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https://issues.apache.org/jira/browse/BEAM-6324?focusedWorklogId=202461&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-202461
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ASF GitHub Bot logged work on BEAM-6324:
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Author: ASF GitHub Bot
Created on: 22/Feb/19 09:09
Start Date: 22/Feb/19 09:09
Worklog Time Spent: 10m
Work Description: srfrnk commented on issue #7340: [BEAM-6324] -
Cassandra reader with query implemented
URL: https://github.com/apache/beam/pull/7340#issuecomment-466327140
@echauchot I would like that of course - however I don't know how that can
be achieved at this time. I was hoping at the beginning to be able to create an
API similar to BigQueryIO which I used a lot and liked very much. It also has a
`.withQuery` function similar to `ElasticsearchIO`. However with the current
method where a query is buing built for the splits in `CassandraIO` I can't
think of a safe and comfortable way of allowing the user bring his own query
while managing the query for the splitting.
I finally settled on having the user supply a filter in the form of a
partial `Where` clause.
Can you think of a better way?
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Issue Time Tracking
-------------------
Worklog Id: (was: 202461)
Time Spent: 9h (was: 8h 50m)
> CassandraIO.Read - Add the ability to provide a filter to the query
> -------------------------------------------------------------------
>
> Key: BEAM-6324
> URL: https://issues.apache.org/jira/browse/BEAM-6324
> Project: Beam
> Issue Type: Improvement
> Components: io-java-cassandra
> Affects Versions: 2.9.0
> Reporter: Shahar Frank
> Assignee: Shahar Frank
> Priority: Major
> Labels: performance, pull-request-available, triaged
> Time Spent: 9h
> Remaining Estimate: 0h
>
> CassandraIO.Read doesn't support using WHERE to filter the input at the
> source (In Cassandra) which might provide great performance boost.
> Already implemented by:
> https://github.com/apache/beam/pull/7340
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