[ https://issues.apache.org/jira/browse/BEAM-1198?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kenneth Knowles reassigned BEAM-1198: ------------------------------------- Assignee: Kenneth Knowles > ViewFn: explicitly decouple runner materialization of side inputs from > SDK-specific mapping > ------------------------------------------------------------------------------------------- > > Key: BEAM-1198 > URL: https://issues.apache.org/jira/browse/BEAM-1198 > Project: Beam > Issue Type: New Feature > Components: beam-model-fn-api, beam-model-runner-api > Reporter: Kenneth Knowles > Assignee: Kenneth Knowles > > For side inputs, the field {{PCollectionView.fromIterableInternal}} implies > an "iterable" materialization of the contents of a PCollection, which is > adapted to the desired user-facing type within a UDF (today the > PCollectionView "is" the UDF) > In practice, runners get adequate performance by special casing just a couple > of types of PCollectionView in a rather cumbersome manner. > The design to improve this is https://s.apache.org/beam-side-inputs-1-pager > and this makes the de facto standard approach the actual model. -- This message was sent by Atlassian JIRA (v6.3.4#6332)