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JavaScript admin.databaseGeospatialRegionPathIndex

MarkLogic 12 EA 1 Product Documentation
admin:database-geospatial-region-path-index

admin:database-geospatial-region-path-index(
   $pathexpr as xs:string,
   $coordinate-system as xs:string,
   $geohash-precision as xs:integer,
   $invalid-values as xs:string,
   [$units as xs:string?]
) as element(db:geospatial-region-path-index)

Summary

This function constructs a geospatial region path index specification.

Parameters
pathexpr The path expression for the index. The path should return true from cts:valid-index-path.
coordinate-system The coordinate system. Must be one of wgs84, wgs84/double, etrs89, etrs89/double, raw, raw/double.
geohash-precision Specify the precision of the geohashes to use in the index. Higher numbers result in a more precise index and faster queries, at the expense of increased index size and slower ingestion speed. Value must be between 2 and 6 (inclusive) if using a single precision coordinate system; between 3 and 6 if double precision. Ignored for raw and raw/double coordinate systems.
invalid-values Specify how to handle values that cannot be parsed as regions. Must be one of: reject or ignore.
units Measure distance and the radii of circles in the specified units. Allowed values: miles (default), km, feet, meters.

Example


xquery version "1.0-ml";
import module namespace admin = "http://marklogic.com/xdmp/admin"
          at "/MarkLogic/admin.xqy";

admin:database-geospatial-region-path-index(
    "//kml:LinearRing/kml:coordinates", "wgs84", 2, "reject", "miles")

(: A geospatial region path index specification :)

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