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Commit6fcf2d7

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committed
New SubPlan node for subselects.
New PARAM_EXEC type.
1 parenteab1471 commit6fcf2d7

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5 files changed

+83
-30
lines changed

5 files changed

+83
-30
lines changed

‎src/include/nodes/execnodes.h

Lines changed: 27 additions & 24 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
*
77
* Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Id: execnodes.h,v 1.12 1997/09/08 21:52:40 momjian Exp $
9+
* $Id: execnodes.h,v 1.13 1998/02/13 03:45:22 vadim Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -80,16 +80,17 @@ typedef struct RelationInfo
8080
*/
8181
typedefstructExprContext
8282
{
83-
NodeTagtype;
84-
TupleTableSlot*ecxt_scantuple;
85-
TupleTableSlot*ecxt_innertuple;
86-
TupleTableSlot*ecxt_outertuple;
87-
Relationecxt_relation;
88-
Indexecxt_relid;
89-
ParamListInfoecxt_param_list_info;
90-
List*ecxt_range_table;
91-
Datum*ecxt_values;/* precomputed values for aggreg */
92-
char*ecxt_nulls;/* null flags for aggreg values */
83+
NodeTagtype;
84+
TupleTableSlot*ecxt_scantuple;
85+
TupleTableSlot*ecxt_innertuple;
86+
TupleTableSlot*ecxt_outertuple;
87+
Relationecxt_relation;
88+
Indexecxt_relid;
89+
ParamListInfoecxt_param_list_info;
90+
ParamExecData*ecxt_param_exec_vals;/* this is for subselects */
91+
List*ecxt_range_table;
92+
Datum*ecxt_values;/* precomputed values for aggreg */
93+
char*ecxt_nulls;/* null flags for aggreg values */
9394
}ExprContext;
9495

9596
/* ----------------
@@ -193,18 +194,19 @@ typedef struct JunkFilter
193194
*/
194195
typedefstructEState
195196
{
196-
NodeTagtype;
197-
ScanDirectiones_direction;
198-
List*es_range_table;
199-
RelationInfo*es_result_relation_info;
200-
Relationes_into_relation_descriptor;
201-
ParamListInfoes_param_list_info;
202-
intes_BaseId;
203-
TupleTablees_tupleTable;
204-
JunkFilter*es_junkFilter;
205-
int*es_refcount;
206-
uint32es_processed;/* # of tuples processed */
207-
Oides_lastoid;/* last oid processed (by INSERT) */
197+
NodeTagtype;
198+
ScanDirectiones_direction;
199+
List*es_range_table;
200+
RelationInfo*es_result_relation_info;
201+
Relationes_into_relation_descriptor;
202+
ParamListInfoes_param_list_info;
203+
ParamExecData*es_param_exec_vals;/* this is for subselects */
204+
intes_BaseId;
205+
TupleTablees_tupleTable;
206+
JunkFilter*es_junkFilter;
207+
int*es_refcount;
208+
uint32es_processed;/* # of tuples processed */
209+
Oides_lastoid;/* last oid processed (by INSERT) */
208210
}EState;
209211

210212
/* ----------------
@@ -292,7 +294,8 @@ typedef struct CommonState
292294
typedefstructResultState
293295
{
294296
CommonStatecstate;/* its first field is NodeTag */
295-
intrs_done;
297+
boolrs_done;
298+
boolrs_checkqual;
296299
}ResultState;
297300

298301
/* ----------------

‎src/include/nodes/nodes.h

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
*
77
* Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Id: nodes.h,v 1.23 1998/01/17 04:53:38 momjian Exp $
9+
* $Id: nodes.h,v 1.24 1998/02/13 03:45:23 vadim Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -47,6 +47,7 @@ typedef enum NodeTag
4747
T_Choose,
4848
T_Tee,
4949
T_Group,
50+
T_SubPlan,
5051

5152
/*---------------------
5253
* TAGS FOR PRIMITIVE NODES (primnodes.h)

‎src/include/nodes/params.h

Lines changed: 12 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
*
77
* Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Id: params.h,v 1.6 1997/09/08 21:52:48 momjian Exp $
9+
* $Id: params.h,v 1.7 1998/02/13 03:45:24 vadim Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -36,12 +36,16 @@
3636
*
3737
* PARAM_OLD:Same as PARAM_NEW, but in this case we refer to
3838
*the "OLD" tuple.
39+
*
40+
* PARAM_EXEC:Evaluated by executor. Used for subselect...
41+
*
3942
*/
4043

4144
#definePARAM_NAMED11
4245
#definePARAM_NUM12
4346
#definePARAM_NEW13
4447
#definePARAM_OLD14
48+
#definePARAM_EXEC15
4549
#definePARAM_INVALID100
4650

4751

@@ -87,4 +91,11 @@ typedef struct ParamListInfoData
8791

8892
typedefParamListInfoData*ParamListInfo;
8993

94+
typedefstructParamExecData
95+
{
96+
void*execPlan;/* plan must be executed to get param value */
97+
Datumvalue;
98+
boolisnull;
99+
}ParamExecData;
100+
90101
#endif/* PARAMS_H */

‎src/include/nodes/plannodes.h

Lines changed: 39 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
*
77
* Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Id: plannodes.h,v 1.13 1998/01/15 19:00:13 momjian Exp $
9+
* $Id: plannodes.h,v 1.14 1998/02/13 03:45:25 vadim Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -74,6 +74,24 @@ typedef struct Plan
7474
List*qual;/* Node* or List* ?? */
7575
structPlan*lefttree;
7676
structPlan*righttree;
77+
List*extParam;/* indices of _all_ _external_ PARAM_EXEC for
78+
* this plan in global es_param_exec_vals.
79+
* Params from setParam from initPlan-s
80+
* are not included, but their execParam-s
81+
* are here!!! */
82+
List*locParam;/* someones from setParam-s */
83+
List*chgParam;/* list of changed ones from the above */
84+
List*initPlan;/* Init Plan nodes (un-correlated expr subselects) */
85+
List*subPlan;/* Other SubPlan nodes */
86+
87+
/*
88+
* We really need in some TopPlan node to store range table and
89+
* resultRelation from Query there and get rid of Query itself
90+
* from Executor. Some other stuff like below could be put there, too.
91+
*/
92+
intnParamExec;/* Number of them in entire query. This is
93+
* to get Executor know about how many
94+
* param_exec there are in query plan. */
7795
}Plan;
7896

7997
/* ----------------
@@ -335,4 +353,24 @@ typedef struct Tee
335353
* plans */
336354
}Tee;
337355

356+
/* ---------------------
357+
*SubPlan node
358+
* ---------------------
359+
*/
360+
typedefstructSubPlan
361+
{
362+
NodeTagtype;
363+
Plan*plan;/* subselect plan itself */
364+
intplan_id;/* dummy thing because of we haven't
365+
* equal funcs for plan nodes... actually,
366+
* we could put *plan itself somewhere else
367+
* (TopPlan node ?)... */
368+
List*rtable;/* range table */
369+
List*setParam;/* non-correlated EXPR & EXISTS subqueries
370+
* have to set some Params for paren Plan */
371+
List*parParam;/* indices of corr. Vars from parent plan */
372+
SubLink*sublink;/* SubLink node for subselects in WHERE and HAVING */
373+
boolshutdown;/* shutdown plan if TRUE */
374+
}SubPlan;
375+
338376
#endif/* PLANNODES_H */

‎src/include/nodes/primnodes.h

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
*
77
* Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Id: primnodes.h,v 1.18 1998/02/10 16:04:27 momjian Exp $
9+
* $Id: primnodes.h,v 1.19 1998/02/13 03:45:29 vadim Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -86,15 +86,15 @@ typedef struct Fjoin
8686
*/
8787
typedefenumOpType
8888
{
89-
OP_EXPR,FUNC_EXPR,OR_EXPR,AND_EXPR,NOT_EXPR
89+
OP_EXPR,FUNC_EXPR,OR_EXPR,AND_EXPR,NOT_EXPR,SUBPLAN_EXPR
9090
}OpType;
9191

9292
typedefstructExpr
9393
{
9494
NodeTagtype;
9595
OidtypeOid;/* oid of the type of this expr */
9696
OpTypeopType;/* type of the op */
97-
Node*oper;/* could be Oper or Func */
97+
Node*oper;/* could be Oper or Funcor SubPlan*/
9898
List*args;/* list of argument nodes */
9999
}Expr;
100100

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