Documentation

iox.sqlInterval() function

iox.sqlInterval() is experimental and subject to change at any time.

iox.sqlInterval() converts a duration value to a SQL interval string.

SQL interval strings support down to millisecond precision. Any microsecond or nanosecond duration units are dropped from the duration value. If the duration only consists of microseconds or nanosecond units, iox.sqlInterval() returns 1 millisecond. Duration values must be positive to work as a SQL interval string.

Function type signature
(d: A) => string
For more information, see Function type signatures.

Parameters

d

(Required) Duration value to convert to SQL interval string.

Examples

Convert a duration to a SQL interval

import "experimental/iox"

iox.sqlInterval(
    d: 1y2mo3w4d5h6m7s8ms,
)// Returns 1 years 2 months 3 weeks 4 days 5 hours 6 minutes 7 seconds 8 milliseconds

Use a Flux duration to define a SQL interval

import "experimental/iox"

windowInterval = 1d12h
sqlQuery = "
SELECT
  DATE_BIN(INTERVAL '${iox.sqlInterval(d: windowInterval)}', time, TIMESTAMP '2023-01-01T00:00:00Z')
  COUNT(field1)
FROM
  measurement
GROUP BY
  time
"

iox.sql(bucket: "example-bucket", query: sqlQuery)

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InfluxDB Cloud backed by InfluxDB IOx

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InfluxDB Cloud backed by InfluxDB TSM

All InfluxDB Cloud organizations created on or after January 31, 2023 are backed by the new InfluxDB IOx storage engine which enables nearly unlimited series cardinality and SQL query support. Check the right column of your InfluxDB Cloud organization homepage to see which InfluxDB storage engine you’re using.

If powered by TSM, this is the correct documentation.

If powered by IOx, see the IOx-based InfluxDB Cloud documentation.

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