copyfuncs.c

PostgreSQL 8.1.4的源码 适用于Linux下的开源数据库系统

}

/* ****************************************************************
 *					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(requiredPerms);
	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);

	return newnode;
}

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

	COPY_SCALAR_FIELD(number);

	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 A_Indirection *
_copyA_Indirection(A_Indirection *from)
{
	A_Indirection *newnode = makeNode(A_Indirection);

	COPY_NODE_FIELD(arg);
	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);
	COPY_STRING_FIELD(indexspace);

	return newnode;
}

static DefElem *
_copyDefElem(DefElem *from)
{
	DefElem    *newnode = makeNode(DefElem);

	COPY_STRING_FIELD(defname);
	COPY_NODE_FIELD(arg);

	return newnode;
}

static LockingClause *
_copyLockingClause(LockingClause *from)
{
	LockingClause *newnode = makeNode(LockingClause);

	COPY_NODE_FIELD(lockedRels);
	COPY_SCALAR_FIELD(forUpdate);
	COPY_SCALAR_FIELD(nowait);

	return newnode;
}

static Query *
_copyQuery(Query *from)
{
	Query	   *newnode = makeNode(Query);

	COPY_SCALAR_FIELD(commandType);
	COPY_SCALAR_FIELD(querySource);
	COPY_SCALAR_FIELD(canSetTag);
	COPY_NODE_FIELD(utilityStmt);
	COPY_SCALAR_FIELD(resultRelation);
	COPY_NODE_FIELD(into);
	COPY_SCALAR_FIELD(intoHasOids);
	COPY_SCALAR_FIELD(hasAggs);
	COPY_SCALAR_FIELD(hasSubLinks);
	COPY_NODE_FIELD(rtable);
	COPY_NODE_FIELD(jointree);
	COPY_NODE_FIELD(rowMarks);
	COPY_SCALAR_FIELD(forUpdate);
	COPY_SCALAR_FIELD(rowNoWait);
	COPY_NODE_FIELD(targetList);
	COPY_NODE_FIELD(groupClause);
	COPY_NODE_FIELD(havingQual);
	COPY_NODE_FIELD(distinctClause);
	COPY_NODE_FIELD(sortClause);
	COPY_NODE_FIELD(limitOffset);
	COPY_NODE_FIELD(limitCount);
	COPY_NODE_FIELD(setOperations);
	COPY_NODE_FIELD(resultRelations);

	return newnode;
}

static InsertStmt *
_copyInsertStmt(InsertStmt *from)
{
	InsertStmt *newnode = makeNode(InsertStmt);

	COPY_NODE_FIELD(relation);
	COPY_NODE_FIELD(cols);
	COPY_NODE_FIELD(targetList);
	COPY_NODE_FIELD(selectStmt);

	return newnode;
}

static DeleteStmt *
_copyDeleteStmt(DeleteStmt *from)
{
	DeleteStmt *newnode = makeNode(DeleteStmt);

	COPY_NODE_FIELD(relation);
	COPY_NODE_FIELD(whereClause);
	COPY_NODE_FIELD(usingClause);

	return newnode;
}

static UpdateStmt *
_copyUpdateStmt(UpdateStmt *from)
{
	UpdateStmt *newnode = makeNode(UpdateStmt);

	COPY_NODE_FIELD(relation);
	COPY_NODE_FIELD(targetList);
	COPY_NODE_FIELD(whereClause);
	COPY_NODE_FIELD(fromClause);

	return newnode;
}

static SelectStmt *
_copySelectStmt(SelectStmt *from)
{
	SelectStmt *newnode = makeNode(SelectStmt);

	COPY_NODE_FIELD(distinctClause);
	COPY_NODE_FIELD(into);
	COPY_NODE_FIELD(intoColNames);
	COPY_SCALAR_FIELD(intoHasOids);
	COPY_NODE_FIELD(targetList);
	COPY_NODE_FIELD(fromClause);
	COPY_NODE_FIELD(whereClause);
	COPY_NODE_FIELD(groupClause);
	COPY_NODE_FIELD(havingClause);
	COPY_NODE_FIELD(sortClause);
	COPY_NODE_FIELD(limitOffset);
	COPY_NODE_FIELD(limitCount);
	COPY_NODE_FIELD(lockingClause);
	COPY_SCALAR_FIELD(op);
	COPY_SCALAR_FIELD(all);
	COPY_NODE_FIELD(larg);
	COPY_NODE_FIELD(rarg);

	return newnode;
}

static SetOperationStmt *
_copySetOperationStmt(SetOperationStmt *from)
{
	SetOperationStmt *newnode = makeNode(SetOperationStmt);

	COPY_SCALAR_FIELD(op);
	COPY_SCALAR_FIELD(all);
	COPY_NODE_FIELD(larg);
	COPY_NODE_FIELD(rarg);
	COPY_NODE_FIELD(colTypes);

	return newnode;
}

static AlterTableStmt *
_copyAlterTableStmt(AlterTableStmt *from)
{
	AlterTableStmt *newnode = makeNode(AlterTableStmt);

	COPY_NODE_FIELD(relation);
	COPY_NODE_FIELD(cmds);
	COPY_SCALAR_FIELD(relkind);

	return newnode;
}

static AlterTableCmd *
_copyAlterTableCmd(AlterTableCmd *from)
{
	AlterTableCmd *newnode = makeNode(AlterTableCmd);

	COPY_SCALAR_FIELD(subtype);
	COPY_STRING_FIELD(name);
	COPY_NODE_FIELD(def);
	COPY_NODE_FIELD(transform);
	COPY_SCALAR_FIELD(behavior);

	return newnode;
}

static AlterDomainStmt *
_copyAlterDomainStmt(AlterDomainStmt *from)
{
	AlterDomainStmt *newnode = makeNode(AlterDomainStmt);

	COPY_SCALAR_FIELD(subtype);
	COPY_NODE_FIELD(typename);
	COPY_STRING_FIELD(name);
	COPY_NODE_FIELD(def);
	COPY_SCALAR_FIELD(behavior);

	return newnode;
}

static GrantStmt *
_copyGrantStmt(GrantStmt *from)
{
	GrantStmt  *newnode = makeNode(GrantStmt);

	COPY_SCALAR_FIELD(is_grant);
	COPY_SCALAR_FIELD(objtype);
	COPY_NODE_FIELD(objects);
	COPY_NODE_FIELD(privileges);
	COPY_NODE_FIELD(grantees);
	COPY_SCALAR_FIELD(grant_option);
	COPY_SCALAR_FIELD(behavior);

	return newnode;
}

static PrivGrantee *
_copyPrivGrantee(PrivGrantee *from)
{
	PrivGrantee *newnode = makeNode(PrivGrantee);

	COPY_STRING_FIELD(rolname);

	return newnode;
}

static FuncWithArgs *
_copyFuncWithArgs(FuncWithArgs *from)
{
	FuncWithArgs *newnode = makeNode(FuncWithArgs);

	COPY_NODE_FIELD(funcname);
	COPY_NODE_FIELD(funcargs);

	return newnode;
}

static GrantRoleStmt *
_copyGrantRoleStmt(GrantRoleStmt *from)
{
	GrantRoleStmt *newnode = makeNode(GrantRoleStmt);

	COPY_NODE_FIELD(granted_roles);
	COPY_NODE_FIELD(grantee_roles);
	COPY_SCALAR_FIELD(is_grant);
	COPY_SCALAR_FIELD(admin_opt);
	COPY_STRING_FIELD(grantor);
	COPY_SCALAR_FIELD(behavior);

	return newnode;
}

static DeclareCursorStmt *
_copyDeclareCursorStmt(DeclareCursorStmt *from)
{
	DeclareCursorStmt *newnode = makeNode(DeclareCursorStmt);

	COPY_STRING_FIELD(portalname);
	COPY_SCALAR_FIELD(options);
	COPY_NODE_FIELD(query);

	return newnode;
}

static ClosePortalStmt *
_copyClosePortalStmt(ClosePortalStmt *from)
{
	ClosePortalStmt *newnode = makeNode(ClosePortalStmt);

	COPY_STRING_FIELD(portalname);

	return newnode;
}

static ClusterStmt *
_copyClusterStmt(ClusterStmt *from)
{
	ClusterStmt *newnode = makeNode(ClusterStmt);

	COPY_NODE_FIELD(relation);
	COPY_STRING_FIELD(indexname);

	return newnode;
}

static CopyStmt *
_copyCopyStmt(CopyStmt *from)
{
	CopyStmt   *newnode = makeNode(CopyStmt);

	COPY_NODE_FIELD(relation);
	COPY_NODE_FIELD(attlist);
	COPY_SCALAR_FIELD(is_from);
	COPY_STRING_FIELD(filename);
	COPY_NODE_FIELD(options);

	return newnode;
}

static CreateStmt *
_copyCreateStmt(CreateStmt *from)
{
	CreateStmt *newnode = makeNode(CreateStmt);

	COPY_NODE_FIELD(relation);
	COPY_NODE_FIELD(tableElts);
	COPY_NODE_FIELD(inhRelations);
	COPY_NODE_FIELD(constraints);
	COPY_SCALAR_FIELD(hasoids);
	COPY_SCALAR_FIELD(oncommit);
	COPY_STRING_FIELD(tablespacename);

	return newnode;
}

static InhRelation *
_copyInhRelation(InhRelation *from)
{
	InhRelation *newnode = makeNode(InhRelation);

	COPY_NODE_FIELD(relation);
	COPY_SCALAR_FIELD(including_defaults);

	return newnode;
}

static DefineStmt *
_copyDefineStmt(DefineStmt *from)
{
	DefineStmt *newnode = makeNode(DefineStmt);

	COPY_SCALAR_FIELD(kind);
	COPY_NODE_FIELD(defnames);
	COPY_NODE_FIELD(definition);

	return newnode;
}

static DropStmt *
_copyDropStmt(DropStmt *from)
{
	DropStmt   *newnode = makeNode(DropStmt);

	COPY_NODE_FIELD(objects);
	COPY_SCALAR_FIELD(removeType);
	COPY_SCALAR_FIELD(behavior);

	return newnode;
}

static TruncateStmt *
_copyTruncateStmt(TruncateStmt *from)
{
	TruncateStmt *newnode = makeNode(TruncateStmt);

	COPY_NODE_FIELD(relations);

	return newnode;
}

static CommentStmt *
_copyCommentStmt(CommentStmt *from)
{
	CommentStmt *newnode = makeNode(CommentStmt);

	COPY_SCALAR_FIELD(objtype);
	COPY_NODE_FIELD(objname);
	COPY_NODE_FIELD(objargs);
	COPY_STRING_FIELD(comment);

	return newnode;
}

static FetchStmt *
_copyFetchStmt(FetchStmt *from)
{
	FetchStmt  *newnode = makeNode(FetchStmt);

	COPY_SCALAR_FIELD(direction);
	COPY_SCALAR_FIELD(howMany);
	COPY_STRING_FIELD(portalname);
	COPY_SCALAR_FIELD(ismove);

	return newnode;
}