copyfuncs.c

PostgreSQL7.4.6 for Linux

	COPY_NODE_FIELD(refupperindexpr);
	COPY_NODE_FIELD(reflowerindexpr);
	COPY_NODE_FIELD(refexpr);
	COPY_NODE_FIELD(refassgnexpr);

	return newnode;
}

/*
 * _copyFuncExpr
 */
static FuncExpr *
_copyFuncExpr(FuncExpr *from)
{
	FuncExpr   *newnode = makeNode(FuncExpr);

	COPY_SCALAR_FIELD(funcid);
	COPY_SCALAR_FIELD(funcresulttype);
	COPY_SCALAR_FIELD(funcretset);
	COPY_SCALAR_FIELD(funcformat);
	COPY_NODE_FIELD(args);

	return newnode;
}

/*
 * _copyOpExpr
 */
static OpExpr *
_copyOpExpr(OpExpr *from)
{
	OpExpr	   *newnode = makeNode(OpExpr);

	COPY_SCALAR_FIELD(opno);
	COPY_SCALAR_FIELD(opfuncid);
	COPY_SCALAR_FIELD(opresulttype);
	COPY_SCALAR_FIELD(opretset);
	COPY_NODE_FIELD(args);

	return newnode;
}

/*
 * _copyDistinctExpr (same as OpExpr)
 */
static DistinctExpr *
_copyDistinctExpr(DistinctExpr *from)
{
	DistinctExpr *newnode = makeNode(DistinctExpr);

	COPY_SCALAR_FIELD(opno);
	COPY_SCALAR_FIELD(opfuncid);
	COPY_SCALAR_FIELD(opresulttype);
	COPY_SCALAR_FIELD(opretset);
	COPY_NODE_FIELD(args);

	return newnode;
}

/*
 * _copyScalarArrayOpExpr
 */
static ScalarArrayOpExpr *
_copyScalarArrayOpExpr(ScalarArrayOpExpr *from)
{
	ScalarArrayOpExpr *newnode = makeNode(ScalarArrayOpExpr);

	COPY_SCALAR_FIELD(opno);
	COPY_SCALAR_FIELD(opfuncid);
	COPY_SCALAR_FIELD(useOr);
	COPY_NODE_FIELD(args);

	return newnode;
}

/*
 * _copyBoolExpr
 */
static BoolExpr *
_copyBoolExpr(BoolExpr *from)
{
	BoolExpr   *newnode = makeNode(BoolExpr);

	COPY_SCALAR_FIELD(boolop);
	COPY_NODE_FIELD(args);

	return newnode;
}

/*
 * _copySubLink
 */
static SubLink *
_copySubLink(SubLink *from)
{
	SubLink    *newnode = makeNode(SubLink);

	COPY_SCALAR_FIELD(subLinkType);
	COPY_SCALAR_FIELD(useOr);
	COPY_NODE_FIELD(lefthand);
	COPY_NODE_FIELD(operName);
	COPY_OIDLIST_FIELD(operOids);
	COPY_NODE_FIELD(subselect);

	return newnode;
}

/*
 * _copySubPlan
 */
static SubPlan *
_copySubPlan(SubPlan *from)
{
	SubPlan    *newnode = makeNode(SubPlan);

	COPY_SCALAR_FIELD(subLinkType);
	COPY_SCALAR_FIELD(useOr);
	COPY_NODE_FIELD(exprs);
	COPY_INTLIST_FIELD(paramIds);
	COPY_NODE_FIELD(plan);
	COPY_SCALAR_FIELD(plan_id);
	COPY_NODE_FIELD(rtable);
	COPY_SCALAR_FIELD(useHashTable);
	COPY_SCALAR_FIELD(unknownEqFalse);
	COPY_INTLIST_FIELD(setParam);
	COPY_INTLIST_FIELD(parParam);
	COPY_NODE_FIELD(args);

	return newnode;
}

/*
 * _copyFieldSelect
 */
static FieldSelect *
_copyFieldSelect(FieldSelect *from)
{
	FieldSelect *newnode = makeNode(FieldSelect);

	COPY_NODE_FIELD(arg);
	COPY_SCALAR_FIELD(fieldnum);
	COPY_SCALAR_FIELD(resulttype);
	COPY_SCALAR_FIELD(resulttypmod);

	return newnode;
}

/*
 * _copyRelabelType
 */
static RelabelType *
_copyRelabelType(RelabelType *from)
{
	RelabelType *newnode = makeNode(RelabelType);

	COPY_NODE_FIELD(arg);
	COPY_SCALAR_FIELD(resulttype);
	COPY_SCALAR_FIELD(resulttypmod);
	COPY_SCALAR_FIELD(relabelformat);

	return newnode;
}

/*
 * _copyCaseExpr
 */
static CaseExpr *
_copyCaseExpr(CaseExpr *from)
{
	CaseExpr   *newnode = makeNode(CaseExpr);

	COPY_SCALAR_FIELD(casetype);
	COPY_NODE_FIELD(arg);
	COPY_NODE_FIELD(args);
	COPY_NODE_FIELD(defresult);

	return newnode;
}

/*
 * _copyCaseWhen
 */
static CaseWhen *
_copyCaseWhen(CaseWhen *from)
{
	CaseWhen   *newnode = makeNode(CaseWhen);

	COPY_NODE_FIELD(expr);
	COPY_NODE_FIELD(result);

	return newnode;
}

/*
 * _copyArrayExpr
 */
static ArrayExpr *
_copyArrayExpr(ArrayExpr *from)
{
	ArrayExpr  *newnode = makeNode(ArrayExpr);

	COPY_SCALAR_FIELD(array_typeid);
	COPY_SCALAR_FIELD(element_typeid);
	COPY_NODE_FIELD(elements);
	COPY_SCALAR_FIELD(multidims);

	return newnode;
}

/*
 * _copyCoalesceExpr
 */
static CoalesceExpr *
_copyCoalesceExpr(CoalesceExpr *from)
{
	CoalesceExpr *newnode = makeNode(CoalesceExpr);

	COPY_SCALAR_FIELD(coalescetype);
	COPY_NODE_FIELD(args);

	return newnode;
}

/*
 * _copyNullIfExpr (same as OpExpr)
 */
static NullIfExpr *
_copyNullIfExpr(NullIfExpr *from)
{
	NullIfExpr *newnode = makeNode(NullIfExpr);

	COPY_SCALAR_FIELD(opno);
	COPY_SCALAR_FIELD(opfuncid);
	COPY_SCALAR_FIELD(opresulttype);
	COPY_SCALAR_FIELD(opretset);
	COPY_NODE_FIELD(args);

	return newnode;
}

/*
 * _copyNullTest
 */
static NullTest *
_copyNullTest(NullTest *from)
{
	NullTest   *newnode = makeNode(NullTest);

	COPY_NODE_FIELD(arg);
	COPY_SCALAR_FIELD(nulltesttype);

	return newnode;
}

/*
 * _copyBooleanTest
 */
static BooleanTest *
_copyBooleanTest(BooleanTest *from)
{
	BooleanTest *newnode = makeNode(BooleanTest);

	COPY_NODE_FIELD(arg);
	COPY_SCALAR_FIELD(booltesttype);

	return newnode;
}

/*
 * _copyCoerceToDomain
 */
static CoerceToDomain *
_copyCoerceToDomain(CoerceToDomain *from)
{
	CoerceToDomain *newnode = makeNode(CoerceToDomain);

	COPY_NODE_FIELD(arg);
	COPY_SCALAR_FIELD(resulttype);
	COPY_SCALAR_FIELD(resulttypmod);
	COPY_SCALAR_FIELD(coercionformat);

	return newnode;
}

/*
 * _copyCoerceToDomainValue
 */
static CoerceToDomainValue *
_copyCoerceToDomainValue(CoerceToDomainValue *from)
{
	CoerceToDomainValue *newnode = makeNode(CoerceToDomainValue);

	COPY_SCALAR_FIELD(typeId);
	COPY_SCALAR_FIELD(typeMod);

	return newnode;
}

/*
 * _copySetToDefault
 */
static SetToDefault *
_copySetToDefault(SetToDefault *from)
{
	SetToDefault *newnode = makeNode(SetToDefault);

	COPY_SCALAR_FIELD(typeId);
	COPY_SCALAR_FIELD(typeMod);

	return newnode;
}

/*
 * _copyTargetEntry
 */
static TargetEntry *
_copyTargetEntry(TargetEntry *from)
{
	TargetEntry *newnode = makeNode(TargetEntry);

	COPY_NODE_FIELD(resdom);
	COPY_NODE_FIELD(expr);

	return newnode;
}

/*
 * _copyRangeTblRef
 */
static RangeTblRef *
_copyRangeTblRef(RangeTblRef *from)
{
	RangeTblRef *newnode = makeNode(RangeTblRef);

	COPY_SCALAR_FIELD(rtindex);

	return newnode;
}

/*
 * _copyJoinExpr
 */
static JoinExpr *
_copyJoinExpr(JoinExpr *from)
{
	JoinExpr   *newnode = makeNode(JoinExpr);

	COPY_SCALAR_FIELD(jointype);
	COPY_SCALAR_FIELD(isNatural);
	COPY_NODE_FIELD(larg);
	COPY_NODE_FIELD(rarg);
	COPY_NODE_FIELD(using);
	COPY_NODE_FIELD(quals);
	COPY_NODE_FIELD(alias);
	COPY_SCALAR_FIELD(rtindex);

	return newnode;
}

/*
 * _copyFromExpr
 */
static FromExpr *
_copyFromExpr(FromExpr *from)
{
	FromExpr   *newnode = makeNode(FromExpr);

	COPY_NODE_FIELD(fromlist);
	COPY_NODE_FIELD(quals);

	return newnode;
}

/* ****************************************************************
 *						relation.h copy functions
 *
 * We don't support copying RelOptInfo, IndexOptInfo, or Path nodes.
 * There are some subsidiary structs that are useful to copy, though.
 * ****************************************************************
 */

/*
 * _copyPathKeyItem
 */
static PathKeyItem *
_copyPathKeyItem(PathKeyItem *from)
{
	PathKeyItem *newnode = makeNode(PathKeyItem);

	COPY_NODE_FIELD(key);
	COPY_SCALAR_FIELD(sortop);

	return newnode;
}

/*
 * _copyRestrictInfo
 */
static RestrictInfo *
_copyRestrictInfo(RestrictInfo *from)
{
	RestrictInfo *newnode = makeNode(RestrictInfo);

	COPY_NODE_FIELD(clause);
	COPY_SCALAR_FIELD(ispusheddown);
	COPY_NODE_FIELD(subclauseindices);	/* XXX probably bad */
	COPY_SCALAR_FIELD(eval_cost);
	COPY_SCALAR_FIELD(this_selec);
	COPY_BITMAPSET_FIELD(left_relids);
	COPY_BITMAPSET_FIELD(right_relids);
	COPY_SCALAR_FIELD(mergejoinoperator);
	COPY_SCALAR_FIELD(left_sortop);
	COPY_SCALAR_FIELD(right_sortop);

	/*
	 * Do not copy pathkeys, since they'd not be canonical in a copied
	 * query
	 */
	newnode->left_pathkey = NIL;
	newnode->right_pathkey = NIL;

	COPY_SCALAR_FIELD(left_mergescansel);
	COPY_SCALAR_FIELD(right_mergescansel);
	COPY_SCALAR_FIELD(hashjoinoperator);
	COPY_SCALAR_FIELD(left_bucketsize);
	COPY_SCALAR_FIELD(right_bucketsize);

	return newnode;
}

/*
 * _copyJoinInfo
 */
static JoinInfo *
_copyJoinInfo(JoinInfo *from)
{
	JoinInfo   *newnode = makeNode(JoinInfo);

	COPY_BITMAPSET_FIELD(unjoined_relids);
	COPY_NODE_FIELD(jinfo_restrictinfo);

	return newnode;
}

/*
 * _copyInClauseInfo
 */
static InClauseInfo *
_copyInClauseInfo(InClauseInfo *from)
{
	InClauseInfo *newnode = makeNode(InClauseInfo);

	COPY_BITMAPSET_FIELD(lefthand);
	COPY_BITMAPSET_FIELD(righthand);
	COPY_NODE_FIELD(sub_targetlist);

	return newnode;
}

/* ****************************************************************
 *					parsenodes.h copy functions
 * ****************************************************************
 */

static RangeTblEntry *
_copyRangeTblEntry(RangeTblEntry *from)
{
	RangeTblEntry *newnode = makeNode(RangeTblEntry);

	COPY_SCALAR_FIELD(rtekind);
	COPY_SCALAR_FIELD(relid);
	COPY_NODE_FIELD(subquery);
	COPY_NODE_FIELD(funcexpr);
	COPY_NODE_FIELD(coldeflist);
	COPY_SCALAR_FIELD(jointype);
	COPY_NODE_FIELD(joinaliasvars);
	COPY_NODE_FIELD(alias);
	COPY_NODE_FIELD(eref);
	COPY_SCALAR_FIELD(inh);
	COPY_SCALAR_FIELD(inFromCl);
	COPY_SCALAR_FIELD(checkForRead);
	COPY_SCALAR_FIELD(checkForWrite);
	COPY_SCALAR_FIELD(checkAsUser);

	return newnode;
}

static FkConstraint *
_copyFkConstraint(FkConstraint *from)
{
	FkConstraint *newnode = makeNode(FkConstraint);

	COPY_STRING_FIELD(constr_name);
	COPY_NODE_FIELD(pktable);
	COPY_NODE_FIELD(fk_attrs);
	COPY_NODE_FIELD(pk_attrs);
	COPY_SCALAR_FIELD(fk_matchtype);
	COPY_SCALAR_FIELD(fk_upd_action);
	COPY_SCALAR_FIELD(fk_del_action);
	COPY_SCALAR_FIELD(deferrable);
	COPY_SCALAR_FIELD(initdeferred);
	COPY_SCALAR_FIELD(skip_validation);

	return newnode;
}

static SortClause *
_copySortClause(SortClause *from)
{
	SortClause *newnode = makeNode(SortClause);

	COPY_SCALAR_FIELD(tleSortGroupRef);
	COPY_SCALAR_FIELD(sortop);

	return newnode;
}

static GroupClause *
_copyGroupClause(GroupClause *from)
{
	GroupClause *newnode = makeNode(GroupClause);

	COPY_SCALAR_FIELD(tleSortGroupRef);
	COPY_SCALAR_FIELD(sortop);

	return newnode;
}

static A_Expr *
_copyAExpr(A_Expr *from)
{
	A_Expr	   *newnode = makeNode(A_Expr);

	COPY_SCALAR_FIELD(kind);
	COPY_NODE_FIELD(name);
	COPY_NODE_FIELD(lexpr);
	COPY_NODE_FIELD(rexpr);

	return newnode;
}

static ColumnRef *
_copyColumnRef(ColumnRef *from)
{
	ColumnRef  *newnode = makeNode(ColumnRef);

	COPY_NODE_FIELD(fields);
	COPY_NODE_FIELD(indirection);

	return newnode;
}

static ParamRef *
_copyParamRef(ParamRef *from)
{
	ParamRef   *newnode = makeNode(ParamRef);

	COPY_SCALAR_FIELD(number);
	COPY_NODE_FIELD(fields);
	COPY_NODE_FIELD(indirection);

	return newnode;
}

static A_Const *
_copyAConst(A_Const *from)
{
	A_Const    *newnode = makeNode(A_Const);

	/* This part must duplicate _copyValue */
	COPY_SCALAR_FIELD(val.type);
	switch (from->val.type)
	{
		case T_Integer:
			COPY_SCALAR_FIELD(val.val.ival);
			break;
		case T_Float:
		case T_String:
		case T_BitString:
			COPY_STRING_FIELD(val.val.str);
			break;
		case T_Null:
			/* nothing to do */
			break;
		default:
			elog(ERROR, "unrecognized node type: %d",
				 (int) from->val.type);
			break;
	}

	COPY_NODE_FIELD(typename);

	return newnode;
}

static FuncCall *
_copyFuncCall(FuncCall *from)
{
	FuncCall   *newnode = makeNode(FuncCall);

	COPY_NODE_FIELD(funcname);
	COPY_NODE_FIELD(args);
	COPY_SCALAR_FIELD(agg_star);
	COPY_SCALAR_FIELD(agg_distinct);

	return newnode;
}

static A_Indices *
_copyAIndices(A_Indices *from)
{
	A_Indices  *newnode = makeNode(A_Indices);

	COPY_NODE_FIELD(lidx);
	COPY_NODE_FIELD(uidx);

	return newnode;
}

static ExprFieldSelect *
_copyExprFieldSelect(ExprFieldSelect *from)
{
	ExprFieldSelect *newnode = makeNode(ExprFieldSelect);

	COPY_NODE_FIELD(arg);
	COPY_NODE_FIELD(fields);
	COPY_NODE_FIELD(indirection);

	return newnode;
}

static ResTarget *
_copyResTarget(ResTarget *from)
{
	ResTarget  *newnode = makeNode(ResTarget);

	COPY_STRING_FIELD(name);
	COPY_NODE_FIELD(indirection);
	COPY_NODE_FIELD(val);

	return newnode;
}

static TypeName *
_copyTypeName(TypeName *from)
{
	TypeName   *newnode = makeNode(TypeName);

	COPY_NODE_FIELD(names);
	COPY_SCALAR_FIELD(typeid);
	COPY_SCALAR_FIELD(timezone);
	COPY_SCALAR_FIELD(setof);
	COPY_SCALAR_FIELD(pct_type);
	COPY_SCALAR_FIELD(typmod);
	COPY_NODE_FIELD(arrayBounds);

	return newnode;
}

static SortBy *
_copySortBy(SortBy *from)
{
	SortBy *newnode = makeNode(SortBy);

	COPY_SCALAR_FIELD(sortby_kind);
	COPY_NODE_FIELD(useOp);
	COPY_NODE_FIELD(node);

	return newnode;
}

static RangeSubselect *
_copyRangeSubselect(RangeSubselect *from)
{
	RangeSubselect *newnode = makeNode(RangeSubselect);

	COPY_NODE_FIELD(subquery);
	COPY_NODE_FIELD(alias);

	return newnode;
}

static RangeFunction *
_copyRangeFunction(RangeFunction *from)
{
	RangeFunction *newnode = makeNode(RangeFunction);

	COPY_NODE_FIELD(funccallnode);
	COPY_NODE_FIELD(alias);
	COPY_NODE_FIELD(coldeflist);

	return newnode;
}

static TypeCast *
_copyTypeCast(TypeCast *from)
{
	TypeCast   *newnode = makeNode(TypeCast);

	COPY_NODE_FIELD(arg);
	COPY_NODE_FIELD(typename);

	return newnode;
}

static IndexElem *
_copyIndexElem(IndexElem *from)
{
	IndexElem  *newnode = makeNode(IndexElem);

	COPY_STRING_FIELD(name);
	COPY_NODE_FIELD(expr);
	COPY_NODE_FIELD(opclass);

	return newnode;
}

static ColumnDef *
_copyColumnDef(ColumnDef *from)
{
	ColumnDef  *newnode = makeNode(ColumnDef);

	COPY_STRING_FIELD(colname);
	COPY_NODE_FIELD(typename);
	COPY_SCALAR_FIELD(inhcount);
	COPY_SCALAR_FIELD(is_local);
	COPY_SCALAR_FIELD(is_not_null);
	COPY_NODE_FIELD(raw_default);
	COPY_STRING_FIELD(cooked_default);
	COPY_NODE_FIELD(constraints);
	COPY_NODE_FIELD(support);

	return newnode;
}

static Constraint *
_copyConstraint(Constraint *from)
{
	Constraint *newnode = makeNode(Constraint);

	COPY_SCALAR_FIELD(contype);
	COPY_STRING_FIELD(name);
	COPY_NODE_FIELD(raw_expr);
	COPY_STRING_FIELD(cooked_expr);
	COPY_NODE_FIELD(keys);