diff options
Diffstat (limited to 'src/include/nodes/plannodes.h')
| -rw-r--r-- | src/include/nodes/plannodes.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/include/nodes/plannodes.h b/src/include/nodes/plannodes.h index 537981462b..5a7445f69c 100644 --- a/src/include/nodes/plannodes.h +++ b/src/include/nodes/plannodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/plannodes.h,v 1.91 2007/02/20 17:32:17 tgl Exp $ + * $PostgreSQL: pgsql/src/include/nodes/plannodes.h,v 1.92 2007/02/22 22:00:25 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -48,6 +48,8 @@ typedef struct PlannedStmt IntoClause *into; /* target for SELECT INTO / CREATE TABLE AS */ + List *subplans; /* Plan trees for SubPlan expressions */ + /* * If the query has a returningList then the planner will store a list of * processed targetlists (one per result relation) here. We must have a @@ -65,6 +67,10 @@ typedef struct PlannedStmt int nParamExec; /* number of PARAM_EXEC Params used */ } PlannedStmt; +/* macro for fetching the Plan associated with a SubPlan node */ +#define exec_subplan_get_plan(plannedstmt, subplan) \ + ((Plan *) list_nth((plannedstmt)->subplans, (subplan)->plan_id - 1)) + /* ---------------- * Plan node @@ -313,12 +319,17 @@ typedef struct TidScan * the generic lefttree field as you might expect. This is because we do * not want plan-tree-traversal routines to recurse into the subplan without * knowing that they are changing Query contexts. + * + * Note: subrtable is used just to carry the subquery rangetable from + * createplan.c to setrefs.c; it should always be NIL by the time the + * executor sees the plan. * ---------------- */ typedef struct SubqueryScan { Scan scan; Plan *subplan; + List *subrtable; /* temporary workspace for planner */ } SubqueryScan; /* ---------------- |