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Azure Extension 14686
The azure extension lets DuckDB read and write files in Azure Blob Storage and Azure Data Lake Storage (ADLS) Gen2. Installing and Loading The azure extension will be transparently autoloaded on first use from the official extension reposit ... ory. If you would like to install and load it manually, run: INSTALL AND LOAD azure; Usage Queries need a secret ; for a public container, a secret with the storage account name is enough (see the CONFIG pr ... ovider ). Then you can query Azure storage as follows: Azure Blob Storage Allowed URI schemes: az or azure SELECT count(*) FROM 'az://⟨my_container⟩/⟨path⟩/⟨ ... /⟨my_file⟩.⟨parquet_or_csv⟩'; SELECT * FROM 'az://⟨my_storage_account⟩.blob.core.windows.net/⟨my_container⟩/⟨path⟩/*.csv'; Azure Data Lake Storage (ADLS) Allowed URI schemes: abfss or abfs (both connect over HTTPS) SELECT count(*) FROM 'abfss://⟨my_fi ...
https://man.mtool.work/duckdb/2.0/core_extensions/azure.html
HTTP User-Agent 9680
HTTP User-Agent Core DuckDB sets the default user-agent as follows: duckdb/v2.0.0(osx_arm64) cli which indicates the DuckDB version, the platform and the client API (the value of the duckdb_api setting, e.g., cli , capi or cpp ). If the cus ... /Pragmas . In addition, some extensions set their own user agents; notable examples here include the following. Extensions Azure Azure uses the Azure SDK which sets its own user agents. For identity and storage calls you may see respectively strings l ... ike these: via Azure Identity: azsdk-cpp-identity/1.11.0 (Darwin 25.2.0 arm64 Darwin Kernel Version 25.2.0: Tue Nov 18 21:07:05 PST 2025; root: ... xnu-12377.61.12~1/RELEASE_ARM64_T6020 Cpp/201402) via Azure Blob/ADLSv2: azsdk-cpp-storage-blobs/12.15.0 (Darwin 25.2.0 arm64 Darwin Kernel Version 25.2.0: Tue Nov 18 21:07:05 PST 20 ...
https://man.mtool.work/duckdb/2.0/operations_manual/user_agents.html
Delta Extension 9260
The delta extension adds support for the Delta Lake open-source storage format . It is built using the Delta Kernel . The extension reads Delta tables, local and remote, and writes them: it can create tables and append to them. For implemen ... secret: CREATE SECRET ( TYPE s3, REGION '⟨my_region⟩' ); SELECT * FROM delta_scan('s3://⟨my_bucket⟩/⟨path⟩'); Reading from Azure Blob Storage To scan a Delta table in an Azure Blob Storage container , run: SELECT * FROM delta_scan('az://⟨my_container⟩ ... /⟨path⟩'); To authenticate, create a secret : CREATE SECRET ( TYPE azure, PROVIDER credential_chain, ACCOUNT_NAME '⟨storage_account_name⟩' ); SELECT * FROM delta_scan('az://⟨my_container⟩/⟨path⟩' ... lude different ones by default. If more than one source is available, e.g., a service principal in the environment and the Azure CLI, credential loading may be inconsistent. Configure exactly one credential type in the chain of your secret. Since v1.5 ...
https://man.mtool.work/duckdb/2.0/core_extensions/delta.html
Secrets Manager 8962
The Secrets manager provides a unified user interface for secrets across all backends that use them. Secrets can be scoped, so different storage prefixes can have different secrets, allowing for example to join data across organizations in ... re registered by extensions. Currently, the following secret types are available: Secret type Service / protocol Extension azure Azure Blob Storage azure ducklake DuckLake ducklake gcs Google Cloud Storage httpfs http HTTP and HTTPS httpfs huggingface ... sed. A Secret Provider is a mechanism through which a secret is generated. To illustrate this, for the S3 , GCS , R2 , and AZURE secret types, DuckDB currently supports two providers: CONFIG and credential_chain . The CONFIG provider requires the user ... is used. For more details on how to create secrets using different providers check out the respective pages on httpfs and azure . Temporary Secrets To create a temporary unscoped secret to access S3, we can now use the following: CREATE SECRET my_sec ...
https://man.mtool.work/duckdb/2.0/configuration/secrets_manager.html
Core Extensions 8384
List of Core Extensions Name Description Maintainer Support tier Aliases autocomplete Autocompletion for CLI client DuckDB team avro Avro files reading DuckDB team aws AWS S3 functionality DuckDB team azure Filesystem abstraction for Azure ...
https://man.mtool.work/duckdb/2.0/core_extensions/overview.html
Data Sources 8297
DuckDB supports several data sources, including file formats, network protocols, and database systems: AWS S3 buckets and storage with S3-compatible API Azure Blob Storage Blob files Cloudflare R2 CSV Delta Lake DuckLake Excel httpfs Iceber ...
https://man.mtool.work/duckdb/2.0/data/data_sources.html
Versioning of Extensions 8227
Extension Versioning Most software has some sort of version number. Version numbers serve a few important goals: Tie a binary to a specific state of the source code Allow determining the expected feature set Allow determining the state of t ... previous_version current_version httpfs core NO_UPDATE_AVAILABLE 70fd6a8a24 70fd6a8a24 delta core UPDATED d9e5cc1 04c61e4 azure core NO_UPDATE_AVAILABLE 49b63dc 49b63dc aws core_nightly NO_UPDATE_AVAILABLE 42c78d3 42c78d3 Note that DuckDB will look f ... build. The update statement can also be provided with a list of specific extensions to update: UPDATE EXTENSIONS (httpfs, azure); extension_name repository update_result previous_version current_version httpfs core NO_UPDATE_AVAILABLE 70fd6a8a24 70fd ... 6a8a24 azure core NO_UPDATE_AVAILABLE 49b63dc 49b63dc Target DuckDB Version Currently, when extensions are compiled, they are tied to a ...
https://man.mtool.work/duckdb/2.0/extensions/versioning_of_extensions.html
Iceberg Extension 8104
The iceberg extension implements support for the Apache Iceberg open table format . There are two ways to work with Iceberg in DuckDB: Individual tables are read directly from storage, by pointing at a table's metadata. This requires no cat ... the Iceberg Options page. Reading from Object Stores The iceberg extension works together with the httpfs extension or the azure extension to access Iceberg tables in object stores such as S3 or Azure Blob Storage. SELECT count(*) FROM iceberg_scan('s ...
https://man.mtool.work/duckdb/2.0/core_extensions/iceberg/overview.html
Extensions 8069
DuckDB has a flexible extension mechanism that allows for dynamically loading extensions. Extensions can enhance DuckDB's functionality by providing support for additional file formats, introducing new types, and domain-specific functionali ... omplete in the shell avro false Adds support for reading Avro files aws false Provides features that depend on the AWS SDK azure false Adds a filesystem abstraction for Azure blob storage to DuckDB ... ... ... This list will show which extensions are ...
https://man.mtool.work/duckdb/2.0/extensions/overview.html
Catalogs 7772
The iceberg extension supports attaching Iceberg REST Catalogs. Attaching a catalog is required for writing to Iceberg . Before attaching an Iceberg REST Catalog, you must install the iceberg extension by following the instructions located ... _DELETE false ); Limitations DuckDB supports Iceberg REST Catalogs backed by S3, S3 Tables, Google Cloud Storage (GCS) and Azure Data Lake Storage (ADLS). ...
https://man.mtool.work/duckdb/2.0/core_extensions/iceberg/catalogs.html
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