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- Legacy Authentication Scheme for S3 API 19583
- Prior to version 0.10.0, DuckDB did not have a Secrets manager . Hence, the configuration of and authentication to S3 endpoints was handled via variables. This page documents the legacy authentication scheme for the S3 API. Warning This pag
...s required to change the endpoint to s3.⟨region⟩.amazonaws.com . After configuring the correct endpoint and region, public files can be read. To also read private files, authentication credentials can be added: SET s3_access_key_id = '⟨aws_access_key..._id⟩'; SET s3_secret_access_key = '⟨aws_secret_access_key⟩'; Alternatively, temporary S3 credentials are also supported. They require setting an addit...the individual configuration values listed above can be set as query parameters. For instance: SELECT * FROM 's3://bucket/file.parquet?s3_access_key_id=accessKey&s3_secret_access_key=secretKey'; Multiple configurations per query are also allowed: SE... - https://man.mtool.work/duckdb/2.0/core_extensions/httpfs/s3api_legacy_authentica...
- Securing DuckDB 19029
- DuckDB is a powerful analytical database engine. It can read and write files, access the network, load extensions, and use system resources. Like any powerful tool, these capabilities require appropriate configuration when working with sens
...e, there is a relational API in Python that allows building queries programmatically. These APIs accept user input such as file paths, table names, column names, and filter expressions. While they don't execute raw SQL strings, they still trigger Duc...kDB operations that can read files, access the network, and use system resources. Example considerations for non-SQL APIs: File paths: Functions like duckdb...uckdb.read_parquet(path) accept file paths. An attacker-controlled path could read sensitive files (e.g., /etc/passwd ) or access remote URLs. Table and column names: While these are typically identifiers rather than executable code, unsanitized input... - https://man.mtool.work/duckdb/2.0/operations_manual/securing_duckdb/overview.htm...
- Connect 15512
- Overview Every DuckDB feature reachable from Java starts with a Connection . This page covers the JDBC URL forms the driver accepts, how DuckDB and driver options are passed and which of them win, how connections come to share (or not share
...abase instance — the one created by the plain jdbc:duckdb: URL — which no other URL can address. On a named in-memory or a file-backed connection, duplicate() is effectively the same as opening a new connection on the same URL, because those instance...he instance starts, as the first connection is opened, so a later connection that requests different options — a different access_mode , for example — is rejected. See Database Instances and Instance Caching . JDBC URL Syntax A DuckDB JDBC URL consists...tly. jdbc:duckdb:memory:⟨label⟩ A named in-memory database that other connections can share. jdbc:duckdb:⟨path⟩ A database file on disk, for example jdbc:duckdb:/tmp/my_database . jdbc:duckdb:ducklake:⟨metadata_path⟩ A DuckLake catalog. When using th... - https://man.mtool.work/duckdb/2.0/clients/java/connecting.html
- Configuration 14691
- DuckDB has a number of configuration options that can be used to change the behavior of the system. The configuration options can be set using either the SET statement or the PRAGMA statement . They can be reset to their original values usi
...ndar The current calendar VARCHAR System (locale) calendar TimeZone The current time zone VARCHAR System (locale) timezone access_mode Access mode of the database ( AUTOMATIC , READ_ONLY or READ_WRITE ). VARCHAR automatic allocator_background_threads W..._directories List of directories, and directory prefixes, that are ALWAYS allowed to be queried, even when enable_external_access is false. VARCHAR[] [] allowed_paths List of files that are ALWAYS allowed to be queried, even when enable_external_access...while the checkpoint is happening. UBIGINT 100000 auto_fallback_to_full_download Allows automatically falling back to full file downloads when possible. BOOLEAN true autoinstall_extension_repository Overrides the custom endpoint for extension install... - https://man.mtool.work/duckdb/2.0/configuration/overview.html
- Guides 14460
- The guides section contains compact how-to guides that are focused on achieving a single goal. For API references and examples, see the rest of the documentation. Note that there are many tools using DuckDB, which are not covered in the off
...torial, check out the “Analyzing Railway Traffic in the Netherlands” tutorial. Data Import and Export Data import overview File access with the file: protocol Reading DuckDB databases CSV Files How to load a CSV file into a table How to export a tabl...e to a CSV file Parquet Files How to load a Parquet file into a table How to export a table to a Parquet file How to run a query directly... - https://man.mtool.work/duckdb/2.0/guides/overview.html
- Azure Extension 14301
- 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
...orage as follows: Azure Blob Storage Allowed URI schemes: az or azure SELECT count(*) FROM 'az://⟨my_container⟩/⟨path⟩/⟨my_file⟩.⟨parquet_or_csv⟩'; Globs are also supported: SELECT * FROM 'az://⟨my_container⟩/⟨path⟩/*.csv'; SELECT * FROM 'az://⟨my_co...lly qualified path syntax: SELECT count(*) FROM 'az://⟨my_storage_account⟩.blob.core.windows.net/⟨my_container⟩/⟨path⟩/⟨my_file⟩.⟨parquet_or_csv⟩'; SELECT * FROM 'az://⟨my_storage_account⟩.blob.core.windows.net/⟨my_container⟩/⟨path⟩/*.csv'; Azure Dat...ype to curl has the following effects: On Linux, it may fix certificate errors such as Problem with the SSL CA cert (path? access rights?) : the extension then looks for the CA bundle in the usual paths, which curl does not do by default and which stat... - https://man.mtool.work/duckdb/2.0/core_extensions/azure.html
- S3 API Support 14205
- The httpfs extension supports reading/writing/ globbing files on object storage servers using the S3 API. S3 offers a standard API to read and write to remote files (while regular http servers, predating S3, do not offer a common write API)
.... DuckDB conforms to the S3 API, that is now common among industry storage providers. Platforms The httpfs filesystem is tested with AWS S3 , Minio , Google Cloud and lakeFS . Other services that implement the S3 API (such as Cloudfla...lowing table shows which parts of the S3 API are required for each httpfs feature. Feature Required S3 API features Public file reads HTTP Range requests Private file reads Secret key or session token authentication File glob ListObjectsV2 File write...ret with a profile. See Selecting a Profile . config Provider The default provider, config (i.e., user-configured), allows access to the S3 bucket by manually providing a key. For example: CREATE OR REPLACE SECRET secret ( TYPE s3, PROVIDER config, KEY... - https://man.mtool.work/duckdb/2.0/core_extensions/httpfs/s3api.html
- Connect 14049
- Overview Every DuckDB feature reachable from Rust starts with a Connection . Opening in-memory and file-backed databases, configuring a database instance with Config , opening read-only, pooling connections across threads, the crate's threa
...onnection is created with Connection::open_in_memory() for an in-memory database, or Connection::open(path) for a database file. Both return a Result , so the ? operator propagates any error: use duckdb::{Connection, Result}; // In-memory database: n...othing is persisted to disk. let conn = Connection::open_in_memory()?; // File-backed database: created if it does not exist. let conn = Connection::open("my_database.duckdb")?; For an in-memory databa...ction::open_with_flags("my_database.duckdb", config)?; Config exposes typed methods for the most common options, including access_mode() , max_memory() , threads() , default_order() , default_null_order() , enable_external_access() , enable_object_cach... - https://man.mtool.work/duckdb/2.0/clients/rust/connecting.html
- DBeaver SQL IDE 14009
- DBeaver is a powerful and popular desktop SQL editor and integrated development environment (IDE). It has both an open source and enterprise version. DBeaver is useful for visually inspecting the available tables in DuckDB and for quickly b
...uilding complex queries. DuckDB's JDBC connector allows DBeaver to query DuckDB files, and by extension, any other files that DuckDB can access (like Parquet files ). Installing DBeaver Install DBeaver using...Connection in the menu bar. Search for DuckDB, select it, and click Next. Enter the path or browse to the DuckDB database file you wish to query. To use an in-memory DuckDB (useful primarily if just interested in querying Parquet files, or for testi...ing your connection, return to the “Connect to a database” dialog and click “Edit Driver Settings”. Alternatively, you can access the driver settings menu by returning to the main DBeaver window and clicking Database > Driver Manager in the menu bar. T... - https://man.mtool.work/duckdb/2.0/guides/sql_editors/dbeaver.html
- Storage Versions and Format 13967
- Compatibility Backward Compatibility Backward compatibility refers to the ability of a newer DuckDB version to read storage files created by an older DuckDB version. Version 0.10 is the first release of DuckDB that supports backward compati
...bility in the storage format. DuckDB 0.10 can read and operate on files created by the previous DuckDB version – DuckDB 0.9. For future DuckDB versions, our goal is to ensure that any DuckDB ve...rsion released after can read files created by previous versions, starting from this release. We want to ensure that the file format is fully backward compat...E 'tmp'" After this, mydata.old.db will remain in the old format, mydata.new.db will contain the same data but in a format accessible by the more recent DuckDB version, and the folder tmp will hold the same data in a universal format as different files... - https://man.mtool.work/duckdb/2.0/internals/storage.html
DuckDB 2.0 Documentation / man.mtool.work