Documentation

Write to CockroachDB

To write data to CockroachDB 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:26257/cluster_name.defaultdb?sslmode=verify-full&sslrootcert=certs_dir/cc-ca.crt",
    table: "example_table"
  )

CockroachDB data source name

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

postgres://username:password@localhost:26257/cluster_name.defaultdb?sslmode=verify-full&sslrootcert=certs_dir/cc-ca.crt

The postgres driver uses the Go pq implementation to interact with CockroachDB.

Flux to CockroachDB data type conversion

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

Flux data typeCockroachDB data type
floatFLOAT
intBIGINT
uintBIGINT
stringTEXT
boolBOOL
timeTIMESTAMP

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