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https://issues.apache.org/jira/browse/BEAM-7577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16871158#comment-16871158
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EDjur commented on BEAM-7577:
-----------------------------
I have an initial working version locally that uses ValueProviders for the
ReadFromDatastore Query type. I'll find some time later this week to make it
neater and open a PR.
> Allow the use of ValueProviders in
> datastore.v1new.datastoreio.ReadFromDatastore query
> --------------------------------------------------------------------------------------
>
> Key: BEAM-7577
> URL: https://issues.apache.org/jira/browse/BEAM-7577
> Project: Beam
> Issue Type: New Feature
> Components: io-python-gcp
> Affects Versions: 2.13.0
> Reporter: EDjur
> Priority: Minor
>
> The current implementation of ReadFromDatastore does not support specifying
> the query parameter at runtime. This could potentially be fixed through the
> usage of a ValueProvider to specify and build the Datastore query.
> Allowing specifying the query at runtime makes it easier to use dynamic
> queries in Dataflow templates. Currently, there is no way to have a Dataflow
> template that includes a dynamic query (such as filtering by a timestamp or
> similar).
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