Allow disabling remote signing in REST Catalog
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评估
调研方向
从 pyiceberg/catalog/rest/init.py 中 Table 的构造处开始，检查 REST catalog 属性如何传递到 FileIO 配置。跟踪 s3.signer 的处理，然后验证空的 catalog 属性会禁用远程签名，同时不会破坏现有的 response 配置行为。
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描述
Feature Request / Improvement
When using a REST Catalog (e.g. Lakekeeper), pyiceberg gets remote signing details from the catalog.
However, sometimes it would be useful to not use remote signing, in the case where the process performing the operations has access to the S3 endpoint through secret access keys. This is because remote signing requires a network round trip (plus any authorisation on server side).
It would be great if we could disable remote signing by respecting the s3.signer catalog property if it is empty.
The FileIO object gets created in pyiceberg/catalog/rest/__init__.py:
return Table(
identifier=identifier_tuple,
metadata_location=table_response.metadata_location, # type: ignore
metadata=table_response.metadata,
io=self._load_file_io(
{**table_response.metadata.properties, **table_response.config}, table_response.metadata_location
),
catalog=self,
config=table_response.config,
)
This doesn't use the catalog properties that have been passed to the REST catalog init as far as I can tell.
I might be wrong, but I don't think Support storage-credentials in REST catalog LoadTableResult- #3042
fixes this, because it still uses the response from the catalog.
Thanks!
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