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preview plugin

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Returns a table with up to the specified number of rows from the input record set, and the total number of records in the input record set.

T | evaluate preview(50)

Syntax

T | evaluate preview( NumberOfRows )

Returns

The preview plugin returns two result tables:

  • A table with up to the specified number of rows. For example, the sample query above is equivalent to running T | take 50.
  • A table with a single row/column, holding the number of records in the input record set. For example, the sample query above is equivalent to running T | count.

Tip

If evaluate is preceded by a tabular source that includes a complex filter, or a filter that references most of the source table columns, prefer to use the materialize function. For example:

let MaterializedT = materialize(T);
MaterializedT | evaluate preview(50)