GEOGRAPHY_ INTERSECTS
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This function takes in two geospatial objects and determines whether any part of them overlap.
Syntax
GEOGRAPHY_INTERSECTS ( geo1, geo2 )
Arguments
-
geo1, geo2: any valid geospatial object or WKT string: path, point or polygon.
Important
If both geo1 and geo2 are points, this function only returns true if they are identical.
Return Type
Boolean
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 neighborhoodsWHEREGEOGRAPHY_INTERSECTS("POINT(3.94990499 3.69150746)", shape);
+----+----------------+
| id | name |
+----+----------------+
| 5 | Elegant Island |
+----+----------------+
SELECT *FROM neighborhoods WITH (index = shape, resolution = 16)WHERE GEOGRAPHY_INTERSECTS(shape,"POLYGON(...)");
Important
The with (index = c, resolution = n)
syntax is an optional optimization discussed in the section Special Spatial Tuning Parameters.
Related Topics
For more information about working with geospatial data, see Working with Geospatial Features.
Last modified: February 24, 2023