ST_IsValid
Signature
BOOLEAN ST_IsValid(GEOMETRY geom);Description
Returns true if geom is valid.
We have the following equivalence:
ST_IsValid(geom) = ARRAY_GET(ST_IsValidDetail(geom), 1)
Examples
SELECT ST_IsValid('POLYGON((0 0, 10 0, 10 5, 0 5, 0 0))');
-- Answer: TRUE
SELECT ST_IsValid('POLYGON((0 0, 10 0, 10 5, 6 -2, 0 0))');
-- Answer: FALSE