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https://issues.apache.org/jira/browse/FLINK-37481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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dalongliu updated FLINK-37481:
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Parent: FLINK-37859
Issue Type: Sub-task (was: New Feature)
> FLIP-516: Multi way join operator
> ---------------------------------
>
> Key: FLINK-37481
> URL: https://issues.apache.org/jira/browse/FLINK-37481
> Project: Flink
> Issue Type: Sub-task
> Reporter: Gustavo de Morais
> Assignee: Gustavo de Morais
> Priority: Major
> Labels: pull-request-available
>
> We currently always rely on a chain of binary joins when there are multiple
> joins in a query. This can often generate a lot of intermediate state which
> considerably increases the state size - specially for regular joins. There
> are optimizations that can be done to a multi-way join operator that can
> optimize the worst case scenarios of binary joins.
>
> We want as a first step with this ticket to have a multi join operator that
> works on multiple inputs for streaming regular joins.
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