[
https://issues.apache.org/jira/browse/SPARK-56369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated SPARK-56369:
-----------------------------------
Labels: pull-request-available (was: )
> Introduce scan API into StateStore
> ----------------------------------
>
> Key: SPARK-56369
> URL: https://issues.apache.org/jira/browse/SPARK-56369
> Project: Spark
> Issue Type: Task
> Components: Structured Streaming
> Affects Versions: 4.2.0
> Reporter: Jungtaek Lim
> Priority: Major
> Labels: pull-request-available
>
> Currently, iterator API in StateStore only receives column family which
> scopes the range of iteration to the specific column family. It still seeks
> for the very beginning of the key for column family, scans through all
> tombstones internally during scanning for keys till either the iterator has
> fully consumed or iterator is closed explicitly.
> Recently we made some improvement on prefixScan to scope lower bound and
> upper bound, based on the characteristic of prefixScan. The improvement is
> not only useful for prefixScan but also useful for any sort of range scan.
> We want to introduce a new API in StateStore to provide the iterator with
> accepting the boundary of the keys. With this approach, we can skip
> tombstones very efficiently in both lower boundary side and upper boundary
> side.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
