array_concat

The array_concat function in APL (Axiom Processing Language) concatenates two or more arrays into a single array. Use this function when you need to merge multiple arrays into a single array structure. It’s particularly useful for situations where you need to handle and combine collections of elements across different fields or sources, such as log entries, OpenTelemetry trace data, or security logs.

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For users of other query languages

If you come from other query languages, this section explains how to adjust your existing queries to achieve the same results in APL.

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Usage

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Syntax

array_concat(array1, array2, ...)

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Parameters

• array1: The first array to concatenate.
• array2: The second array to concatenate.
• ...: Additional arrays to concatenate.

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Returns

An array containing all elements from the input arrays in the order they are provided.

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Use case examples

• Log analysis
• OpenTelemetry traces
• Security logs

['sample-http-logs']
| take 50
| summarize combined_requests = array_concat(pack_array(uri), pack_array(method))

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List of related functions

• array_length: Returns the number of elements in an array.
• array_index_of: Finds the index of an element in an array.
• array_slice: Extracts a subset of elements from an array.