[jira] [Assigned] (SPARK-44262) JdbcUtils hardcodes some SQL statements

["Max Gekk (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-44262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Max Gekk reassigned SPARK-44262:
--------------------------------

    Assignee: Jia Fan

> JdbcUtils hardcodes some SQL statements
> ---------------------------------------
>
>                 Key: SPARK-44262
>                 URL: https://issues.apache.org/jira/browse/SPARK-44262
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Florent BIVILLE
>            Assignee: Jia Fan
>            Priority: Minor
>              Labels: pull-request-available
>
> 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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