Documentation

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.

Flux data typePostgreSQL data type
floatFLOAT
intBIGINT
uintBIGINT
stringTEXT
boolBOOL
timeTIMESTAMP

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