Function IsIndexAccessMethod

src/backend/access/index/amapi.c:25–34

is_index_access_method_hook_type is_index_access_method_hook = NULL;

bool
IsIndexAccessMethod(Oid relam, Oid indexAccessMethod)
{
	if ((is_index_access_method_hook && (*is_index_access_method_hook)(relam, indexAccessMethod)) ||
		(!is_index_access_method_hook && relam == indexAccessMethod))
	{
		return true;
	}
	return false;
}
/*
 * GetIndexAmRoutine - call the specified access method handler routine to get
 * its IndexAmRoutine struct, which will be palloc'd in the caller's context.