The Ultimate Guide to High Availability with MariaDB

ST_DIFFERENCE

Syntax

ST_DIFFERENCE(g1,g2)

Description

Returns a geometry representing the point set difference of the given geometry values.

Example

SET @g1 = POINT(10,10), @g2 = POINT(20,20);

SELECT ST_AsText(ST_Difference(@g1, @g2));
+------------------------------------+
| ST_AsText(ST_Difference(@g1, @g2)) |
+------------------------------------+
| POINT(10 10)                       |
+------------------------------------+

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