PlannerInfo Structure

Hi all,<br /><br />I created a function which needs build or find a relation (RelOptInfo).<br />The build is ok.<br
/>Onthe other hand, I can't find the relation. I have all informations that pg_plan_query has: querytree (Query),
cursorOptions(int), boundParams(ParamListInfo) and plan (PlannedStmt).<br /> So, how can I take RelOptInfo by these
parameters?<br />I thought in use "find_base_rel", but it needs the PlannerInfo structure that I don't have.<br />Do
yourecommend another function? How can I find PlannerInfo with parameters that I have (Eg.: PlannedStmt)?<br /><br
/>Thanks,<br/>Ana Carolina<br /><br /><br />