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https://issues.apache.org/jira/browse/FLINK-4062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15352754#comment-15352754
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ASF GitHub Bot commented on FLINK-4062:
---------------------------------------
Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/2154#discussion_r68732224
--- Diff: docs/apis/streaming/windows.md ---
@@ -24,1023 +24,593 @@ specific language governing permissions and
limitations
under the License.
-->
+Flink uses a concept called *windows* to divide a (potentially) infinite
`DataStream` into slices
+based on the timestamps of elements or other criteria. This division is
required when working
+with infinite streams of data and performing transformations that
aggregate elements.
+
+<span class="label label-info">Info</span> We will mostly talk about
*keyed windowing* here, this
--- End diff --
changing
> Update Windowing Documentation
> ------------------------------
>
> Key: FLINK-4062
> URL: https://issues.apache.org/jira/browse/FLINK-4062
> Project: Flink
> Issue Type: Sub-task
> Components: Documentation
> Affects Versions: 1.1.0
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
>
> The window documentation could be a bit more principled and also needs
> updating with the new allowed lateness setting.
> There is also essentially no documentation about how to write a custom
> trigger.
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