PostgreSQL

Bases: Spout

__init__(output, state, **kwargs)

Initialize the PostgreSQL class.

Parameters:

Name	Type	Description	Default
output	BatchOutput	An instance of the BatchOutput class for saving the data.	required
state	State	An instance of the State class for maintaining the state.	required
**kwargs		Additional keyword arguments.	{}

Using geniusrise to invoke via command line

genius PostgreSQL rise \
    batch \
        --output_s3_bucket my_bucket \
        --output_s3_folder s3/folder \
    none \
    fetch \
        --args host=localhost port=5432 user=postgres password=postgres database=mydb query="SELECT * FROM table" page_size=100

Using geniusrise to invoke via YAML file

version: "1"
spouts:
    my_postgresql_spout:
        name: "PostgreSQL"
        method: "fetch"
        args:
            host: "localhost"
            port: 5432
            user: "postgres"
            password: "postgres"
            database: "mydb"
            query: "SELECT * FROM table"
            page_size: 100
        output:
            type: "batch"
            args:
                bucket: "my_bucket"
                s3_folder: "s3/folder"

fetch(host, port, user, password, database, query, page_size=100)

📖 Fetch data from a PostgreSQL database and save it in batch.

Parameters:

Name	Type	Description	Default
host	str	The PostgreSQL host.	required
port	int	The PostgreSQL port.	required
user	str	The PostgreSQL user.	required
password	str	The PostgreSQL password.	required
database	str	The PostgreSQL database name.	required
query	str	The SQL query to execute.	required
page_size	int	The number of rows to fetch per page. Defaults to 100.	100

Raises:

Type	Description
Exception	If unable to connect to the PostgreSQL server or execute the query.