diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index e2567ff8e44..f0f40e002e1 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.321 2006/08/10 02:36:29 tgl Exp $ + * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.322 2006/08/12 02:52:06 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -104,6 +104,8 @@ typedef struct Query List *targetList; /* target list (of TargetEntry) */ + List *returningList; /* return-values list (of TargetEntry) */ + List *groupClause; /* a list of GroupClause's */ Node *havingQual; /* qualifications applied to groups */ @@ -125,10 +127,23 @@ typedef struct Query * tree, the planner will add all the child tables to the rtable and store * a list of the rtindexes of all the result relations here. This is done * at plan time, not parse time, since we don't want to commit to the - * exact set of child tables at parse time. This field ought to go in + * exact set of child tables at parse time. XXX This field ought to go in * some sort of TopPlan plan node, not in the Query. */ List *resultRelations; /* integer list of RT indexes, or NIL */ + + /* + * 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 separate RETURNING targetlist for each result rel because + * column numbers may vary within an inheritance tree. In the targetlists, + * Vars referencing the result relation will have their original varno + * and varattno, while Vars referencing other rels will be converted + * to have varno OUTER and varattno referencing a resjunk entry in the + * top plan node's targetlist. XXX This field ought to go in some sort of + * TopPlan plan node, not in the Query. + */ + List *returningLists; /* list of lists of TargetEntry, or NIL */ } Query; @@ -648,6 +663,7 @@ typedef struct InsertStmt RangeVar *relation; /* relation to insert into */ List *cols; /* optional: names of the target columns */ Node *selectStmt; /* the source SELECT/VALUES, or NULL */ + List *returningList; /* list of expressions to return */ } InsertStmt; /* ---------------------- @@ -658,8 +674,9 @@ typedef struct DeleteStmt { NodeTag type; RangeVar *relation; /* relation to delete from */ - Node *whereClause; /* qualifications */ List *usingClause; /* optional using clause for more tables */ + Node *whereClause; /* qualifications */ + List *returningList; /* list of expressions to return */ } DeleteStmt; /* ---------------------- @@ -673,6 +690,7 @@ typedef struct UpdateStmt List *targetList; /* the target list (of ResTarget) */ Node *whereClause; /* qualifications */ List *fromClause; /* optional from clause for more tables */ + List *returningList; /* list of expressions to return */ } UpdateStmt; /* ---------------------- |