ST_IsValid

Checks whether a geometry meets the rules of a valid spatial object according to the OGC standard.

Usage

boolean ST_IsValid(geom: geometry)

Arguments

• geom (geometry): Input geometry

Description

Returns true if the geometry is well-formed according to OGC rules. Use ST_IsValidReason to get a diagnostic message for invalid geometries and ST_MakeValid to attempt to repair them.

Examples

SELECT ST_IsValid(
    ST_GeomFromText('POLYGON ((0 0, 2 0, 2 2, 1 1, 0 2, 0 0))')
) AS is_valid;

┌──────────┐
│ is_valid │
│  boolean │
╞══════════╡
│ true     │
└──────────┘