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SingleStoreDB v8.1

GEOGRAPHY_CONTAINS

This function takes in two geospatial objects and determines whether the first one completely covers the area of the second.

contains.png

Syntax

GEOGRAPHY_CONTAINS ( geo1, geo2 )

Arguments

  • geo1, geo2: any valid geospatial object or WKT string: path, point or polygon.

Return Type

Boolean

Remarks

When specifying a polygon, it must be smaller than one half of the Earth.

Examples

CREATE ROWSTORE TABLE neighborhoods (
  id INT UNSIGNED NOT NULL PRIMARY KEY,
  name VARCHAR(64) NOT NULL,
  population INT UNSIGNED NOT NULL,
  shape GEOGRAPHY NOT NULL,
  centroid GEOGRAPHYPOINT NOT NULL,
  index (shape) WITH (resolution = 8),
  index (centroid)
  );

  INSERT INTO neighborhoods VALUES
  (1, "Hamilton", 12346, "POLYGON((1 1,2 1,2 2, 1 2, 1 1))","POINT(1.5 1.5)"),
  (2, "Probability Bay", 263951, "POLYGON((5 1,6 1,6 2,5 2,5 1))", "POINT(5.5 1.5)"),
  (3, "Decentralized Park", 29265, "POLYGON((5 5,6 5,6 6,5 6,5 5))", "POINT(5.5 5.5)"),
  (4, "Axiom Township", 845696, "POLYGON((1 5,2 5,2 6,1 6,1 5))", "POINT(1.5 5.5)"),
  (5, "Elegant Island ", 987654, "POLYGON((3 3,4 3,4 4,3 4,3 3))", "POINT(3.5 3.5)");
SELECT id, name FROM neighborhoods
WHERE
  GEOGRAPHY_CONTAINS(shape, "POLYGON((3 3,4 3,4 4,3 4,3 3))");
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