Add BigLake support and better encoding/decoding of prefix's in catalog response

[Tmonster]

This builds off of #674

We detect if a prefix is already encoded by URLDecoding it, if it equals the prefix returned by the catalog, we assume it is not URL encoded, and each / is a separate component. If it does not equal the prefix returned by the catalog, we assume it is encoded and that the prefix is meant to be one component in the URL.

S3Tables expects 1 component
Glue can be either 1 component or multiple components

Here is a breakdown of some current catalogs

catalog	prefix example	encoded	is multiple components?
Biglake	projects/1057666841514/catalogs/biglake-public-nyc-taxi-iceberg	no	yes
Glue	catalogs/<account_id>:s3tablescatalog:<bucket_name>	no	yes&no
s3tables	arn%3Aaws%3As3tables%3Aus-east-1%3A<account_id>%3Abucket%2F<bucket_name>	yes	no

[Tmonster]

This PR contains a fix for polaris

[Tishj]

Thanks LGTM 👍

[talatuyarer]

Thank you @Tmonster and @Tishj

Where do we need to update for documentation ?

With this change Biglake catalog's table will run with GCS also too. But in documentation it says it does not support any other blob storage except S3. https://duckdb.org/docs/stable/core_extensions/iceberg/iceberg_rest_catalogs#:~:text=lakekeeper_secret%27%0A)%3B-,Limitations,that%20is%20not%20S3%20or%20S3%20Tables%20is%20not%20yet%20supported.,-About%20this%20page

And also I would like to add a Biglake example that i share on the documentation. #665

[Tmonster]

@talatuyarer
I have an internal issue to add to the docs, but if you want to take a stab at it feel free.
Here is a PR I opened to add our current documentation, that should be enough to get started

duckdb/duckdb-web#5410

[astronautas]

This is not released as far as I understand? Just tested:

_duckdb.BinderException: Binder Error: Unknown parameter 'extra_http_headers' for secret type 'iceberg' with default provider 'config'

[Tmonster]

No, it is not available yet. It will be available in the v1.5.0 release, however, which is planned for sometime later february

[talatuyarer]

is there any nightly build for preview that we can use without building code ? @Tmonster

[Tmonster]

Unfortunately no. Building locally is the only option right now. It would require a nightly DuckDB build, and there is no guarantee that extensions are built for every nightly DuckDB build