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https://issues.apache.org/jira/browse/FLINK-5156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17328863#comment-17328863
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Flink Jira Bot commented on FLINK-5156:
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This major issue is unassigned and itself and all of its Sub-Tasks have not
been updated for 30 days. So, it has been labeled "stale-major". If this ticket
is indeed "major", please either assign yourself or give an update. Afterwards,
please remove the label. In 7 days the issue will be deprioritized.
> Consolidate streaming FieldAccessor functionality
> -------------------------------------------------
>
> Key: FLINK-5156
> URL: https://issues.apache.org/jira/browse/FLINK-5156
> Project: Flink
> Issue Type: Task
> Components: API / DataSet, API / DataStream, API / Type
> Serialization System
> Reporter: Márton Balassi
> Priority: Major
> Labels: stale-major
>
> The streaming FieldAccessors (keyedStream.keyBy(...)) have slightly different
> semantics compared to their batch counterparts.
> Currently the streaming ones allow selecting a field within an array (which
> might be dangerous as the array typeinfo does not contain the length of the
> array, thus leading to a potential index out of bounds) and accept not only
> "*", but also "0" to select a whole type.
> This functionality should be either removed or documented. The latter can be
> achieved by effectively reverting [1]. Note that said commit was squashed
> before merging.
> [1]
> https://github.com/mbalassi/flink/commit/237f07eb113508703c980b14587d66970e7f6251
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