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duckdb_msgpack_extension's Introduction

DuckDB MessagePack extension

The MessagePack extension allows DuckDB to directly read data from files storing MessagePack map values.

Disclaimer

This is just a toy project. Do not use for production systems.

Dependency

Build

export CMAKE_BUILD_PARALLEL_LEVEL=6 # parallelize build
# if you use vcpkg
export VCPKG_TOOLCHAIN_PATH="/path/to/your/vcpkg/installation"
# if you installed vcpkg on the same directory as this extension:
# export VCPKG_TOOLCHAIN_PATH=`pwd`/vcpkg/scripts/buildsystems/vcpkg.cmake

make (release/debug)

Run

msgpack_extension is already linked into the built duckdb binary. You can use the extension without load.

./build/release/duckdb

Use loadable extension

Run DuckDB CLI:

duckdb -unsigned  # allow unsigned extensions

Then, load the extension:

LOAD 'build/release/extension/msgpack_maps/msgpack_maps.duckdb_extension';

Usage

read msgpack files

msgpack files can be read by read_msgpack function. It supports only scan of map values.

select * from read_msgpack('data/nation.msgpack', columns={n_nationkey: 'INTEGER', n_name: 'VARCHAR', n_regionkey: 'SMALLINT', n_comment: 'VARCHAR'});

duckdb_msgpack_extension's People

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