Chenghao Lyu 46fcbbc1e3 fix(python): require explicit region for S3 buckets with dots (#2892)
When region is not specific in the s3 path, `resolve_s3_region` from
"lance-format" project (see [here][1]) will resolve the region by
calling `resolve_bucket_region`, which is a function from the
"arrow-rs-object-store" project expecting [virtual-hosted-style
URLs][1]. When there are dot (".") in the virtual-hosted-style URLs, it
breaks automatic region detection. See more details in the issue
description:
https://github.com/lancedb/lancedb/issues/1898#issuecomment-3690142427

This PR add early validation in connect() and connect_async() to raise a
clear error with instructions when the region is not specified for such
buckets.


[1]:
https://github.com/lance-format/lance/blob/v2.0.0-beta.4/rust/lance-io/src/object_store/providers/aws.rs#L197
[2]:
eedbf3d7d8/src/aws/resolve.rs (L52C5-L52C65)
[3]:
https://docs.aws.amazon.com/AmazonS3/latest/userguide/VirtualHosting.html#virtual-hosted-style-access

Fixes #1898
2026-01-02 15:35:22 -08:00
2023-03-17 18:15:19 -07:00
2025-03-10 09:01:23 -07:00

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