Documentation

tableFind() function

tableFind() extracts the first table in a stream with group key values that match a specified predicate.

Function type signature
(<-tables: stream[B], fn: (key: A) => bool) => stream[B] where A: Record, B: Record
For more information, see Function type signatures.

Parameters

fn

(Required) Predicate function to evaluate input table group keys.

tableFind() returns the first table that resolves as true. The predicate function requires a key argument that represents each input table’s group key as a record.

tables

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

Examples

Extract a table from a stream of tables

import "sampledata"

t =
    sampledata.int()
        |> tableFind(fn: (key) => key.tag == "t2")// t represents the first table in a stream whose group key
// contains "tag" with a value of "t2".



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