JingsongLi commented on a change in pull request #14229:
URL: https://github.com/apache/flink/pull/14229#discussion_r534622069
##########
File path: docs/dev/table/connectors/formats/index.md
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@@ -90,3 +90,62 @@ Flink supports the following formats:
</tr>
</tbody>
</table>
+
+
+Transform Table Format Resources
+--------------------------------
+
+Flink uses Java's [Service Provider Interfaces
(SPI)](https://docs.oracle.com/javase/tutorial/sound/SPI-intro.html) to load
the table format factories by their identifiers. Since the SPI resource file
named `org.apache.flink.table.factories.Factory` for every table format is
under the same directory `META-INF/services`, these resource files will
override each other when build the uber-jar of the project which uses more than
one table format, which will cause Flink to fail to load table format
factories. In this situation, a recommended way is transforming these resource
files under the directory `META-INF/services` by
[ServicesResourceTransformer](https://maven.apache.org/plugins/maven-shade-plugin/examples/resource-transformers.html)
of maven shade plugin.
Review comment:
Can we move these document to connector/index?
I think this is common mechanism for all connectors and formats.
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