[jira] [Created] (FLINK-40004) Flink 1.20.x with jdbc-connector 3.3.0 fails to create Catalog due to multiple 'jdbc' CatalogFactory implementations in classpath

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

songbin created FLINK-40004:
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             Summary: Flink 1.20.x with jdbc-connector 3.3.0 fails to create Catalog due to multiple 'jdbc' CatalogFactory implementations in classpath
                 Key: FLINK-40004
                 URL: https://issues.apache.org/jira/browse/FLINK-40004
             Project: Flink
          Issue Type: Bug
          Components: Connectors / JDBC
    Affects Versions: 1.20.3
            Reporter: songbin
         Attachments: image-2026-06-29-10-29-28-681.png, image-2026-06-29-10-30-48-889.png

Flink version 1.20.x uses flink-connector-jdbc-3.3.0-1.20 to create catalog, and an error is reported: Could not execute SQL statement. Reason:
org-apache.flink. table.api.ValidationException: Multiple factories for identifier 'jdbc' that implement 'org-apache.flink.table.factories.CatalogFactory' found in the classpath.
!image-2026-06-29-10-29-28-681.png!

The conflict arose because there were two entries with the identifier 'jdbc' in the META-INF/services/org.apache.flink.table.factories.Factory file during packaging. It is recommended to remove org.apache.flink.connector.jdbc.catalog.factory.JdbcCatalogFactory during packaging.

!image-2026-06-29-10-30-48-889.png!

 



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