Does Flink support multi-way join

[hagersaleh]

Does Flink support multi-way join  which contains more than two tables such as

T1⋈T2⋈T3⋈T4?

[Fabian Hueske-2]

Hi,

Flink's batch join API only features a binary join.

However, if the join functions have semantic annotations [1], multiple binary joins on the same attributes can be executed in a pipelined fashion without additional shuffles or sorts.

Best, Fabian

[1] https://ci.apache.org/projects/flink/flink-docs-release-1.1/apis/batch/index.html#semantic-annotations

2016-12-29 20:12 GMT+01:00 hagersaleh <[hidden email]>:

Does Flink support multi-way join  which contains more than two tables such
as

T1⋈T2⋈T3⋈T4?



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