limit() function

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limit() returns the first n rows after the specified offset from each input table.

If an input table has less than offset + n rows, limit() returns all rows after the offset.

Function type signature

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Parameters

n

({{< req >}}) Maximum number of rows to return.

offset

Number of rows to skip per table before limiting to n. Default is 0.

tables

Input data. Default is piped-forward data (<-).

Examples

• Limit results to the first three rows in each table
• Limit results to the first three rows in each input table after the first two

Limit results to the first three rows in each table

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Input data

_time	_value	*tag
2021-01-01T00:00:00Z	-2	t1
2021-01-01T00:00:10Z	10	t1
2021-01-01T00:00:20Z	7	t1
2021-01-01T00:00:30Z	17	t1
2021-01-01T00:00:40Z	15	t1
2021-01-01T00:00:50Z	4	t1

_time	_value	*tag
2021-01-01T00:00:00Z	19	t2
2021-01-01T00:00:10Z	4	t2
2021-01-01T00:00:20Z	-3	t2
2021-01-01T00:00:30Z	19	t2
2021-01-01T00:00:40Z	13	t2
2021-01-01T00:00:50Z	1	t2

Output data

_time	_value	*tag
2021-01-01T00:00:00Z	-2	t1
2021-01-01T00:00:10Z	10	t1
2021-01-01T00:00:20Z	7	t1

_time	_value	*tag
2021-01-01T00:00:00Z	19	t2
2021-01-01T00:00:10Z	4	t2
2021-01-01T00:00:20Z	-3	t2

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Limit results to the first three rows in each input table after the first two