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Posted to issues@spark.apache.org by "Xianyin Xin (JIRA)" <ji...@apache.org> on 2019/07/08 12:17:00 UTC
[jira] [Commented] (SPARK-28303) Support DELETE/UPDATE/MERGE
Operations in DataSource V2
[ https://issues.apache.org/jira/browse/SPARK-28303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16880258#comment-16880258 ]
Xianyin Xin commented on SPARK-28303:
-------------------------------------
The SQL entrance is need also.
> Support DELETE/UPDATE/MERGE Operations in DataSource V2
> -------------------------------------------------------
>
> Key: SPARK-28303
> URL: https://issues.apache.org/jira/browse/SPARK-28303
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.3
> Reporter: Xianyin Xin
> Priority: Major
>
> Now many datasources (delta, jdbc, hive with transaction support, kudu, etc) supports deleting/updating data. It's necessary to add related APIs in the datasource V2 API sets.
> For example, we suggest add the below interface in V2 API,
> {code:title=SupportsDelete.java|borderStyle=solid}
> public interface SupportsDelete extends WriteBuilder {
> WriteBuilder delete(Filter[] filters);
> }
> {code}
> which can delete data by simple predicates (complicated cases like correlated subquery is not considered currently).
>
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