The Ultimate Guide to High Availability with MariaDB

ST_IsValid

You are viewing an old version of this article. View the current version here.
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

Comments

Comments loading...
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.