lakemove/go-duckdb

go-duckdb provides a database/sql driver for the DuckDB database engine.

Go SQL driver for DuckDB

This is a WIP version of the DuckDB Go driver.

The DuckDB driver conforms to the built-in database/sql interface.

Installation

go get github.com/marcboeker/go-duckdb

go-duckdb uses CGO to make calls to the linked DuckDB database. Therefor you need to have a compiled version of DuckDB availabe.

git clone https://github.com/cwida/duckdb.git
cd duckdb
make

Please locate the following files in your DuckDB directory, as we need them to use the go-duckdb driver:

• build/release/src/libduckdb{_static}.a or build/release/src/libduckdb.so (for Linux)
• build/release/src/libduckdb.dylib (for macOS)
• build/release/src/libduckdb.dll (for Windows)
• src/include/duckdb.h

If you don't want to compile DuckDB yourself, you could also use the pre-compiled libraries from their releases page.

To run the example or execute the tests please specify the following CGO_LDFLAGS, CGO_CFLAGS and the DYLD_LIBRARY_PATH (if you are on macOS) env variables.

CGO_LDFLAGS="-L/path/to/libduckdb_static.a" CGO_CFLAGS="-I/path/to/duckdb.h" DYLD_LIBRARY_PATH="/path/to/libduckdb.dylib" go run examples/simple.go

For example on macOS:

CGO_LDFLAGS="-L/path/to/duckdb/build/release/src" CGO_CFLAGS="-I/path/to/duckdb/src/include" DYLD_LIBRARY_PATH="/path/to/duckdb/build/release/src" go run examples/simple.go

Usage

go-duckdb hooks into the database/sql interface provided by the Go stdlib. To open a connection, simply specify the driver type as duckdb:

db, err := sql.Open("duckdb", "")

This creates an in-memory instance of DuckDB. If you would like to store the data on the filesystem, you need to specify the path where to store the data:

db, err := sql.Open("duckdb", "/path/to/foo.db")

Please refer to the database/sql GoDoc for further usage instructions.