Documentation

Write to MySQL

To write data to MySQL with Flux:

  1. Import the sql package.

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

    • driverName: mysql
    • 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: "mysql",
        dataSourceName: "user:password@tcp(localhost:3306)/db",
        table: "example_table",
    )
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MySQL data source name

The mysql driver uses the following data source name (DSN) syntax (also known as a connection string):

username:password@tcp(localhost:3306)/dbname?param=value
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Flux to MySQL data type conversion

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

Flux data typeMySQL data type
floatFLOAT
intBIGINT
uintBIGINT
stringTEXT(16383)
boolBOOL (TINYINT)
timeDATETIME

MySQL BOOL types

BOOL is a synonym supplied by MySQL for convenience. MySQL stores BOOL values as TINYINT types so looking at the schema shows the column type as TINYINT.


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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

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InfluxDB 3 Core and Enterprise are now in Beta

InfluxDB 3 Core and Enterprise are now available for beta testing, available under MIT or Apache 2 license.

InfluxDB 3 Core is a high-speed, recent-data engine that collects and processes data in real-time, while persisting it to local disk or object storage. InfluxDB 3 Enterprise is a commercial product that builds on Core’s foundation, adding high availability, read replicas, enhanced security, and data compaction for faster queries. A free tier of InfluxDB 3 Enterprise will also be available for at-home, non-commercial use for hobbyists to get the full historical time series database set of capabilities.

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