Hey,
I'm trying to use an array of text as input in a C function in a custom extension.
the prototype of the sql function is :
CREATE OR REPLACE FUNCTION pc_subset( dimensions TEXT[])
it is called like :
pc_subset( ARRAY['X'::text,'Y'::text])
and the C function trying to read the text array (converting it to cstring ) :
char ** cstring_array;
nelems = ARR_DIMS(arrptr)[0];
vals = (text**) ARR_DATA_PTR(arrptr);
cstring_array = (char **) pcalloc(nelems * sizeof(char * ) );
for (i3=0;i3<nelems;i3++)
{
cstring_array[i3] = text_to_cstring( vals[i3]);
elog(INFO, "elem %d of dim_array : %s\n",i3,cstring_array[i3]);
}
I crashes postgres because of a segfault.
Any help appreciated =)
Cheers,
Rémi-C