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https://issues.apache.org/jira/browse/FLINK-6968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16486829#comment-16486829
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ASF GitHub Bot commented on FLINK-6968:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/5688#discussion_r190141550
--- Diff:
flink-streaming-java/src/test/java/org/apache/flink/streaming/util/KeyedOneInputStreamOperatorTestHarness.java
---
@@ -78,6 +82,20 @@ public int numKeyedStateEntries() {
}
}
+ public <S extends State> S getState(K key, StateDescriptor<S, ?>
stateDesc) throws Exception {
--- End diff --
Is this change necessary? We should only modify code outside of
`flink-table` if it is urgently needed.
> Store streaming, updating tables with unique key in queryable state
> -------------------------------------------------------------------
>
> Key: FLINK-6968
> URL: https://issues.apache.org/jira/browse/FLINK-6968
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
> Reporter: Fabian Hueske
> Assignee: Renjie Liu
> Priority: Major
>
> Streaming tables with unique key are continuously updated. For example
> queries with a non-windowed aggregation generate such tables. Commonly, such
> updating tables are emitted via an upsert table sink to an external datastore
> (k-v store, database) to make it accessible to applications.
> This issue is about adding a feature to store and maintain such a table as
> queryable state in Flink. By storing the table in Flnk's queryable state, we
> do not need an external data store to access the results of the query but can
> query the results directly from Flink.
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