static PlannedStmt*
get_combiner_plan(ContinuousView *view)
{
List *parsetree_list;
SelectStmt *selectstmt;
PlannedStmt *result;
parsetree_list = pg_parse_query(view->query);
Assert(list_length(parsetree_list) == 1);
selectstmt = (SelectStmt *) linitial(parsetree_list);
selectstmt = TransformSelectStmtForContProcess(view->matrel, selectstmt, NULL, Combiner);
join_search_hook = get_combiner_join_rel;
PG_TRY();
{
result = get_plan_from_stmt(view->id, (Node *) selectstmt, view->query, true);
join_search_hook = NULL;
post_parse_analyze_hook = NULL;
}
PG_CATCH();
{
/*
* These hooks won't be reset if there's an error, so we need to make
* sure that they're not set for whatever query is run next in this xact.
*/
join_search_hook = NULL;
post_parse_analyze_hook = NULL;
PG_RE_THROW();
}
PG_END_TRY();
return result;
}
static PlannedStmt*
get_worker_plan(ContinuousView *view)
{
List *parsetree_list;
SelectStmt *selectstmt;
parsetree_list = pg_parse_query(view->query);
Assert(list_length(parsetree_list) == 1);
selectstmt = (SelectStmt *) linitial(parsetree_list);
selectstmt = TransformSelectStmtForContProcess(view->matrel, selectstmt, NULL, Worker);
return get_plan_from_stmt(view->id, (Node *) selectstmt, view->query, selectstmt->forCombiner);
}
static SelectStmt *
get_worker_select_stmt(ContinuousView* view, SelectStmt** viewptr)
{
List *parsetree_list;
SelectStmt *selectstmt;
parsetree_list = pg_parse_query(view->query);
Assert(list_length(parsetree_list) == 1);
selectstmt = (SelectStmt *) linitial(parsetree_list);
selectstmt->swStepFactor = view->sw_step_factor;
selectstmt = TransformSelectStmtForContProcess(view->matrel, selectstmt,
viewptr, Worker);
return selectstmt;
}