Dagster Integration:
Dagster + DuckDB
Read and write natively to DuckDB from Software Defined Assets.
About this integration
This library provides an integration with the DuckDB database, and allows for an out-of-the-box I/O Manager so that you can make DuckDB your storage of choice.
Installation
pip install dagster-duckdb
Example
from dagster_duckdb_pandas import DuckDBPandasIOManager
from dagster import Definitions, asset
import pandas as pd
@asset(
key_prefix=["my_schema"] # will be used as the schema in duckdb
)
def my_table() -> pd.DataFrame: # the name of the asset will be the table name
return pd.DataFrame()
defs = Definitions(
assets=[my_table],
resources={"io_manager": DuckDBPandasIOManager(database="my_db.duckdb")}
)
About DuckDB
DuckDB is a column-oriented embeddable OLAP database. A typical OLTP relational database like SQLite is row-oriented. In row-oriented database, data is organised physically as consecutive tuples.