outfuncs.c

PostgreSQL 8.1.4的源码 适用于Linux下的开源数据库系统

	WRITE_NODE_TYPE("BOOLEXPR");

	/* do-it-yourself enum representation */
	switch (node->boolop)
	{
		case AND_EXPR:
			opstr = "and";
			break;
		case OR_EXPR:
			opstr = "or";
			break;
		case NOT_EXPR:
			opstr = "not";
			break;
	}
	appendStringInfo(str, " :boolop ");
	_outToken(str, opstr);

	WRITE_NODE_FIELD(args);
}

static void
_outSubLink(StringInfo str, SubLink *node)
{
	WRITE_NODE_TYPE("SUBLINK");

	WRITE_ENUM_FIELD(subLinkType, SubLinkType);
	WRITE_BOOL_FIELD(useOr);
	WRITE_NODE_FIELD(lefthand);
	WRITE_NODE_FIELD(operName);
	WRITE_NODE_FIELD(operOids);
	WRITE_NODE_FIELD(subselect);
}

static void
_outSubPlan(StringInfo str, SubPlan *node)
{
	WRITE_NODE_TYPE("SUBPLAN");

	WRITE_ENUM_FIELD(subLinkType, SubLinkType);
	WRITE_BOOL_FIELD(useOr);
	WRITE_NODE_FIELD(exprs);
	WRITE_NODE_FIELD(paramIds);
	WRITE_NODE_FIELD(plan);
	WRITE_INT_FIELD(plan_id);
	WRITE_NODE_FIELD(rtable);
	WRITE_BOOL_FIELD(useHashTable);
	WRITE_BOOL_FIELD(unknownEqFalse);
	WRITE_NODE_FIELD(setParam);
	WRITE_NODE_FIELD(parParam);
	WRITE_NODE_FIELD(args);
}

static void
_outFieldSelect(StringInfo str, FieldSelect *node)
{
	WRITE_NODE_TYPE("FIELDSELECT");

	WRITE_NODE_FIELD(arg);
	WRITE_INT_FIELD(fieldnum);
	WRITE_OID_FIELD(resulttype);
	WRITE_INT_FIELD(resulttypmod);
}

static void
_outFieldStore(StringInfo str, FieldStore *node)
{
	WRITE_NODE_TYPE("FIELDSTORE");

	WRITE_NODE_FIELD(arg);
	WRITE_NODE_FIELD(newvals);
	WRITE_NODE_FIELD(fieldnums);
	WRITE_OID_FIELD(resulttype);
}

static void
_outRelabelType(StringInfo str, RelabelType *node)
{
	WRITE_NODE_TYPE("RELABELTYPE");

	WRITE_NODE_FIELD(arg);
	WRITE_OID_FIELD(resulttype);
	WRITE_INT_FIELD(resulttypmod);
	WRITE_ENUM_FIELD(relabelformat, CoercionForm);
}

static void
_outConvertRowtypeExpr(StringInfo str, ConvertRowtypeExpr *node)
{
	WRITE_NODE_TYPE("CONVERTROWTYPEEXPR");

	WRITE_NODE_FIELD(arg);
	WRITE_OID_FIELD(resulttype);
	WRITE_ENUM_FIELD(convertformat, CoercionForm);
}

static void
_outCaseExpr(StringInfo str, CaseExpr *node)
{
	WRITE_NODE_TYPE("CASE");

	WRITE_OID_FIELD(casetype);
	WRITE_NODE_FIELD(arg);
	WRITE_NODE_FIELD(args);
	WRITE_NODE_FIELD(defresult);
}

static void
_outCaseWhen(StringInfo str, CaseWhen *node)
{
	WRITE_NODE_TYPE("WHEN");

	WRITE_NODE_FIELD(expr);
	WRITE_NODE_FIELD(result);
}

static void
_outCaseTestExpr(StringInfo str, CaseTestExpr *node)
{
	WRITE_NODE_TYPE("CASETESTEXPR");

	WRITE_OID_FIELD(typeId);
	WRITE_INT_FIELD(typeMod);
}

static void
_outArrayExpr(StringInfo str, ArrayExpr *node)
{
	WRITE_NODE_TYPE("ARRAY");

	WRITE_OID_FIELD(array_typeid);
	WRITE_OID_FIELD(element_typeid);
	WRITE_NODE_FIELD(elements);
	WRITE_BOOL_FIELD(multidims);
}

static void
_outRowExpr(StringInfo str, RowExpr *node)
{
	WRITE_NODE_TYPE("ROW");

	WRITE_NODE_FIELD(args);
	WRITE_OID_FIELD(row_typeid);
	WRITE_ENUM_FIELD(row_format, CoercionForm);
}

static void
_outCoalesceExpr(StringInfo str, CoalesceExpr *node)
{
	WRITE_NODE_TYPE("COALESCE");

	WRITE_OID_FIELD(coalescetype);
	WRITE_NODE_FIELD(args);
}

static void
_outMinMaxExpr(StringInfo str, MinMaxExpr *node)
{
	WRITE_NODE_TYPE("MINMAX");

	WRITE_OID_FIELD(minmaxtype);
	WRITE_ENUM_FIELD(op, MinMaxOp);
	WRITE_NODE_FIELD(args);
}

static void
_outNullIfExpr(StringInfo str, NullIfExpr *node)
{
	WRITE_NODE_TYPE("NULLIFEXPR");

	WRITE_OID_FIELD(opno);
	WRITE_OID_FIELD(opfuncid);
	WRITE_OID_FIELD(opresulttype);
	WRITE_BOOL_FIELD(opretset);
	WRITE_NODE_FIELD(args);
}

static void
_outNullTest(StringInfo str, NullTest *node)
{
	WRITE_NODE_TYPE("NULLTEST");

	WRITE_NODE_FIELD(arg);
	WRITE_ENUM_FIELD(nulltesttype, NullTestType);
}

static void
_outBooleanTest(StringInfo str, BooleanTest *node)
{
	WRITE_NODE_TYPE("BOOLEANTEST");

	WRITE_NODE_FIELD(arg);
	WRITE_ENUM_FIELD(booltesttype, BoolTestType);
}

static void
_outCoerceToDomain(StringInfo str, CoerceToDomain *node)
{
	WRITE_NODE_TYPE("COERCETODOMAIN");

	WRITE_NODE_FIELD(arg);
	WRITE_OID_FIELD(resulttype);
	WRITE_INT_FIELD(resulttypmod);
	WRITE_ENUM_FIELD(coercionformat, CoercionForm);
}

static void
_outCoerceToDomainValue(StringInfo str, CoerceToDomainValue *node)
{
	WRITE_NODE_TYPE("COERCETODOMAINVALUE");

	WRITE_OID_FIELD(typeId);
	WRITE_INT_FIELD(typeMod);
}

static void
_outSetToDefault(StringInfo str, SetToDefault *node)
{
	WRITE_NODE_TYPE("SETTODEFAULT");

	WRITE_OID_FIELD(typeId);
	WRITE_INT_FIELD(typeMod);
}

static void
_outTargetEntry(StringInfo str, TargetEntry *node)
{
	WRITE_NODE_TYPE("TARGETENTRY");

	WRITE_NODE_FIELD(expr);
	WRITE_INT_FIELD(resno);
	WRITE_STRING_FIELD(resname);
	WRITE_UINT_FIELD(ressortgroupref);
	WRITE_OID_FIELD(resorigtbl);
	WRITE_INT_FIELD(resorigcol);
	WRITE_BOOL_FIELD(resjunk);
}

static void
_outRangeTblRef(StringInfo str, RangeTblRef *node)
{
	WRITE_NODE_TYPE("RANGETBLREF");

	WRITE_INT_FIELD(rtindex);
}

static void
_outJoinExpr(StringInfo str, JoinExpr *node)
{
	WRITE_NODE_TYPE("JOINEXPR");

	WRITE_ENUM_FIELD(jointype, JoinType);
	WRITE_BOOL_FIELD(isNatural);
	WRITE_NODE_FIELD(larg);
	WRITE_NODE_FIELD(rarg);
	WRITE_NODE_FIELD(using);
	WRITE_NODE_FIELD(quals);
	WRITE_NODE_FIELD(alias);
	WRITE_INT_FIELD(rtindex);
}

static void
_outFromExpr(StringInfo str, FromExpr *node)
{
	WRITE_NODE_TYPE("FROMEXPR");

	WRITE_NODE_FIELD(fromlist);
	WRITE_NODE_FIELD(quals);
}

/*****************************************************************************
 *
 *	Stuff from relation.h.
 *
 *****************************************************************************/

/*
 * print the basic stuff of all nodes that inherit from Path
 *
 * Note we do NOT print the parent, else we'd be in infinite recursion
 */
static void
_outPathInfo(StringInfo str, Path *node)
{
	WRITE_ENUM_FIELD(pathtype, NodeTag);
	WRITE_FLOAT_FIELD(startup_cost, "%.2f");
	WRITE_FLOAT_FIELD(total_cost, "%.2f");
	WRITE_NODE_FIELD(pathkeys);
}

/*
 * print the basic stuff of all nodes that inherit from JoinPath
 */
static void
_outJoinPathInfo(StringInfo str, JoinPath *node)
{
	_outPathInfo(str, (Path *) node);

	WRITE_ENUM_FIELD(jointype, JoinType);
	WRITE_NODE_FIELD(outerjoinpath);
	WRITE_NODE_FIELD(innerjoinpath);
	WRITE_NODE_FIELD(joinrestrictinfo);
}

static void
_outPath(StringInfo str, Path *node)
{
	WRITE_NODE_TYPE("PATH");

	_outPathInfo(str, (Path *) node);
}

static void
_outIndexPath(StringInfo str, IndexPath *node)
{
	WRITE_NODE_TYPE("INDEXPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(indexinfo);
	WRITE_NODE_FIELD(indexclauses);
	WRITE_NODE_FIELD(indexquals);
	WRITE_BOOL_FIELD(isjoininner);
	WRITE_ENUM_FIELD(indexscandir, ScanDirection);
	WRITE_FLOAT_FIELD(indextotalcost, "%.2f");
	WRITE_FLOAT_FIELD(indexselectivity, "%.4f");
	WRITE_FLOAT_FIELD(rows, "%.0f");
}

static void
_outBitmapHeapPath(StringInfo str, BitmapHeapPath *node)
{
	WRITE_NODE_TYPE("BITMAPHEAPPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(bitmapqual);
	WRITE_BOOL_FIELD(isjoininner);
	WRITE_FLOAT_FIELD(rows, "%.0f");
}

static void
_outBitmapAndPath(StringInfo str, BitmapAndPath *node)
{
	WRITE_NODE_TYPE("BITMAPANDPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(bitmapquals);
	WRITE_FLOAT_FIELD(bitmapselectivity, "%.4f");
}

static void
_outBitmapOrPath(StringInfo str, BitmapOrPath *node)
{
	WRITE_NODE_TYPE("BITMAPORPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(bitmapquals);
	WRITE_FLOAT_FIELD(bitmapselectivity, "%.4f");
}

static void
_outTidPath(StringInfo str, TidPath *node)
{
	WRITE_NODE_TYPE("TIDPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(tideval);
}

static void
_outAppendPath(StringInfo str, AppendPath *node)
{
	WRITE_NODE_TYPE("APPENDPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(subpaths);
}

static void
_outResultPath(StringInfo str, ResultPath *node)
{
	WRITE_NODE_TYPE("RESULTPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(subpath);
	WRITE_NODE_FIELD(constantqual);
}

static void
_outMaterialPath(StringInfo str, MaterialPath *node)
{
	WRITE_NODE_TYPE("MATERIALPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(subpath);
}

static void
_outUniquePath(StringInfo str, UniquePath *node)
{
	WRITE_NODE_TYPE("UNIQUEPATH");

	_outPathInfo(str, (Path *) node);

	WRITE_NODE_FIELD(subpath);
	WRITE_ENUM_FIELD(umethod, UniquePathMethod);
	WRITE_FLOAT_FIELD(rows, "%.0f");
}

static void
_outNestPath(StringInfo str, NestPath *node)
{
	WRITE_NODE_TYPE("NESTPATH");

	_outJoinPathInfo(str, (JoinPath *) node);
}

static void
_outMergePath(StringInfo str, MergePath *node)
{
	WRITE_NODE_TYPE("MERGEPATH");

	_outJoinPathInfo(str, (JoinPath *) node);

	WRITE_NODE_FIELD(path_mergeclauses);
	WRITE_NODE_FIELD(outersortkeys);
	WRITE_NODE_FIELD(innersortkeys);
}

static void
_outHashPath(StringInfo str, HashPath *node)
{
	WRITE_NODE_TYPE("HASHPATH");

	_outJoinPathInfo(str, (JoinPath *) node);

	WRITE_NODE_FIELD(path_hashclauses);
}

static void
_outPlannerInfo(StringInfo str, PlannerInfo *node)
{
	WRITE_NODE_TYPE("PLANNERINFO");

	/* NB: this isn't a complete set of fields */
	WRITE_NODE_FIELD(parse);
	WRITE_NODE_FIELD(join_rel_list);
	WRITE_NODE_FIELD(equi_key_list);
	WRITE_NODE_FIELD(left_join_clauses);
	WRITE_NODE_FIELD(right_join_clauses);
	WRITE_NODE_FIELD(full_join_clauses);
	WRITE_NODE_FIELD(in_info_list);
	WRITE_NODE_FIELD(query_pathkeys);
	WRITE_NODE_FIELD(group_pathkeys);
	WRITE_NODE_FIELD(sort_pathkeys);
	WRITE_FLOAT_FIELD(tuple_fraction, "%.4f");
	WRITE_BOOL_FIELD(hasJoinRTEs);
	WRITE_BOOL_FIELD(hasOuterJoins);
	WRITE_BOOL_FIELD(hasHavingQual);
}

static void
_outRelOptInfo(StringInfo str, RelOptInfo *node)
{
	WRITE_NODE_TYPE("RELOPTINFO");

	/* NB: this isn't a complete set of fields */
	WRITE_ENUM_FIELD(reloptkind, RelOptKind);
	WRITE_BITMAPSET_FIELD(relids);
	WRITE_FLOAT_FIELD(rows, "%.0f");
	WRITE_INT_FIELD(width);
	WRITE_NODE_FIELD(reltargetlist);
	WRITE_NODE_FIELD(pathlist);
	WRITE_NODE_FIELD(cheapest_startup_path);
	WRITE_NODE_FIELD(cheapest_total_path);
	WRITE_NODE_FIELD(cheapest_unique_path);
	WRITE_UINT_FIELD(relid);
	WRITE_ENUM_FIELD(rtekind, RTEKind);
	WRITE_UINT_FIELD(min_attr);
	WRITE_UINT_FIELD(max_attr);
	WRITE_NODE_FIELD(indexlist);
	WRITE_UINT_FIELD(pages);
	WRITE_FLOAT_FIELD(tuples, "%.0f");
	WRITE_NODE_FIELD(subplan);
	WRITE_NODE_FIELD(baserestrictinfo);
	WRITE_BITMAPSET_FIELD(outerjoinset);
	WRITE_NODE_FIELD(joininfo);
	WRITE_BITMAPSET_FIELD(index_outer_relids);
	WRITE_NODE_FIELD(index_inner_paths);
}

static void
_outIndexOptInfo(StringInfo str, IndexOptInfo *node)
{
	WRITE_NODE_TYPE("INDEXOPTINFO");

	/* NB: this isn't a complete set of fields */
	WRITE_OID_FIELD(indexoid);
	/* Do NOT print rel field, else infinite recursion */
	WRITE_UINT_FIELD(pages);
	WRITE_FLOAT_FIELD(tuples, "%.0f");
	WRITE_INT_FIELD(ncolumns);
	WRITE_NODE_FIELD(indexprs);
	WRITE_NODE_FIELD(indpred);
	WRITE_BOOL_FIELD(predOK);
	WRITE_BOOL_FIELD(unique);
}

static void
_outPathKeyItem(StringInfo str, PathKeyItem *node)
{
	WRITE_NODE_TYPE("PATHKEYITEM");

	WRITE_NODE_FIELD(key);
	WRITE_OID_FIELD(sortop);
}

static void
_outRestrictInfo(StringInfo str, RestrictInfo *node)
{
	WRITE_NODE_TYPE("RESTRICTINFO");

	/* NB: this isn't a complete set of fields */
	WRITE_NODE_FIELD(clause);
	WRITE_BOOL_FIELD(is_pushed_down);
	WRITE_BOOL_FIELD(outerjoin_delayed);
	WRITE_BOOL_FIELD(can_join);
	WRITE_BITMAPSET_FIELD(clause_relids);
	WRITE_BITMAPSET_FIELD(required_relids);
	WRITE_BITMAPSET_FIELD(left_relids);
	WRITE_BITMAPSET_FIELD(right_relids);
	WRITE_NODE_FIELD(orclause);
	WRITE_OID_FIELD(mergejoinoperator);
	WRITE_OID_FIELD(left_sortop);
	WRITE_OID_FIELD(right_sortop);
	WRITE_NODE_FIELD(left_pathkey);
	WRITE_NODE_FIELD(right_pathkey);
	WRITE_OID_FIELD(hashjoinoperator);
}

static void
_outInnerIndexscanInfo(StringInfo str, InnerIndexscanInfo *node)
{
	WRITE_NODE_TYPE("INNERINDEXSCANINFO");
	WRITE_BITMAPSET_FIELD(other_relids);
	WRITE_BOOL_FIELD(isouterjoin);
	WRITE_NODE_FIELD(best_innerpath);
}

static void
_outInClauseInfo(StringInfo str, InClauseInfo *node)
{
	WRITE_NODE_TYPE("INCLAUSEINFO");

	WRITE_BITMAPSET_FIELD(lefthand);
	WRITE_BITMAPSET_FIELD(righthand);
	WRITE_NODE_FIELD(sub_targetlist);
}

/*****************************************************************************
 *
 *	Stuff from parsenodes.h.
 *
 *****************************************************************************/

static void
_outCreateStmt(StringInfo str, CreateStmt *node)
{
	WRITE_NODE_TYPE("CREATESTMT");

	WRITE_NODE_FIELD(relation);
	WRITE_NODE_FIELD(tableElts);
	WRITE_NODE_FIELD(inhRelations);
	WRITE_NODE_FIELD(constraints);
	WRITE_ENUM_FIELD(hasoids, ContainsOids);
	WRITE_ENUM_FIELD(oncommit, OnCommitAction);
	WRITE_STRING_FIELD(tablespacename);
}

static void
_outIndexStmt(StringInfo str, IndexStmt *node)
{
	WRITE_NODE_TYPE("INDEXSTMT");

	WRITE_STRING_FIELD(idxname);
	WRITE_NODE_FIELD(relation);
	WRITE_STRING_FIELD(accessMethod);
	WRITE_STRING_FIELD(tableSpace);
	WRITE_NODE_FIELD(indexParams);
	WRITE_NODE_FIELD(whereClause);
	WRITE_NODE_FIELD(rangetable);
	WRITE_BOOL_FIELD(unique);
	WRITE_BOOL_FIELD(primary);
	WRITE_BOOL_FIELD(isconstraint);
}

static void
_outNotifyStmt(StringInfo str, NotifyStmt *node)
{
	WRITE_NODE_TYPE("NOTIFY");

	WRITE_NODE_FIELD(relation);
}

static void
_outDeclareCursorStmt(StringInfo str, DeclareCursorStmt *node)
{
	WRITE_NODE_TYPE("DECLARECURSOR");

	WRITE_STRING_FIELD(portalname);
	WRITE_INT_FIELD(options);
	WRITE_NODE_FIELD(query);
}

static void
_outSelectStmt(StringInfo str, SelectStmt *node)
{
	WRITE_NODE_TYPE("SELECT");

	WRITE_NODE_FIELD(distinctClause);
	WRITE_NODE_FIELD(into);
	WRITE_NODE_FIELD(intoColNames);
	WRITE_ENUM_FIELD(intoHasOids, ContainsOids);
	WRITE_NODE_FIELD(targetList);
	WRITE_NODE_FIELD(fromClause);
	WRITE_NODE_FIELD(whereClause);
	WRITE_NODE_FIELD(groupClause);
	WRITE_NODE_FIELD(havingClause);
	WRITE_NODE_FIELD(sortClause);
	WRITE_NODE_FIELD(limitOffset);
	WRITE_NODE_FIELD(limitCount);
	WRITE_NODE_FIELD(lockingClause);
	WRITE_ENUM_FIELD(op, SetOperation);
	WRITE_BOOL_FIELD(all);
	WRITE_NODE_FIELD(larg);
	WRITE_NODE_FIELD(rarg);
}

static void
_outFuncCall(StringInfo str, FuncCall *node)
{
	WRITE_NODE_TYPE("FUNCCALL");

	WRITE_NODE_FIELD(funcname);
	WRITE_NODE_FIELD(args);
	WRITE_BOOL_FIELD(agg_star);
	WRITE_BOOL_FIELD(agg_distinct);
}

static void
_outDefElem(StringInfo str, DefElem *node)
{
	WRITE_NODE_TYPE("DEFELEM");

	WRITE_STRING_FIELD(defname);
	WRITE_NODE_FIELD(arg);
}

static void
_outLockingClause(StringInfo str, LockingClause *node)
{
	WRITE_NODE_TYPE("LOCKINGCLAUSE");

	WRITE_NODE_FIELD(lockedRels);
	WRITE_BOOL_FIELD(forUpdate);
	WRITE_BOOL_FIELD(nowait);
}

static void
_outColumnDef(StringInfo str, ColumnDef *node)
{
	WRITE_NODE_TYPE("COLUMNDEF");

	WRITE_STRING_FIELD(colname);
	WRITE_NODE_FIELD(typename);
	WRITE_INT_FIELD(inhcount);
	WRITE_BOOL_FIELD(is_local);
	WRITE_BOOL_FIELD(is_not_null);
	WRITE_NODE_FIELD(raw_default);
	WRITE_STRING_FIELD(cooked_default);
	WRITE_NODE_FIELD(constraints);
	WRITE_NODE_FIELD(support);
}

static void
_outTypeName(StringInfo str, TypeName *node)
{
	WRITE_NODE_TYPE("TYPENAME");

	WRITE_NODE_FIELD(names);
	WRITE_OID_FIELD(typeid);
	WRITE_BOOL_FIELD(timezone);
	WRITE_BOOL_FIELD(setof);
	WRITE_BOOL_FIELD(pct_type);
	WRITE_INT_FIELD(typmod);
	WRITE_NODE_FIELD(arrayBounds);
}

static void
_outTypeCast(StringInfo str, TypeCast *node)
{
	WRITE_NODE_TYPE("TYPECAST");