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

["Jia Fan (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-44262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17739339#comment-17739339 ] 

Jia Fan commented on SPARK-44262:
---------------------------------

why not use datasoure v2?

> 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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