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/*
* makefuncs.c--
* creator functions for primitive nodes. The functions here are for
* the most frequently created nodes.
*
* Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/makefuncs.c,v 1.1.1.1 1996/07/09 06:21:32 scrappy Exp $
*
* NOTES
* Creator functions in POSTGRES 4.2 are generated automatically. Most of
* them are rarely used. Now we don't generate them any more. If you want
* one, you have to write it yourself.
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
* Andrew Yu Oct 20, 1994 file creation
*/
#include "postgres.h"
#include "nodes/pg_list.h"
#include "nodes/primnodes.h"
#include "nodes/makefuncs.h"
/*
* makeOper -
* creates an Oper node
*/
Oper *
makeOper(Oid opno,
Oid opid,
Oid opresulttype,
int opsize,
FunctionCachePtr op_fcache)
{
Oper *oper = makeNode(Oper);
oper->opno = opno;
oper->opid = opid;
oper->opresulttype = opresulttype;
oper->opsize = opsize;
oper->op_fcache = op_fcache;
return oper;
}
/*
* makeVar -
* creates a Var node
*
*/
Var *
makeVar(Index varno,
AttrNumber varattno,
Oid vartype,
Index varnoold,
AttrNumber varoattno)
{
Var *var = makeNode(Var);
var->varno = varno;
var->varattno = varattno;
var->vartype = vartype;
var->varnoold = varnoold;
var->varoattno = varoattno;
return var;
}
/*
* makeResdom -
* creates a Resdom (Result Domain) node
*/
Resdom *
makeResdom(AttrNumber resno,
Oid restype,
int reslen,
char *resname,
Index reskey,
Oid reskeyop,
int resjunk)
{
Resdom *resdom = makeNode(Resdom);
resdom->resno = resno;
resdom->restype = restype;
resdom->reslen = reslen;
resdom->resname = resname;
resdom->reskey = reskey;
resdom->reskeyop = reskeyop;
resdom->resjunk = resjunk;
return resdom;
}
/*
* makeConst -
* creates a Const node
*/
Const *
makeConst(Oid consttype,
Size constlen,
Datum constvalue,
bool constisnull,
bool constbyval,
bool constisset)
{
Const *cnst = makeNode(Const);
cnst->consttype = consttype;
cnst->constlen = constlen;
cnst->constvalue = constvalue;
cnst->constisnull = constisnull;
cnst->constbyval = constbyval;
cnst->constisset = constisset;
return cnst;
}
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