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JavaScript cts.max

MarkLogic Server 11.0 Product Documentation
cts:max

cts:max(
   $range-index as cts:reference,
   [$options as xs:string*],
   [$query as cts:query?],
   [$forest-ids as xs:unsignedLong*]
) as xs:anyAtomicType?

Summary

Returns the maximal value given a value lexicon. This function performs the calculation in parallel in all data nodes then aggregates the values. It generally performs better than fn:max, especially on large clusters.

Parameters
range-index Reference to a range index.
options Same as the "options" parameter in cts:aggregate.
query Same as the "query" parameter in cts:aggregate.
forest-ids Same as the "forest-ids" parameter in cts:aggregate.

Example

xquery version "1.0-ml";

  (:
     This query assumes an element range index is configured
     in the database for the 'Amount' element.
  :)

cts:max(cts:element-reference(xs:QName("Amount")))

=> 162.9500000000000034

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