1GEOS_Error - invalid Linestring (collapses to a Point) 2:memory: #use in-memory database 3SELECT ST_IsValid(ST_GeomFromText('LINESTRING(1 1, 1 1, 1 1)')), GEOS_GetLastWarningMsg(), GEOS_GetLastErrorMsg(), GEOS_GetLastAuxErrorMsg(), ST_AsText(GEOS_GetCriticalPointFromMsg()); 41 # rows (not including the header row) 55 # columns 6ST_IsValid(ST_GeomFromText('LINESTRING(1 1, 1 1, 1 1)')) 7GEOS_GetLastWarningMsg() 8GEOS_GetLastErrorMsg() 9GEOS_GetLastAuxErrorMsg() 10ST_AsText(GEOS_GetCriticalPointFromMsg()) 110 12Too few points in geometry component at or near point 1 1 13(NULL) 14(NULL) 15POINT(1 1) 16 17 18 19