rdelaage
/
postgresql
mirror of https://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Define JoinExpr structure for outer join syntax. 

Clean up comments in execnodes.h.
This commit is contained in:
Thomas G. Lockhart 1999-02-23 07:55:24 +00:00
parent 70600bd6f1
commit 0a8e9c4e7f
3 changed files with 18 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/include/nodes/execnodes.h
View File

@ -6,7 +6,7 @@
* *
* Copyright (c) 1994, Regents of the University of California * Copyright (c) 1994, Regents of the University of California
* *
* $Id: execnodes.h,v 1.24 1999/02/13 23:21:37 momjian Exp $ * $Id: execnodes.h,v 1.25 1999/02/23 07:55:23 thomas Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -607,7 +607,7 @@ typedef struct GroupState
* SortState information * SortState information
* *
*| sort nodes are really just a kind of a scan since *| sort nodes are really just a kind of a scan since
*| we implement sorts by retrieveing the entire subplan *| we implement sorts by retrieving the entire subplan
*| into a temp relation, sorting the temp relation into *| into a temp relation, sorting the temp relation into
*| another sorted relation, and then preforming a simple *| another sorted relation, and then preforming a simple
*| unqualified sequential scan on the sorted relation.. *| unqualified sequential scan on the sorted relation..

4
src/include/nodes/nodes.h
View File

@ -6,7 +6,7 @@
* *
* Copyright (c) 1994, Regents of the University of California * Copyright (c) 1994, Regents of the University of California
* *
* $Id: nodes.h,v 1.43 1999/02/13 23:21:38 momjian Exp $ * $Id: nodes.h,v 1.44 1999/02/23 07:55:24 thomas Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -215,7 +215,7 @@ typedef enum NodeTag
T_SortClause, T_SortClause,
T_GroupClause, T_GroupClause,
T_SubSelect, T_SubSelect,
T_JoinUsing, T_JoinExpr,
T_CaseExpr, T_CaseExpr,
T_CaseWhen, T_CaseWhen,
T_RowMark T_RowMark

28
src/include/nodes/parsenodes.h
View File

@ -6,7 +6,7 @@
* *
* Copyright (c) 1994, Regents of the University of California * Copyright (c) 1994, Regents of the University of California
* *
* $Id: parsenodes.h,v 1.70 1999/02/13 23:21:39 momjian Exp $ * $Id: parsenodes.h,v 1.71 1999/02/23 07:55:24 thomas Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -149,7 +149,7 @@ typedef struct CreateStmt
typedef enum ConstrType /* type of constaints */ typedef enum ConstrType /* type of constaints */
{ {
CONSTR_NONE, CONSTR_NOTNULL, CONSTR_DEFAULT, CONSTR_CHECK, CONSTR_PRIMARY, CONSTR_UNIQUE CONSTR_NULL, CONSTR_NOTNULL, CONSTR_DEFAULT, CONSTR_CHECK, CONSTR_PRIMARY, CONSTR_UNIQUE
} ConstrType; } ConstrType;
typedef struct Constraint typedef struct Constraint
@ -671,7 +671,6 @@ typedef struct SelectStmt
List *forUpdate; /* FOR UPDATE clause */ List *forUpdate; /* FOR UPDATE clause */
} SelectStmt; } SelectStmt;
/**************************************************************************** /****************************************************************************
* Supporting data structures for Parse Trees * Supporting data structures for Parse Trees
****************************************************************************/ ****************************************************************************/
@ -854,17 +853,6 @@ typedef struct SortGroupBy
Node *node; /* Expression */ Node *node; /* Expression */
} SortGroupBy; } SortGroupBy;
/*
* JoinUsing - for JOIN USING clause
*/
typedef struct JoinUsing
{
NodeTag type;
int resno; /* target number */
char *range;
char *name; /* name of column to sort on */
} JoinUsing;
/* /*
* RangeVar - range variable, used in FROM clauses * RangeVar - range variable, used in FROM clauses
*/ */
@ -898,6 +886,18 @@ typedef struct DefElem
Node *arg; /* a (Value *) or a (TypeName *) */ Node *arg; /* a (Value *) or a (TypeName *) */
} DefElem; } DefElem;
/*
* JoinExpr - for JOIN expressions
*/
typedef struct JoinExpr
{
NodeTag type;
int jointype;
RangeVar *larg;
Node *rarg;
List *quals;
} JoinExpr;
/**************************************************************************** /****************************************************************************
* Nodes for a Query tree * Nodes for a Query tree