Florent BIVILLE created SPARK-44262:
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Summary: 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
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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