ST_NumInteriorRing
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Name

ST_NumInteriorRing — Return the number of interior rings of the first polygon in the geometry. Synonym to ST_NumInteriorRings.

Synopsis

integer ST_NumInteriorRing(geometry a_polygon);

Description

Return the number of interior rings of the first polygon in the geometry. Synonym to ST_NumInteriorRings. The OpenGIS specs are ambiguous about the exact function naming, so we provide both spellings.

This method implements the SQL/MM specification: SQL-MM 3: 8.2.5

See Also

ST_NumInteriorRings

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ST_NumInteriorRings Home ST_NumPoints