Write to PostgreSQL

To write data to PostgreSQL with Flux:

1. Import the sql package.

2. Pipe-forward data into sql.to() and provide the following parameters:

   • driverName: postgres
   • dataSourceName: See data source name
   • table: Table to write to
   • batchSize: Number of parameters or columns that can be queued within each call to Exec (default is 10000)

import "sql"
  
data
    |> sql.to(
        driverName: "postgres",
        dataSourceName: "postgresql://username:password@localhost:5432",
        table: "example_table",
    )

PostgreSQL data source name

The postgres driver uses the following DSN syntax (also known as a connection string):

postgres://username:password@localhost:5432/dbname?param=value

Flux to PostgreSQL data type conversion

sql.to() converts Flux data types to PostgreSQL data types.