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Posted to issues@beam.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/08/22 18:55:00 UTC
[jira] [Work logged] (BEAM-8023) Allow specifying BigQuery Storage
API readOptions at runtime
[ https://issues.apache.org/jira/browse/BEAM-8023?focusedWorklogId=299650&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-299650 ]
ASF GitHub Bot logged work on BEAM-8023:
----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Aug/19 18:54
Start Date: 22/Aug/19 18:54
Worklog Time Spent: 10m
Work Description: kmjung commented on pull request #9405: [BEAM-8023] Add value provider interfaces for BigQueryIO.Read using Method.DIRECT_READ
URL: https://github.com/apache/beam/pull/9405
This change modifies the interfaces used to specify table read options
when reading from BigQuery using Method.DIRECT_READ. It allows the
selected fields list and SQL row restriction to be specified using value
providers rather than static parameters, and marks as deprecated the
previous interface which allows users to specify a TableReadOptions
proto directly.
------------------------
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Issue Time Tracking
-------------------
Worklog Id: (was: 299650)
Remaining Estimate: 0h
Time Spent: 10m
> Allow specifying BigQuery Storage API readOptions at runtime
> ------------------------------------------------------------
>
> Key: BEAM-8023
> URL: https://issues.apache.org/jira/browse/BEAM-8023
> Project: Beam
> Issue Type: Improvement
> Components: io-java-gcp
> Reporter: Jeff Klukas
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We have support in the Java SDK for using the BigQuery Storage API for reads, but only the target query or table is supported as a ValueProvider to be specified at runtime. AFAICT, there is no reason we can't delay specifying readOptions until runtime as well.
> The readOptions are accessed by BigQueryStorageTableSource in getTargetTable; I believe that's occurring at runtime, but I'd love for someone with deeper BoundedSource knowledge to confirm that.
> I'd advocate for adding new methods `TypedRead.withSelectedFields(ValueProvider<List<String>> value)` and `TypedRead.withRowRestriction(ValueProvider<String> value)`. The existing `withReadOptions` method would then populate the other two as StaticValueProviders. Perhaps we'd want to deprecate `withReadOptions` in favor or specifying individual read options as separate parameters.
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