The ST_Curve type is a supertype for types representing lines using a sequence of points.
Direct supertype Direct subtypes MethodsMethods of ST_Curve:
All methods of ST_Geometry type can also be called on a ST_Curve type:
RemarksThe ST_Curve type is a supertype for types representing lines using a sequence of points. Subtypes specify whether the control points are joined using straight segments (ST_LineString), circular segments (ST_CircularString) or a combination (ST_CompoundCurve).
The ST_Curve type is not instantiable.
An ST_Curve value is simple if it does not intersect itself (except possibly at the end points). If an ST_Curve value does intersect at its endpoints, it is closed. An ST_Curve value that is both simple and closed is called a ring.
Standards and compatibilitySQL/MM (ISO/IEC 13249-3: 2006) 7.1
ST_CurveToLine method
ST_EndPoint method
ST_IsClosed method
ST_IsRing method
ST_Length method
ST_StartPoint method
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