PostGIS  2.5.0dev-r@@SVN_REVISION@@
Datum pgis_geometry_clusterintersecting_finalfn ( PG_FUNCTION_ARGS  )

Definition at line 330 of file lwgeom_accum.c.

References clusterintersecting_garray(), pgis_accum_finalfn(), and PGISDirectFunctionCall1().

331 {
332  pgis_abs *p;
333  Datum result = 0;
334  Datum geometry_array = 0;
335 
336  if (PG_ARGISNULL(0))
337  PG_RETURN_NULL();
338 
339  p = (pgis_abs*) PG_GETARG_POINTER(0);
340  geometry_array = pgis_accum_finalfn(p, CurrentMemoryContext, fcinfo);
341  result = PGISDirectFunctionCall1( clusterintersecting_garray, geometry_array );
342  if (!result)
343  PG_RETURN_NULL();
344 
345  PG_RETURN_DATUM(result);
346 }
Datum pgis_accum_finalfn(pgis_abs *p, MemoryContext mctx, FunctionCallInfo fcinfo)
The final function rescues the built array from the side memory context using the PostgreSQL built-in...
Definition: lwgeom_accum.c:182
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:384
Datum clusterintersecting_garray(PG_FUNCTION_ARGS)
To pass the internal ArrayBuildState pointer between the transfn and finalfn we need to wrap it into ...
Definition: lwgeom_accum.c:83

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