the downstream pressure. This JIRA. will enable the config of e`earlyFiring` for Non-windowed group aggregate.
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