ST_IsValid
MariaDB starting with 11.8
ST_IsValid was added in MariaDB 11.8.
Syntax
ST_IsValid(g)
Description
Given a geometry input, returns 1 if the argument is geometrically valid, 0 if the argument is not geometrically valid.
Unlike ST_Validate, requires valid GIS data, or ERROR 3037 (22023): Invalid GIS data provided to function st_isvalid is returned.
Examples
SELECT ST_IsValid(ST_GeomFromText('LINESTRING (0 0, 1 1)')); +------------------------------------------------------+ | ST_IsValid(ST_GeomFromText('LINESTRING (0 0, 1 1)')) | +------------------------------------------------------+ | 1 | +------------------------------------------------------+ SELECT ST_IsValid(ST_GeomFromText('LINESTRING (0 0, 0 0)')); +------------------------------------------------------+ | ST_IsValid(ST_GeomFromText('LINESTRING (0 0, 0 0)')) | +------------------------------------------------------+ | 0 | +------------------------------------------------------+
A POINT requires both x and y co-ordinates:
SELECT ST_IsValid(ST_GeomFromText('POINT (0)')); ERROR 3037 (22023): Invalid GIS data provided to function st_isvalid.
See Also
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