blinkseb opened a new issue, #7116: URL: https://github.com/apache/gravitino/issues/7116
### Version main branch ### Describe what's wrong Hello! I'm currently checking if Gravitino Iceberg REST catalog would be suitable for us in order to replace an existing JDBC catalog. However, it seems that support for nested namespaces is not working correctly. I have an existing namespace `test`, which contains a namespace `namespace`. Using `pyiceberg` to list the `test` namespace works as expected: ``` uvx pyiceberg@latest --catalog rest --uri http://localhost:9001/iceberg/ list test test.namespace ``` But listing the content of `test.namespace` does not work: ``` uvx pyiceberg@latest --catalog rest --uri http://localhost:9001/iceberg/ list test.namespace NoSuchNamespaceException: Namespace does not exist: test namespace ``` notice the \u001F character: it's the character that's used in the REST protocol as namespace separator. I'll looked a bit at the code, and I see that namespaces are decoded using [`RESTUtil.decodeNamespace` from Iceberg]([here](https://github.com/apache/iceberg/blob/apache-iceberg-1.5.2/core/src/main/java/org/apache/iceberg/rest/RESTUtil.java#L207-L217) (https://github.com/apache/gravitino/blob/main/iceberg/iceberg-rest-server/src/main/java/org/apache/gravitino/iceberg/service/rest/IcebergTableOperations.java#L93) for example), which split the string on the `%1F` string separator. Thus this method expects an url-encoded string. My guess is that the input string was already url-decoded before calling `decodeNamespace`. Using curl, I double encoded the query parameter (`test%1Fnamespace` -> `test%251namespace`), and it works: ``` curl 'http://localhost:9001/iceberg/v1/namespaces?parent=test%251Fnamespace' {"namespaces":[]} ``` vs the standard call: ``` curl 'http://localhost:9001/iceberg/v1/namespaces?parent=test%1Fnamespace' {"error":{"message":"Namespace does not exist: test\u001Fnamespace","type":"NoSuchNamespaceException","code":404,"stack": []} ``` Thanks a lot for your help! ### Error message and/or stacktrace ``` exception: class org.apache.iceberg.exceptions.NoSuchNamespaceException, exception message: Namespace does not exist: test namespace ``` ### How to reproduce running ``` curl 'http://localhost:9001/iceberg/v1/namespaces?parent=test%1Fnamespace' ``` is enough. I'm using v`0.8.1-incubating`. ### Additional context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
