toFloat() function
The toFloat() function converts all values in the _value column to floats.
Function type: Type conversion
toFloat()
Supported data types: Boolean | Integer | Numeric String | Uinteger
To convert values in a column other than _value, define a custom function
patterned after the function definition,
but replace _value with your desired column.
Examples
from(bucket: "telegraf")
|> filter(fn:(r) =>
r._measurement == "mem" and
r._field == "used"
)
|> toFloat()
Function definition
toFloat = (tables=<-) =>
tables
|> map(fn:(r) => ({ r with _value: float(v: r._value) }))
Used functions: map(), float()
Support and feedback
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