New PARAM_EXEC type.
*
* Copyright (c) 1994, Regents of the University of California
*
- * $Id: execnodes.h,v 1.12 1997/09/08 21:52:40 momjian Exp $
+ * $Id: execnodes.h,v 1.13 1998/02/13 03:45:22 vadim Exp $
*
*-------------------------------------------------------------------------
*/
*/
typedef struct ExprContext
{
- NodeTag type;
- TupleTableSlot *ecxt_scantuple;
- TupleTableSlot *ecxt_innertuple;
- TupleTableSlot *ecxt_outertuple;
- Relation ecxt_relation;
- Index ecxt_relid;
- ParamListInfo ecxt_param_list_info;
- List *ecxt_range_table;
- Datum *ecxt_values; /* precomputed values for aggreg */
- char *ecxt_nulls; /* null flags for aggreg values */
+ NodeTag type;
+ TupleTableSlot *ecxt_scantuple;
+ TupleTableSlot *ecxt_innertuple;
+ TupleTableSlot *ecxt_outertuple;
+ Relation ecxt_relation;
+ Index ecxt_relid;
+ ParamListInfo ecxt_param_list_info;
+ ParamExecData *ecxt_param_exec_vals; /* this is for subselects */
+ List *ecxt_range_table;
+ Datum *ecxt_values; /* precomputed values for aggreg */
+ char *ecxt_nulls; /* null flags for aggreg values */
} ExprContext;
/* ----------------
*/
typedef struct EState
{
- NodeTag type;
- ScanDirection es_direction;
- List *es_range_table;
- RelationInfo *es_result_relation_info;
- Relation es_into_relation_descriptor;
- ParamListInfo es_param_list_info;
- int es_BaseId;
- TupleTable es_tupleTable;
- JunkFilter *es_junkFilter;
- int *es_refcount;
- uint32 es_processed; /* # of tuples processed */
- Oid es_lastoid; /* last oid processed (by INSERT) */
+ NodeTag type;
+ ScanDirection es_direction;
+ List *es_range_table;
+ RelationInfo *es_result_relation_info;
+ Relation es_into_relation_descriptor;
+ ParamListInfo es_param_list_info;
+ ParamExecData *es_param_exec_vals; /* this is for subselects */
+ int es_BaseId;
+ TupleTable es_tupleTable;
+ JunkFilter *es_junkFilter;
+ int *es_refcount;
+ uint32 es_processed; /* # of tuples processed */
+ Oid es_lastoid; /* last oid processed (by INSERT) */
} EState;
/* ----------------
typedef struct ResultState
{
CommonState cstate; /* its first field is NodeTag */
- int rs_done;
+ bool rs_done;
+ bool rs_checkqual;
} ResultState;
/* ----------------
*
* Copyright (c) 1994, Regents of the University of California
*
- * $Id: nodes.h,v 1.23 1998/01/17 04:53:38 momjian Exp $
+ * $Id: nodes.h,v 1.24 1998/02/13 03:45:23 vadim Exp $
*
*-------------------------------------------------------------------------
*/
T_Choose,
T_Tee,
T_Group,
+ T_SubPlan,
/*---------------------
* TAGS FOR PRIMITIVE NODES (primnodes.h)
*
* Copyright (c) 1994, Regents of the University of California
*
- * $Id: params.h,v 1.6 1997/09/08 21:52:48 momjian Exp $
+ * $Id: params.h,v 1.7 1998/02/13 03:45:24 vadim Exp $
*
*-------------------------------------------------------------------------
*/
*
* PARAM_OLD: Same as PARAM_NEW, but in this case we refer to
* the "OLD" tuple.
+ *
+ * PARAM_EXEC: Evaluated by executor. Used for subselect...
+ *
*/
#define PARAM_NAMED 11
#define PARAM_NUM 12
#define PARAM_NEW 13
#define PARAM_OLD 14
+#define PARAM_EXEC 15
#define PARAM_INVALID 100
typedef ParamListInfoData *ParamListInfo;
+typedef struct ParamExecData
+{
+ void *execPlan; /* plan must be executed to get param value */
+ Datum value;
+ bool isnull;
+} ParamExecData;
+
#endif /* PARAMS_H */
*
* Copyright (c) 1994, Regents of the University of California
*
- * $Id: plannodes.h,v 1.13 1998/01/15 19:00:13 momjian Exp $
+ * $Id: plannodes.h,v 1.14 1998/02/13 03:45:25 vadim Exp $
*
*-------------------------------------------------------------------------
*/
List *qual; /* Node* or List* ?? */
struct Plan *lefttree;
struct Plan *righttree;
+ List *extParam; /* indices of _all_ _external_ PARAM_EXEC for
+ * this plan in global es_param_exec_vals.
+ * Params from setParam from initPlan-s
+ * are not included, but their execParam-s
+ * are here!!! */
+ List *locParam; /* someones from setParam-s */
+ List *chgParam; /* list of changed ones from the above */
+ List *initPlan; /* Init Plan nodes (un-correlated expr subselects) */
+ List *subPlan; /* Other SubPlan nodes */
+
+ /*
+ * We really need in some TopPlan node to store range table and
+ * resultRelation from Query there and get rid of Query itself
+ * from Executor. Some other stuff like below could be put there, too.
+ */
+ int nParamExec; /* Number of them in entire query. This is
+ * to get Executor know about how many
+ * param_exec there are in query plan. */
} Plan;
/* ----------------
* plans */
} Tee;
+/* ---------------------
+ * SubPlan node
+ * ---------------------
+ */
+typedef struct SubPlan
+{
+ NodeTag type;
+ Plan *plan; /* subselect plan itself */
+ int plan_id; /* dummy thing because of we haven't
+ * equal funcs for plan nodes... actually,
+ * we could put *plan itself somewhere else
+ * (TopPlan node ?)... */
+ List *rtable; /* range table */
+ List *setParam; /* non-correlated EXPR & EXISTS subqueries
+ * have to set some Params for paren Plan */
+ List *parParam; /* indices of corr. Vars from parent plan */
+ SubLink *sublink; /* SubLink node for subselects in WHERE and HAVING */
+ bool shutdown; /* shutdown plan if TRUE */
+} SubPlan;
+
#endif /* PLANNODES_H */
*
* Copyright (c) 1994, Regents of the University of California
*
- * $Id: primnodes.h,v 1.18 1998/02/10 16:04:27 momjian Exp $
+ * $Id: primnodes.h,v 1.19 1998/02/13 03:45:29 vadim Exp $
*
*-------------------------------------------------------------------------
*/
*/
typedef enum OpType
{
- OP_EXPR, FUNC_EXPR, OR_EXPR, AND_EXPR, NOT_EXPR
+ OP_EXPR, FUNC_EXPR, OR_EXPR, AND_EXPR, NOT_EXPR, SUBPLAN_EXPR
} OpType;
typedef struct Expr
NodeTag type;
Oid typeOid; /* oid of the type of this expr */
OpType opType; /* type of the op */
- Node *oper; /* could be Oper or Func */
+ Node *oper; /* could be Oper or Func or SubPlan */
List *args; /* list of argument nodes */
} Expr;
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