PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ pgis_geometry_makeline_finalfn()

Datum pgis_geometry_makeline_finalfn ( PG_FUNCTION_ARGS  )

Definition at line 281 of file lwgeom_accum.c.

References LWGEOM_makeline_garray(), PG_FUNCTION_INFO_V1(), pgis_accum_finalfn(), pgis_geometry_clusterintersecting_finalfn(), and PGISDirectFunctionCall1().

Referenced by pgis_geometry_polygonize_finalfn().

282 {
283  pgis_abs *p;
284  Datum result = 0;
285  Datum geometry_array = 0;
286 
287  if (PG_ARGISNULL(0))
288  PG_RETURN_NULL(); /* returns null iff no input values */
289 
290  p = (pgis_abs*) PG_GETARG_POINTER(0);
291 
292  geometry_array = pgis_accum_finalfn(p, CurrentMemoryContext, fcinfo);
293  result = PGISDirectFunctionCall1( LWGEOM_makeline_garray, geometry_array );
294  if (!result)
295  PG_RETURN_NULL();
296 
297  PG_RETURN_DATUM(result);
298 }
Datum pgis_accum_finalfn(pgis_abs *p, MemoryContext mctx, FunctionCallInfo fcinfo)
Datum LWGEOM_makeline_garray(PG_FUNCTION_ARGS)
Datum PGISDirectFunctionCall1(PGFunction func, Datum arg1)
A modified version of PostgreSQL's DirectFunctionCall1 which allows NULL results; this is required fo...
Definition: lwgeom_accum.c:360
To pass the internal ArrayBuildState pointer between the transfn and finalfn we need to wrap it into ...
Definition: lwgeom_accum.c:81
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