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-rw-r--r--src/backend/parser/analyze.c56
-rw-r--r--src/backend/parser/gram.y15
-rw-r--r--src/include/nodes/nodes.h3
-rw-r--r--src/include/nodes/parsenodes.h21
4 files changed, 26 insertions, 69 deletions
diff --git a/src/backend/parser/analyze.c b/src/backend/parser/analyze.c
index 8aea3569277..d806ec2059c 100644
--- a/src/backend/parser/analyze.c
+++ b/src/backend/parser/analyze.c
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.62 1998/01/09 20:05:49 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.63 1998/01/10 04:29:47 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -39,7 +39,7 @@ static Query *transformExtendStmt(ParseState *pstate, ExtendStmt *stmt);
static Query *transformRuleStmt(ParseState *query, RuleStmt *stmt);
static Query *transformSelectStmt(ParseState *pstate, SelectStmt *stmt);
static Query *transformUpdateStmt(ParseState *pstate, UpdateStmt *stmt);
-static Query *transformCursorStmt(ParseState *pstate, CursorStmt *stmt);
+static Query *transformCursorStmt(ParseState *pstate, SelectStmt *stmt);
static Query *transformCreateStmt(ParseState *pstate, CreateStmt *stmt);
List *extras = NIL;
@@ -175,12 +175,11 @@ transformStmt(ParseState *pstate, Node *parseTree)
result = transformUpdateStmt(pstate, (UpdateStmt *) parseTree);
break;
- case T_CursorStmt:
- result = transformCursorStmt(pstate, (CursorStmt *) parseTree);
- break;
-
case T_SelectStmt:
- result = transformSelectStmt(pstate, (SelectStmt *) parseTree);
+ if (!((SelectStmt *)parseTree)->portalname)
+ result = transformSelectStmt(pstate, (SelectStmt *) parseTree);
+ else
+ result = transformCursorStmt(pstate, (SelectStmt *) parseTree);
break;
default:
@@ -873,6 +872,9 @@ transformUpdateStmt(ParseState *pstate, UpdateStmt *stmt)
qry->rtable = pstate->p_rtable;
qry->resultRelation = refnameRangeTablePosn(pstate->p_rtable, stmt->relname);
+ if (pstate->p_numAgg > 0)
+ finalizeAggregates(pstate, qry);
+
/* make sure we don't have aggregates in the where clause */
if (pstate->p_numAgg > 0)
parseCheckAggregates(pstate, qry);
@@ -886,47 +888,15 @@ transformUpdateStmt(ParseState *pstate, UpdateStmt *stmt)
*
*/
static Query *
-transformCursorStmt(ParseState *pstate, CursorStmt *stmt)
+transformCursorStmt(ParseState *pstate, SelectStmt *stmt)
{
- Query *qry = makeNode(Query);
-
- /*
- * in the old days, a cursor statement is a 'retrieve into portal'; If
- * you change the following, make sure you also go through the code in
- * various places that tests the kind of operation.
- */
- qry->commandType = CMD_SELECT;
+ Query *qry;
- /* set up a range table */
- makeRangeTable(pstate, NULL, stmt->fromClause);
-
- qry->uniqueFlag = stmt->unique;
+ qry = transformSelectStmt(pstate, stmt);
qry->into = stmt->portalname;
qry->isPortal = TRUE;
qry->isBinary = stmt->binary; /* internal portal */
- /* fix the target list */
- qry->targetList = transformTargetList(pstate, stmt->targetList);
-
- /* fix where clause */
- qry->qual = transformWhereClause(pstate, stmt->whereClause);
-
- /* fix order clause */
- qry->sortClause = transformSortClause(pstate,
- stmt->sortClause,
- NIL,
- qry->targetList,
- qry->uniqueFlag);
- /* fix group by clause */
- qry->groupClause = transformGroupClause(pstate,
- stmt->groupClause,
- qry->targetList);
-
- qry->rtable = pstate->p_rtable;
-
- if (pstate->p_numAgg > 0)
- finalizeAggregates(pstate, qry);
-
- return (Query *) qry;
+ return qry;
}
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 1d9d59e95b2..d79fa91bd42 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.87 1998/01/09 21:26:12 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.88 1998/01/10 04:29:50 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -2226,12 +2226,13 @@ UpdateStmt: UPDATE relation_name
* CURSOR STATEMENTS
*
*****************************************************************************/
-
CursorStmt: DECLARE name opt_binary CURSOR FOR
- SELECT opt_unique res_target_list2
- from_clause where_clause group_clause sort_clause
+ SELECT opt_unique res_target_list2
+ from_clause where_clause
+ group_clause having_clause
+ union_clause sort_clause
{
- CursorStmt *n = makeNode(CursorStmt);
+ SelectStmt *n = makeNode(SelectStmt);
/* from PORTAL name */
/*
@@ -2251,7 +2252,9 @@ CursorStmt: DECLARE name opt_binary CURSOR FOR
n->fromClause = $9;
n->whereClause = $10;
n->groupClause = $11;
- n->sortClause = $12;
+ n->havingClause = $12;
+ n->unionClause = $13;
+ n->sortClause = $14;
$$ = (Node *)n;
}
;
diff --git a/src/include/nodes/nodes.h b/src/include/nodes/nodes.h
index d6d787c93a7..3f87ca202ac 100644
--- a/src/include/nodes/nodes.h
+++ b/src/include/nodes/nodes.h
@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
- * $Id: nodes.h,v 1.21 1998/01/09 21:13:43 momjian Exp $
+ * $Id: nodes.h,v 1.22 1998/01/10 04:30:08 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -145,7 +145,6 @@ typedef enum NodeTag
T_InsertStmt,
T_DeleteStmt,
T_UpdateStmt,
- T_CursorStmt,
T_SelectStmt,
T_AddAttrStmt,
T_AggregateStmt,
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index f898880f6de..9bc99568573 100644
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
- * $Id: parsenodes.h,v 1.41 1998/01/09 20:06:08 momjian Exp $
+ * $Id: parsenodes.h,v 1.42 1998/01/10 04:30:11 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -605,23 +605,6 @@ typedef struct UpdateStmt
} UpdateStmt;
/* ----------------------
- * Create Cursor Statement
- * ----------------------
- */
-typedef struct CursorStmt
-{
- NodeTag type;
- char *portalname; /* the portal (cursor) to create */
- bool binary; /* a binary (internal) portal? */
- char *unique; /* NULL, "*", or unique attribute name */
- List *targetList; /* the target list (of ResTarget) */
- List *fromClause; /* the from clause */
- Node *whereClause; /* qualifications */
- List *groupClause; /* group by clause */
- List *sortClause; /* sort clause (a list of SortGroupBy's) */
-} CursorStmt;
-
-/* ----------------------
* Select Statement
* ----------------------
*/
@@ -637,6 +620,8 @@ typedef struct SelectStmt
Node *havingClause; /* having conditional-expression */
List *unionClause; /* union subselect parameters */
List *sortClause; /* sort clause (a list of SortGroupBy's) */
+ char *portalname; /* the portal (cursor) to create */
+ bool binary; /* a binary (internal) portal? */
bool unionall; /* union without unique sort */
} SelectStmt;
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-28 10:03:01 +0000