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https://issues.apache.org/jira/browse/SPARK-44262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17739496#comment-17739496
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Florent BIVILLE commented on SPARK-44262:
-----------------------------------------
Thanks for the quick reply. While I don't have any access to the
(closed-source) SDK project, I'd be interested in learning more about this.
Is there any specific pointers in the codebase or documentation you could point
me to? Thanks a lot!
> JdbcUtils hardcodes some SQL statements
> ---------------------------------------
>
> Key: SPARK-44262
> URL: https://issues.apache.org/jira/browse/SPARK-44262
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Florent BIVILLE
> Priority: Major
>
> I am currently investigating an integration with the [Neo4j JBDC
> driver|https://github.com/neo4j-contrib/neo4j-jdbc] and a Spark-based cloud
> vendor SDK.
>
> This SDK relies on Spark's {{JdbcUtils}} to run queries and insert data.
> While {{JdbcUtils}} partly delegates to
> \{{org.apache.spark.sql.jdbc.JdbcDialect}} for some queries, some others are
> hardcoded to SQL, see:
> * {{org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils#dropTable}}
> *
> {{org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils#getInsertStatement}}
>
> This works fine for relational databases but breaks for NOSQL stores that do
> not support SQL translation (like Neo4j).
> Is there a plan to augment the {{JdbcDialect}} surface so that it is also
> responsible for these currently-hardcoded queries?
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