[jira] [Created] (FLINK-7777) Upgrade maven plugin japicmp version to 0.10.0

[Hai Zhou UTC+8 (JIRA)]

Hai Zhou UTC+8 created FLINK-:
-

 Summary: Upgrade maven plugin japicmp version to 0.10.0
 Key: FLINK-
 URL: https://issues.apache.org/jira/browse/FLINK-
 Project: Flink
  Issue Type: Bug
Affects Versions: 1.3.2
Reporter: Hai Zhou UTC+8
Priority: Minor
 Fix For: 1.4.0


Currently, flink used japicmp-maven-plugin version is 0.7.0, I'm getting these 
warnings from the maven plugin during a *mvn clean verify*:

{code:java}
[INFO] Written file '.../target/japicmp/japicmp.diff'.
[INFO] Written file '.../target/japicmp/japicmp.xml'.
[INFO] Written file '.../target/japicmp/japicmp.html'.
Warning:  org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser: Property 
'http://www.oracle.com/xml/jaxp/properties/entityExpansionLimit' is not 
recognized.
Compiler warnings:
  WARNING:  'org.apache.xerces.jaxp.SAXParserImpl: Property 
'http://javax.xml.XMLConstants/property/accessExternalDTD' is not recognized.'
Warning:  org.apache.xerces.parsers.SAXParser: Feature 
'http://javax.xml.XMLConstants/feature/secure-processing' is not recognized.
Warning:  org.apache.xerces.parsers.SAXParser: Property 
'http://javax.xml.XMLConstants/property/accessExternalDTD' is not recognized.
Warning:  org.apache.xerces.parsers.SAXParser: Property 
'http://www.oracle.com/xml/jaxp/properties/entityExpansionLimit' is not 
recognized.
{code}

japicmp fixed in version 0.7.1 : _Excluded xerces vom maven-reporting 
dependency in order to prevent warnings from SAXParserImpl. _

The current stable version is 0.10.0, we can consider upgrading to this version.




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[jira] [Created] (FLINK-7776) remove duplicate records in group aggregation

[Ruidong Li (JIRA)]

Ruidong Li created FLINK-7776:
-

 Summary: remove duplicate records in group aggregation
 Key: FLINK-7776
 URL: https://issues.apache.org/jira/browse/FLINK-7776
 Project: Flink
  Issue Type: Improvement
  Components: Table API & SQL
Reporter: Ruidong Li
Assignee: Ruidong Li


the current group aggregation will compare the last {{Row}} and current {{Row}} 
when {{generateRetraction}} is {{true}} and {{firstRow}} is {{false}} in 
{{GroupAggProcessFunction}},
this logic should be applied to all cases when {{firstRow}} is false



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