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- Overview 11946
- We designed DuckDB to be easy to deploy and operate. We believe that most users do not need to consult the pages of the operations manual. However, there are certain setups – e.g., when DuckDB is running in mission-critical infrastructure –
...where we would like to offer advice on how to configure DuckDB. The operations manual contains advice for these cases and also offers convenient config... - https://man.mtool.work/duckdb/2.0/operations_manual/overview.html
- Unity Catalog Extension 9911
- The unity_catalog extension attaches a Unity Catalog catalog, on Databricks or Unity Catalog OSS, as a DuckDB database. You can list, read, insert into and create its Delta Lake tables. It uses the delta extension to access the tables. For
...wide statistics, which can improve filtering and reduce the number of files that a query scans. Unity Catalog OSS does not offer this API. With USE_IRC_SCAN_PLAN true , DuckDB sends each scan's filters to the server and reads only the files that it re...nity_catalog, DEFAULT_SCHEMA 'main', USE_IRC_SCAN_PLAN true ); If the server cannot plan a scan, e.g., because it does not offer the API or refuses the table, DuckDB reads the table through its Delta log instead, and does not try scan planning again o... - https://man.mtool.work/duckdb/2.0/core_extensions/unity_catalog.html
- S3 API Support 7877
- 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)
...examplevalue1 s3://bucket-name/file1.parquet 2 examplevalue1 s3://bucket-name/file2.parquet Hive Partitioning DuckDB also offers support for the Hive partitioning scheme , which is available when using HTTP(S) and S3 endpoints. Writing Writing to S3... - https://man.mtool.work/duckdb/2.0/core_extensions/httpfs/s3api.html
- Connect 7212
- 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
...nments where you control the connection string but not the code that opens the connection, for example a BI tool that only offers a JDBC URL field: jdbc:duckdb:/tmp/my_database;session_init_sql_file=/path/to/init.sql The file can be split into a datab...432/lake_catalog' AS lake " + "(DATA_PATH 's3://my-bucket/lake/')"); stmt.execute("USE lake"); // ... } In tools that only offer a JDBC URL field, the same statements can be run from a file with the session_init_sql_file option. The lake is opened bef... - https://man.mtool.work/duckdb/2.0/clients/java/connecting.html
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