geo.ST_LineString() function

geo.ST_LineString() converts a series of geographic points into linestring.

Group data into meaningful, ordered paths to before converting to linestring. Rows in each table must have lat and lon columns. Output tables contain a single row with a st_linestring column containing the resulting linestring.

Function type signature

(<-tables: stream[{A with lon: C, lat: B}]) => stream[D] where D: Record

Parameters

tables

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

Examples

Convert a series of geographic points into linestring

import "experimental/geo"

data
    |> geo.ST_LineString()