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postgresql/src/backend/nodes/outfuncs.c

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/*-------------------------------------------------------------------------
*
* outfuncs.c--
* routines to convert a node to ascii representation
*
* Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.3 1996/11/10 03:00:44 momjian Exp $
*
* NOTES
* Every (plan) node in POSTGRES has an associated "out" routine which
* knows how to create its ascii representation. These functions are
* useful for debugging as well as for storing plans in the system
* catalogs (eg. indexes). This is also the plan string sent out in
* Mariposa.
*
* These functions update the in/out argument of type StringInfo
* passed to them. This argument contains the string holding the ASCII
* representation plus some other information (string length, etc.)
*
*-------------------------------------------------------------------------
*/
#include <stdio.h>
#include "postgres.h"
#include "access/heapam.h"
#include "access/htup.h"
#include "utils/syscache.h"
#include "utils/lsyscache.h"
#include "fmgr.h"
#include "utils/elog.h"
#include "utils/datum.h"
#include "utils/palloc.h"
#include "nodes/nodes.h"
#include "nodes/execnodes.h"
#include "nodes/pg_list.h"
#include "nodes/plannodes.h"
#include "nodes/parsenodes.h"
#include "nodes/primnodes.h"
#include "nodes/relation.h"
#include "catalog/pg_type.h"
#include "lib/stringinfo.h"
static void _outDatum(StringInfo str, Datum value, Oid type);
static void _outNode(StringInfo str, void *obj);
/*
* _outIntList -
* converts a List of integers
*/
static void
_outIntList(StringInfo str, List *list)
{
List *l;
char buf[500];
appendStringInfo(str, "(");
foreach(l, list) {
sprintf(buf, "%d ", (int)lfirst(l));
appendStringInfo(str, buf);
}
appendStringInfo(str, ")");
}
static void
_outQuery(StringInfo str, Query *node)
{
char buf[500];
sprintf(buf, "QUERY");
appendStringInfo(str,buf);
sprintf(buf, " :command %d", node->commandType);
appendStringInfo(str,buf);
if (node->utilityStmt &&
nodeTag(node->utilityStmt) == T_NotifyStmt)
sprintf(buf," :utility %s",
((NotifyStmt*)(node->utilityStmt))->relname);
else /* use "" to designate */
sprintf(buf," :utility \"\"");
appendStringInfo(str,buf);
sprintf(buf, " :resrel %d", node->resultRelation);
appendStringInfo(str,buf);
sprintf(buf, " :rtable ");
appendStringInfo(str,buf);
_outNode(str, node->rtable);
if (node->uniqueFlag)
sprintf(buf, " :unique %s", node->uniqueFlag);
else /* use "" to designate non-unique */
sprintf(buf, " :unique \"\"");
appendStringInfo(str,buf);
sprintf(buf, " :targetlist ");
appendStringInfo(str,buf);
_outNode(str, node->targetList);
sprintf(buf, " :qual ");
appendStringInfo(str,buf);
_outNode(str, node->qual);
}
/*
* print the basic stuff of all nodes that inherit from Plan
*/
static void
_outPlanInfo(StringInfo str, Plan *node)
{
char buf[500];
sprintf(buf, " :cost %g", node->cost );
appendStringInfo(str,buf);
sprintf(buf, " :size %d", node->plan_size);
appendStringInfo(str,buf);
sprintf(buf, " :width %d", node->plan_width);
appendStringInfo(str,buf);
sprintf(buf, " :state %s", (node->state == (EState*) NULL ?
"nil" : "non-NIL"));
appendStringInfo(str,buf);
sprintf(buf, " :qptargetlist ");
appendStringInfo(str,buf);
_outNode(str, node->targetlist);
sprintf(buf, " :qpqual ");
appendStringInfo(str,buf);
_outNode(str, node->qual);
sprintf(buf, " :lefttree ");
appendStringInfo(str,buf);
_outNode(str, node->lefttree);
sprintf(buf, " :righttree ");
appendStringInfo(str,buf);
_outNode(str, node->righttree);
}
/*
* Stuff from plannodes.h
*/
static void
_outPlan(StringInfo str, Plan *node)
{
char buf[500];
sprintf(buf, "PLAN");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
}
static void
_outResult(StringInfo str, Result *node)
{
char buf[500];
sprintf(buf, "RESULT");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :resconstantqual ");
appendStringInfo(str,buf);
_outNode(str, node->resconstantqual);
}
/*
* Existential is a subclass of Plan.
*/
static void
_outExistential(StringInfo str, Existential *node)
{
char buf[500];
sprintf(buf, "EXISTENTIAL");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
}
/*
* Append is a subclass of Plan.
*/
static void
_outAppend(StringInfo str, Append *node)
{
char buf[500];
sprintf(buf, "APPEND");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :unionplans ");
appendStringInfo(str,buf);
_outNode(str, node->unionplans);
sprintf(buf, " :unionrelid %d", node->unionrelid);
appendStringInfo(str,buf);
sprintf(buf, " :unionrtentries ");
appendStringInfo(str,buf);
_outNode(str, node->unionrtentries);
}
/*
* Join is a subclass of Plan
*/
static void
_outJoin(StringInfo str, Join *node)
{
char buf[500];
sprintf(buf, "JOIN");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
}
/*
* NestLoop is a subclass of Join
*/
static void
_outNestLoop(StringInfo str, NestLoop *node)
{
char buf[500];
sprintf(buf, "NESTLOOP");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
}
/*
* MergeJoin is a subclass of Join
*/
static void
_outMergeJoin(StringInfo str, MergeJoin *node)
{
char buf[500];
sprintf(buf, "MERGEJOIN");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :mergeclauses ");
appendStringInfo(str,buf);
_outNode(str, node->mergeclauses);
sprintf(buf, " :mergesortop %d", node->mergesortop);
appendStringInfo(str,buf);
sprintf(buf, " :mergerightorder %d", node->mergerightorder[0]);
appendStringInfo(str, buf);
sprintf(buf, " :mergeleftorder %d", node->mergeleftorder[0]);
appendStringInfo(str, buf);
}
/*
* HashJoin is a subclass of Join.
*/
static void
_outHashJoin(StringInfo str, HashJoin *node)
{
char buf[500];
sprintf(buf, "HASHJOIN");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :hashclauses ");
appendStringInfo(str,buf);
_outNode(str, node->hashclauses);
sprintf(buf, " :hashjoinop %d",node->hashjoinop);
appendStringInfo(str,buf);
sprintf(buf, " :hashjointable 0x%x", (int) node->hashjointable);
appendStringInfo(str,buf);
sprintf(buf, " :hashjointablekey %d", node->hashjointablekey);
appendStringInfo(str,buf);
sprintf(buf, " :hashjointablesize %d", node->hashjointablesize);
appendStringInfo(str,buf);
sprintf(buf, " :hashdone %d", node->hashdone);
appendStringInfo(str,buf);
}
/*
* Scan is a subclass of Node
*/
static void
_outScan(StringInfo str, Scan *node)
{
char buf[500];
sprintf(buf, "SCAN");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :scanrelid %d", node->scanrelid);
appendStringInfo(str,buf);
}
/*
* SeqScan is a subclass of Scan
*/
static void
_outSeqScan(StringInfo str, SeqScan *node)
{
char buf[500];
sprintf(buf, "SEQSCAN");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :scanrelid %d", node->scanrelid);
appendStringInfo(str,buf);
}
/*
* IndexScan is a subclass of Scan
*/
static void
_outIndexScan(StringInfo str, IndexScan *node)
{
char buf[500];
sprintf(buf, "INDEXSCAN");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :scanrelid %d", node->scan.scanrelid);
appendStringInfo(str,buf);
sprintf(buf, " :indxid ");
appendStringInfo(str,buf);
_outIntList(str, node->indxid);
sprintf(buf, " :indxqual ");
appendStringInfo(str,buf);
_outNode(str, node->indxqual);
}
/*
* Temp is a subclass of Plan
*/
static void
_outTemp(StringInfo str, Temp *node)
{
char buf[500];
sprintf(buf, "TEMP");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :tempid %d", node->tempid);
appendStringInfo(str,buf);
sprintf(buf, " :keycount %d", node->keycount);
appendStringInfo(str,buf);
}
/*
* Sort is a subclass of Temp
*/
static void
_outSort(StringInfo str, Sort *node)
{
char buf[500];
sprintf(buf, "SORT");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :tempid %d", node->tempid);
appendStringInfo(str,buf);
sprintf(buf, " :keycount %d", node->keycount);
appendStringInfo(str,buf);
}
static void
_outAgg(StringInfo str, Agg *node)
{
char buf[500];
sprintf(buf, "AGG");
appendStringInfo(str,buf);
_outPlanInfo(str,(Plan*)node);
/* the actual Agg fields */
sprintf(buf, " :numagg %d ", node->numAgg);
appendStringInfo(str, buf);
}
static void
_outGroup(StringInfo str, Group *node)
{
char buf[500];
sprintf(buf, "GRP");
appendStringInfo(str,buf);
_outPlanInfo(str,(Plan*)node);
/* the actual Group fields */
sprintf(buf, " :numCols %d ", node->numCols);
appendStringInfo(str, buf);
sprintf(buf, " :tuplePerGroup %s", node->tuplePerGroup ? "true" : "nil");
appendStringInfo(str, buf);
}
/*
* For some reason, unique is a subclass of Temp.
*/
static void
_outUnique(StringInfo str, Unique *node)
{
char buf[500];
sprintf(buf, "UNIQUE");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :tempid %d", node->tempid);
appendStringInfo(str,buf);
sprintf(buf, " :keycount %d", node->keycount);
appendStringInfo(str,buf);
}
/*
* Hash is a subclass of Temp
*/
static void
_outHash(StringInfo str, Hash *node)
{
char buf[500];
sprintf(buf, "HASH");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :hashkey ");
appendStringInfo(str,buf);
_outNode(str, node->hashkey);
sprintf(buf, " :hashtable 0x%x", (int) (node->hashtable));
appendStringInfo(str,buf);
sprintf(buf, " :hashtablekey %d", node->hashtablekey);
appendStringInfo(str,buf);
sprintf(buf, " :hashtablesize %d", node->hashtablesize);
appendStringInfo(str,buf);
}
static void
_outTee(StringInfo str, Tee *node)
{
char buf[500];
sprintf(buf, "TEE");
appendStringInfo(str,buf);
_outPlanInfo(str, (Plan*) node);
sprintf(buf, " :leftParent %X", (int) (node->leftParent));
appendStringInfo(str,buf);
sprintf(buf, " :rightParent %X", (int) (node->rightParent));
appendStringInfo(str,buf);
sprintf(buf, " :rtentries ");
appendStringInfo(str,buf);
_outNode(str, node->rtentries);
}
/*****************************************************************************
*
* Stuff from primnodes.h.
*
*****************************************************************************/
/*
* Resdom is a subclass of Node
*/
static void
_outResdom(StringInfo str, Resdom *node)
{
char buf[500];
sprintf(buf, "RESDOM");
appendStringInfo(str,buf);
sprintf(buf, " :resno %hd", node->resno);
appendStringInfo(str,buf);
sprintf(buf, " :restype %d", node->restype);
appendStringInfo(str,buf);
sprintf(buf, " :reslen %d", node->reslen);
appendStringInfo(str,buf);
sprintf(buf, " :resname \"%.*s\"", NAMEDATALEN,
((node->resname) ? ((char *) node->resname) : "null"));
appendStringInfo(str,buf);
sprintf(buf, " :reskey %d", node->reskey);
appendStringInfo(str,buf);
sprintf(buf, " :reskeyop %ld", (long int) node->reskeyop);
appendStringInfo(str,buf);
sprintf(buf, " :resjunk %d", node->resjunk);
appendStringInfo(str,buf);
}
static void
_outFjoin(StringInfo str, Fjoin *node)
{
char buf[500];
int i;
sprintf(buf, "FJOIN");
appendStringInfo(str,buf);
sprintf(buf, " :initialized %s", node->fj_initialized ? "true":"nil");
appendStringInfo(str,buf);
sprintf(buf, " :nNodes %d", node->fj_nNodes);
appendStringInfo(str,buf);
appendStringInfo(str," :innerNode ");
appendStringInfo(str,buf);
_outNode(str, node->fj_innerNode);
sprintf(buf, " :results @ 0x%x ", (int)(node->fj_results));
appendStringInfo(str, buf);
appendStringInfo( str, " :alwaysdone ");
for (i = 0; i<node->fj_nNodes; i++)
{
sprintf(buf, " %s ", ((node->fj_alwaysDone[i]) ? "true" : "nil"));
appendStringInfo(str, buf);
}
}
/*
* Expr is a subclass of Node
*/
static void
_outExpr(StringInfo str, Expr *node)
{
char buf[500];
char *opstr = NULL;
sprintf(buf, "EXPR");
appendStringInfo(str,buf);
sprintf(buf, " :typeOid %d", node->typeOid);
appendStringInfo(str,buf);
switch(node->opType) {
case OP_EXPR:
opstr = "op";
break;
case FUNC_EXPR:
opstr = "func";
break;
case OR_EXPR:
opstr = "or";
break;
case AND_EXPR:
opstr = "and";
break;
case NOT_EXPR:
opstr = "not";
break;
}
sprintf(buf, " :opType %s", opstr);
appendStringInfo(str,buf);
sprintf(buf, " :oper ");
appendStringInfo(str,buf);
_outNode(str, node->oper);
sprintf(buf, " :args ");
appendStringInfo(str,buf);
_outNode(str, node->args);
}
/*
* Var is a subclass of Expr
*/
static void
_outVar(StringInfo str, Var *node)
{
char buf[500];
sprintf(buf, "VAR");
appendStringInfo(str,buf);
sprintf(buf, " :varno %d", node->varno);
appendStringInfo(str,buf);
sprintf(buf, " :varattno %hd", node->varattno);
appendStringInfo(str,buf);
sprintf(buf, " :vartype %d", node->vartype);
appendStringInfo(str,buf);
sprintf(buf, " :varnoold %d", node->varnoold);
appendStringInfo(str,buf);
sprintf(buf, " :varoattno %d", node->varoattno);
appendStringInfo(str,buf);
}
/*
* Const is a subclass of Expr
*/
static void
_outConst(StringInfo str, Const *node)
{
char buf[500];
sprintf(buf, "CONST");
appendStringInfo(str,buf);
sprintf(buf, " :consttype %d", node->consttype);
appendStringInfo(str,buf);
sprintf(buf, " :constlen %hd", node->constlen);
appendStringInfo(str,buf);
sprintf(buf, " :constisnull %s", (node->constisnull ? "true" : "nil"));
appendStringInfo(str,buf);
sprintf(buf, " :constvalue ");
appendStringInfo(str,buf);
if (node->constisnull) {
sprintf(buf, "NIL ");
appendStringInfo(str,buf);
} else {
_outDatum(str, node->constvalue, node->consttype);
}
sprintf(buf, " :constbyval %s", (node->constbyval ? "true" : "nil"));
appendStringInfo(str,buf);
}
/*
* Aggreg
*/
static void
_outAggreg(StringInfo str, Aggreg *node)
{
char buf[500];
sprintf(buf, "AGGREG");
appendStringInfo(str,buf);
sprintf(buf, " :aggname \"%.*s\"", NAMEDATALEN, (char*)node->aggname);
appendStringInfo(str,buf);
sprintf(buf, " :basetype %d", node->basetype);
appendStringInfo(str,buf);
sprintf(buf, " :aggtype %d", node->aggtype);
appendStringInfo(str,buf);
sprintf(buf, " :aggno %d", node->aggno);
appendStringInfo(str,buf);
sprintf(buf, " :target ");
appendStringInfo(str,buf);
_outNode(str, node->target);
}
/*
* Array is a subclass of Expr
*/
static void
_outArray(StringInfo str, Array *node)
{
char buf[500];
int i;
sprintf(buf, "ARRAY");
appendStringInfo(str, buf);
sprintf(buf, " :arrayelemtype %d", node->arrayelemtype);
appendStringInfo(str, buf);
sprintf(buf, " :arrayelemlength %d", node->arrayelemlength);
appendStringInfo(str, buf);
sprintf(buf, " :arrayelembyval %c", (node->arrayelembyval) ? 't' : 'f');
appendStringInfo(str, buf);
sprintf(buf, " :arrayndim %d", node->arrayndim);
appendStringInfo(str, buf);
sprintf(buf, " :arraylow ");
appendStringInfo(str, buf);
for (i = 0; i < node->arrayndim; i++){
sprintf(buf, " %d", node->arraylow.indx[i]);
appendStringInfo(str, buf);
}
sprintf(buf, " :arrayhigh ");
appendStringInfo(str, buf);
for (i = 0; i < node->arrayndim; i++){
sprintf(buf, " %d", node->arrayhigh.indx[i]);
appendStringInfo(str, buf);
}
sprintf(buf, " :arraylen %d", node->arraylen);
appendStringInfo(str, buf);
}
/*
* ArrayRef is a subclass of Expr
*/
static void
_outArrayRef(StringInfo str, ArrayRef *node)
{
char buf[500];
sprintf(buf, "ARRAYREF");
appendStringInfo(str, buf);
sprintf(buf, " :refelemtype %d", node->refelemtype);
appendStringInfo(str, buf);
sprintf(buf, " :refattrlength %d", node->refattrlength);
appendStringInfo(str, buf);
sprintf(buf, " :refelemlength %d", node->refelemlength);
appendStringInfo(str, buf);
sprintf(buf, " :refelembyval %c", (node->refelembyval) ? 't' : 'f');
appendStringInfo(str, buf);
sprintf(buf, " :refupperindex ");
appendStringInfo(str, buf);
_outNode(str, node->refupperindexpr);
sprintf(buf, " :reflowerindex ");
appendStringInfo(str, buf);
_outNode(str, node->reflowerindexpr);
sprintf(buf, " :refexpr ");
appendStringInfo(str, buf);
_outNode(str, node->refexpr);
sprintf(buf, " :refassgnexpr ");
appendStringInfo(str, buf);
_outNode(str, node->refassgnexpr);
}
/*
* Func is a subclass of Expr
*/
static void
_outFunc(StringInfo str, Func *node)
{
char buf[500];
sprintf(buf, "FUNC");
appendStringInfo(str,buf);
sprintf(buf, " :funcid %d", node->funcid);
appendStringInfo(str,buf);
sprintf(buf, " :functype %d", node->functype);
appendStringInfo(str,buf);
sprintf(buf, " :funcisindex %s",
(node->funcisindex ? "true" : "nil"));
appendStringInfo(str,buf);
sprintf(buf, " :funcsize %d", node->funcsize);
appendStringInfo(str, buf);
sprintf(buf, " :func_fcache @ 0x%x", (int)(node->func_fcache));
appendStringInfo(str, buf);
appendStringInfo(str, " :func_tlist ");
_outNode(str, node->func_tlist);
appendStringInfo(str, " :func_planlist ");
_outNode(str, node->func_planlist);
}
/*
* Oper is a subclass of Expr
*/
static void
_outOper(StringInfo str, Oper *node)
{
char buf[500];
sprintf(buf, "OPER");
appendStringInfo(str,buf);
sprintf(buf, " :opno %d", node->opno);
appendStringInfo(str,buf);
sprintf(buf, " :opid %d", node->opid);
appendStringInfo(str,buf);
sprintf(buf, " :opresulttype %d", node->opresulttype);
appendStringInfo(str,buf);
}
/*
* Param is a subclass of Expr
*/
static void
_outParam(StringInfo str, Param *node)
{
char buf[500];
sprintf(buf, "PARAM");
appendStringInfo(str,buf);
sprintf(buf, " :paramkind %d", node->paramkind);
appendStringInfo(str,buf);
sprintf(buf, " :paramid %hd", node->paramid);
appendStringInfo(str,buf);
sprintf(buf, " :paramname \"%.*s\"", NAMEDATALEN, node->paramname);
appendStringInfo(str,buf);
sprintf(buf, " :paramtype %d", node->paramtype);
appendStringInfo(str,buf);
appendStringInfo(str, " :param_tlist ");
_outNode(str, node->param_tlist);
}
/*
* Stuff from execnodes.h
*/
/*
* EState is a subclass of Node.
*/
static void
_outEState(StringInfo str, EState *node)
{
char buf[500];
sprintf(buf, "ESTATE");
appendStringInfo(str,buf);
sprintf(buf, " :direction %d", node->es_direction);
appendStringInfo(str,buf);
sprintf(buf, " :range_table ");
appendStringInfo(str,buf);
_outNode(str, node->es_range_table);
sprintf(buf, " :result_relation_info @ 0x%x",
(int) (node->es_result_relation_info));
appendStringInfo(str,buf);
}
/*
* Stuff from relation.h
*/
static void
_outRel(StringInfo str, Rel *node)
{
char buf[500];
sprintf(buf, "REL");
appendStringInfo(str,buf);
sprintf(buf, " :relids ");
appendStringInfo(str,buf);
_outIntList(str, node->relids);
sprintf(buf, " :indexed %s", (node->indexed ? "true" : "nil"));
appendStringInfo(str,buf);
sprintf(buf, " :pages %u", node->pages);
appendStringInfo(str,buf);
sprintf(buf, " :tuples %u", node->tuples);
appendStringInfo(str,buf);
sprintf(buf, " :size %u", node->size);
appendStringInfo(str,buf);
sprintf(buf, " :width %u", node->width);
appendStringInfo(str,buf);
sprintf(buf, " :targetlist ");
appendStringInfo(str,buf);
_outNode(str, node->targetlist);
sprintf(buf, " :pathlist ");
appendStringInfo(str,buf);
_outNode(str, node->pathlist);
/*
* Not sure if these are nodes or not. They're declared as
* struct Path *. Since i don't know, i'll just print the
* addresses for now. This can be changed later, if necessary.
*/
sprintf(buf, " :unorderedpath @ 0x%x", (int)(node->unorderedpath));
appendStringInfo(str,buf);
sprintf(buf, " :cheapestpath @ 0x%x", (int)(node->cheapestpath));
appendStringInfo(str,buf);
sprintf(buf, " :pruneable %s", (node->pruneable ? "true" : "nil"));
appendStringInfo(str,buf);
#if 0
sprintf(buf, " :classlist ");
appendStringInfo(str,buf);
_outNode(str, node->classlist);
sprintf(buf, " :indexkeys ");
appendStringInfo(str,buf);
_outNode(str, node->indexkeys);
sprintf(buf, " :ordering ");
appendStringInfo(str,buf);
_outNode(str, node->ordering);
#endif
sprintf(buf, " :clauseinfo ");
appendStringInfo(str,buf);
_outNode(str, node->clauseinfo);
sprintf(buf, " :joininfo ");
appendStringInfo(str,buf);
_outNode(str, node->joininfo);
sprintf(buf, " :innerjoin ");
appendStringInfo(str,buf);
_outNode(str, node->innerjoin);
}
/*
* TargetEntry is a subclass of Node.
*/
static void
_outTargetEntry(StringInfo str, TargetEntry *node)
{
char buf[500];
sprintf(buf, "TLE");
appendStringInfo(str,buf);
sprintf(buf, " :resdom ");
appendStringInfo(str,buf);
_outNode(str, node->resdom);
sprintf(buf, " :expr ");
appendStringInfo(str,buf);
if (node->expr) {
_outNode(str, node->expr);
}else {
appendStringInfo(str, "nil");
}
}
static void
_outRangeTblEntry(StringInfo str, RangeTblEntry *node)
{
char buf[500];
sprintf(buf, "RTE");
appendStringInfo(str,buf);
sprintf(buf, " :relname \"%.*s\"", NAMEDATALEN,
((node->relname) ? ((char *) node->relname) : "null"));
appendStringInfo(str,buf);
sprintf(buf, " :inh %d ", node->inh);
appendStringInfo(str,buf);
sprintf(buf, " :refname \"%.*s\"", NAMEDATALEN,
((node->refname) ? ((char *) node->refname) : "null"));
appendStringInfo(str,buf);
sprintf(buf, " :relid %d ", node->relid);
appendStringInfo(str,buf);
}
/*
* Path is a subclass of Node.
*/
static void
_outPath(StringInfo str, Path *node)
{
char buf[500];
sprintf(buf, "PATH");
appendStringInfo(str,buf);
sprintf(buf, " :pathtype %d", node->pathtype);
appendStringInfo(str,buf);
sprintf(buf, " :cost %f", node->path_cost);
appendStringInfo(str,buf);
sprintf(buf, " :keys ");
appendStringInfo(str,buf);
_outNode(str, node->keys);
}
/*
* IndexPath is a subclass of Path.
*/
static void
_outIndexPath(StringInfo str, IndexPath *node)
{
char buf[500];
sprintf(buf, "INDEXPATH");
appendStringInfo(str,buf);
sprintf(buf, " :pathtype %d", node->path.pathtype);
appendStringInfo(str,buf);
/* sprintf(buf, " :parent ");
appendStringInfo(str,buf);
_outNode(str, node->parent); */
sprintf(buf, " :cost %f", node->path.path_cost);
appendStringInfo(str,buf);
#if 0
sprintf(buf, " :p_ordering ");
appendStringInfo(str,buf);
_outNode(str, node->path.p_ordering);
#endif
sprintf(buf, " :keys ");
appendStringInfo(str,buf);
_outNode(str, node->path.keys);
sprintf(buf, " :indexid ");
appendStringInfo(str,buf);
_outIntList(str, node->indexid);
sprintf(buf, " :indexqual ");
appendStringInfo(str,buf);
_outNode(str, node->indexqual);
}
/*
* JoinPath is a subclass of Path
*/
static void
_outJoinPath(StringInfo str, JoinPath *node)
{
char buf[500];
sprintf(buf, "JOINPATH");
appendStringInfo(str,buf);
sprintf(buf, " :pathtype %d", node->path.pathtype);
appendStringInfo(str,buf);
/* sprintf(buf, " :parent ");
appendStringInfo(str,buf);
_outNode(str, node->parent); */
sprintf(buf, " :cost %f", node->path.path_cost);
appendStringInfo(str,buf);
#if 0
sprintf(buf, " :p_ordering ");
appendStringInfo(str,buf);
_outNode(str, node->path.p_ordering);
#endif
sprintf(buf, " :keys ");
appendStringInfo(str,buf);
_outNode(str, node->path.keys);
sprintf(buf, " :pathclauseinfo ");
appendStringInfo(str,buf);
_outNode(str, node->pathclauseinfo);
/*
* Not sure if these are nodes; they're declared as "struct path *".
* For now, i'll just print the addresses.
*/
sprintf(buf, " :outerjoinpath @ 0x%x", (int)(node->outerjoinpath));
appendStringInfo(str,buf);
sprintf(buf, " :innerjoinpath @ 0x%x", (int)(node->innerjoinpath));
appendStringInfo(str,buf);
sprintf(buf, " :outerjoincost %f", node->path.outerjoincost);
appendStringInfo(str,buf);
sprintf(buf, " :joinid ");
appendStringInfo(str,buf);
_outIntList(str, node->path.joinid);
}
/*
* MergePath is a subclass of JoinPath.
*/
static void
_outMergePath(StringInfo str, MergePath *node)
{
char buf[500];
sprintf(buf, "MERGEPATH");
appendStringInfo(str,buf);
sprintf(buf, " :pathtype %d", node->jpath.path.pathtype);
appendStringInfo(str,buf);
sprintf(buf, " :cost %f", node->jpath.path.path_cost);
appendStringInfo(str,buf);
sprintf(buf, " :keys ");
appendStringInfo(str,buf);
_outNode(str, node->jpath.path.keys);
sprintf(buf, " :pathclauseinfo ");
appendStringInfo(str,buf);
_outNode(str, node->jpath.pathclauseinfo);
/*
* Not sure if these are nodes; they're declared as "struct path *".
* For now, i'll just print the addresses.
*/
sprintf(buf, " :outerjoinpath @ 0x%x", (int)(node->jpath.outerjoinpath));
appendStringInfo(str,buf);
sprintf(buf, " :innerjoinpath @ 0x%x", (int)(node->jpath.innerjoinpath));
appendStringInfo(str,buf);
sprintf(buf, " :outerjoincost %f", node->jpath.path.outerjoincost);
appendStringInfo(str,buf);
sprintf(buf, " :joinid ");
appendStringInfo(str,buf);
_outIntList(str, node->jpath.path.joinid);
sprintf(buf, " :path_mergeclauses ");
appendStringInfo(str,buf);
_outNode(str, node->path_mergeclauses);
sprintf(buf, " :outersortkeys ");
appendStringInfo(str,buf);
_outNode(str, node->outersortkeys);
sprintf(buf, " :innersortkeys ");
appendStringInfo(str,buf);
_outNode(str, node->innersortkeys);
}
/*
* HashPath is a subclass of JoinPath.
*/
static void
_outHashPath(StringInfo str, HashPath *node)
{
char buf[500];
sprintf(buf, "HASHPATH");
appendStringInfo(str,buf);
sprintf(buf, " :pathtype %d", node->jpath.path.pathtype);
appendStringInfo(str,buf);
sprintf(buf, " :cost %f", node->jpath.path.path_cost);
appendStringInfo(str,buf);
sprintf(buf, " :keys ");
appendStringInfo(str,buf);
_outNode(str, node->jpath.path.keys);
sprintf(buf, " :pathclauseinfo ");
appendStringInfo(str,buf);
_outNode(str, node->jpath.pathclauseinfo);
/*
* Not sure if these are nodes; they're declared as "struct path *".
* For now, i'll just print the addresses.
*/
sprintf(buf, " :outerjoinpath @ 0x%x", (int) (node->jpath.outerjoinpath));
appendStringInfo(str,buf);
sprintf(buf, " :innerjoinpath @ 0x%x", (int) (node->jpath.innerjoinpath));
appendStringInfo(str,buf);
sprintf(buf, " :outerjoincost %f", node->jpath.path.outerjoincost);
appendStringInfo(str,buf);
sprintf(buf, " :joinid ");
appendStringInfo(str,buf);
_outIntList(str, node->jpath.path.joinid);
sprintf(buf, " :path_hashclauses ");
appendStringInfo(str,buf);
_outNode(str, node->path_hashclauses);
sprintf(buf, " :outerhashkeys ");
appendStringInfo(str,buf);
_outNode(str, node->outerhashkeys);
sprintf(buf, " :innerhashkeys ");
appendStringInfo(str,buf);
_outNode(str, node->innerhashkeys);
}
/*
* OrderKey is a subclass of Node.
*/
static void
_outOrderKey(StringInfo str, OrderKey *node)
{
char buf[500];
sprintf(buf, "ORDERKEY");
appendStringInfo(str,buf);
sprintf(buf, " :attribute_number %d", node->attribute_number);
appendStringInfo(str,buf);
sprintf(buf, " :array_index %d", node->array_index);
appendStringInfo(str,buf);
}
/*
* JoinKey is a subclass of Node.
*/
static void
_outJoinKey(StringInfo str, JoinKey *node)
{
char buf[500];
sprintf(buf, "JOINKEY");
appendStringInfo(str,buf);
sprintf(buf, " :outer ");
appendStringInfo(str,buf);
_outNode(str, node->outer);
sprintf(buf, " :inner ");
appendStringInfo(str,buf);
_outNode(str, node->inner);
}
/*
* MergeOrder is a subclass of Node.
*/
static void
_outMergeOrder(StringInfo str, MergeOrder *node)
{
char buf[500];
sprintf(buf, "MERGEORDER");
appendStringInfo(str,buf);
sprintf(buf, " :join_operator %d", node->join_operator);
appendStringInfo(str,buf);
sprintf(buf, " :left_operator %d", node->left_operator);
appendStringInfo(str,buf);
sprintf(buf, " :right_operator %d", node->right_operator);
appendStringInfo(str,buf);
sprintf(buf, " :left_type %d", node->left_type);
appendStringInfo(str,buf);
sprintf(buf, " :right_type %d", node->right_type);
appendStringInfo(str,buf);
}
/*
* CInfo is a subclass of Node.
*/
static void
_outCInfo(StringInfo str, CInfo *node)
{
char buf[500];
sprintf(buf, "CINFO");
appendStringInfo(str,buf);
sprintf(buf, " :clause ");
appendStringInfo(str,buf);
_outNode(str, node->clause);
sprintf(buf, " :selectivity %f", node->selectivity);
appendStringInfo(str,buf);
sprintf(buf, " :notclause %s", (node->notclause ? "true" : "nil"));
appendStringInfo(str,buf);
sprintf(buf, " :indexids ");
appendStringInfo(str,buf);
_outNode(str, node->indexids);
sprintf(buf, " :mergesortorder ");
appendStringInfo(str,buf);
_outNode(str, node->mergesortorder);
sprintf(buf, " :hashjoinoperator %d", node->hashjoinoperator);
appendStringInfo(str,buf);
}
/*
* JoinMethod is a subclass of Node.
*/
static void
_outJoinMethod(StringInfo str, JoinMethod *node)
{
char buf[500];
sprintf(buf, "JOINMETHOD");
appendStringInfo(str,buf);
sprintf(buf, " :jmkeys ");
appendStringInfo(str,buf);
_outNode(str, node->jmkeys);
sprintf(buf, " :clauses ");
appendStringInfo(str,buf);
_outNode(str, node->clauses);
}
/*
* HInfo is a subclass of JoinMethod.
*/
static void
_outHInfo(StringInfo str, HInfo *node)
{
char buf[500];
sprintf(buf, "HASHINFO");
appendStringInfo(str,buf);
sprintf(buf, " :hashop ");
appendStringInfo(str,buf);
sprintf(buf, "%d",node->hashop);
appendStringInfo(str,buf);
sprintf(buf, " :jmkeys ");
appendStringInfo(str,buf);
_outNode(str, node->jmethod.jmkeys);
sprintf(buf, " :clauses ");
appendStringInfo(str,buf);
_outNode(str, node->jmethod.clauses);
}
/*
* JInfo is a subclass of Node.
*/
static void
_outJInfo(StringInfo str, JInfo *node)
{
char buf[500];
sprintf(buf, "JINFO");
appendStringInfo(str,buf);
sprintf(buf, " :otherrels ");
appendStringInfo(str,buf);
_outIntList(str, node->otherrels);
sprintf(buf, " :jinfoclauseinfo ");
appendStringInfo(str,buf);
_outNode(str, node->jinfoclauseinfo);
sprintf(buf, " :mergesortable %s",
(node->mergesortable ? "true" : "nil"));
appendStringInfo(str,buf);
sprintf(buf, " :hashjoinable %s",
(node->hashjoinable ? "true" : "nil"));
appendStringInfo(str,buf);
}
/*
* Print the value of a Datum given its type.
*/
static void
_outDatum(StringInfo str, Datum value, Oid type)
{
char buf[500];
Size length, typeLength;
bool byValue;
int i;
char *s;
/*
* find some information about the type and the "real" length
* of the datum.
*/
byValue = get_typbyval(type);
typeLength = get_typlen(type);
length = datumGetSize(value, type, byValue, typeLength);
if (byValue) {
s = (char *) (&value);
sprintf(buf, " %d [ ", length);
appendStringInfo(str,buf);
for (i=0; i<sizeof(Datum); i++) {
sprintf(buf, "%d ", (int) (s[i]) );
appendStringInfo(str,buf);
}
sprintf(buf, "] ");
appendStringInfo(str,buf);
} else { /* !byValue */
s = (char *) DatumGetPointer(value);
if (!PointerIsValid(s)) {
sprintf(buf, " 0 [ ] ");
appendStringInfo(str,buf);
} else {
/*
* length is unsigned - very bad to do < comparison to -1 without
* casting it to int first!! -mer 8 Jan 1991
*/
if (((int)length) <= -1) {
length = VARSIZE(s);
}
sprintf(buf, " %d [ ", length);
appendStringInfo(str,buf);
for (i=0; i<length; i++) {
sprintf(buf, "%d ", (int) (s[i]) );
appendStringInfo(str,buf);
}
sprintf(buf, "] ");
appendStringInfo(str,buf);
}
}
}
static void
_outIter(StringInfo str, Iter *node)
{
appendStringInfo(str,"ITER");
appendStringInfo(str," :iterexpr ");
_outNode(str, node->iterexpr);
}
static void
_outStream(StringInfo str, Stream *node)
{
char buf[500];
appendStringInfo(str,"STREAM");
sprintf(buf, " :pathptr @ 0x%x", (int)(node->pathptr));
appendStringInfo(str,buf);
sprintf(buf, " :cinfo @ 0x%x", (int)(node->cinfo));
appendStringInfo(str,buf);
sprintf(buf, " :clausetype %d", (int)(node->clausetype));
appendStringInfo(str,buf);
sprintf(buf, " :upstream @ 0x%x", (int)(node->upstream));
appendStringInfo(str,buf);
sprintf(buf, " :downstream @ 0x%x", (int)(node->downstream));
appendStringInfo(str,buf);
sprintf(buf, " :groupup %d", node->groupup);
appendStringInfo(str,buf);
sprintf(buf, " :groupcost %f", node->groupcost);
appendStringInfo(str,buf);
sprintf(buf, " :groupsel %f", node->groupsel);
appendStringInfo(str,buf);
}
static void
_outValue(StringInfo str, Value *value)
{
char buf[500];
switch(value->type) {
case T_String:
sprintf(buf, "\"%s\"", value->val.str);
appendStringInfo(str, buf);
break;
case T_Integer:
sprintf(buf, "%ld", value->val.ival);
appendStringInfo(str, buf);
break;
case T_Float:
sprintf(buf, "%f", value->val.dval);
appendStringInfo(str, buf);
break;
default:
break;
}
return;
}
/*
* _outNode -
* converts a Node into ascii string and append it to 'str'
*/
static void
_outNode(StringInfo str, void *obj)
{
if (obj==NULL) {
appendStringInfo(str, "nil");
return;
}
if (nodeTag(obj)==T_List) {
List *l;
appendStringInfo(str, "(");
foreach(l, (List*)obj) {
_outNode(str, lfirst(l));
if (lnext(l))
appendStringInfo(str, " ");
}
appendStringInfo(str, ")");
}else {
appendStringInfo(str, "{");
switch(nodeTag(obj)) {
case T_Query:
_outQuery(str, obj);
break;
case T_Plan:
_outPlan(str, obj);
break;
case T_Result:
_outResult(str, obj);
break;
case T_Existential:
_outExistential(str, obj);
break;
case T_Append:
_outAppend(str, obj);
break;
case T_Join:
_outJoin(str, obj);
break;
case T_NestLoop:
_outNestLoop(str, obj);
break;
case T_MergeJoin:
_outMergeJoin(str, obj);
break;
case T_HashJoin:
_outHashJoin(str, obj);
break;
case T_Scan:
_outScan(str, obj);
break;
case T_SeqScan:
_outSeqScan(str, obj);
break;
case T_IndexScan:
_outIndexScan(str, obj);
break;
case T_Temp:
_outTemp(str, obj);
break;
case T_Sort:
_outSort(str, obj);
break;
case T_Agg:
_outAgg(str, obj);
break;
case T_Group:
_outGroup(str, obj);
break;
case T_Unique:
_outUnique(str, obj);
break;
case T_Hash:
_outHash(str, obj);
break;
case T_Tee:
_outTee(str, obj);
break;
case T_Resdom:
_outResdom(str, obj);
break;
case T_Fjoin:
_outFjoin(str, obj);
break;
case T_Expr:
_outExpr(str, obj);
break;
case T_Var:
_outVar(str, obj);
break;
case T_Const:
_outConst(str, obj);
break;
case T_Aggreg:
_outAggreg(str, obj);
break;
case T_Array:
_outArray(str, obj);
break;
case T_ArrayRef:
_outArrayRef(str, obj);
break;
case T_Func:
_outFunc(str, obj);
break;
case T_Oper:
_outOper(str, obj);
break;
case T_Param:
_outParam(str, obj);
break;
case T_EState:
_outEState(str, obj);
break;
case T_Rel:
_outRel(str, obj);
break;
case T_TargetEntry:
_outTargetEntry(str, obj);
break;
case T_RangeTblEntry:
_outRangeTblEntry(str, obj);
break;
case T_Path:
_outPath(str, obj);
break;
case T_IndexPath:
_outIndexPath (str, obj);
break;
case T_JoinPath:
_outJoinPath(str, obj);
break;
case T_MergePath:
_outMergePath(str, obj);
break;
case T_HashPath:
_outHashPath(str, obj);
break;
case T_OrderKey:
_outOrderKey(str, obj);
break;
case T_JoinKey:
_outJoinKey(str, obj);
break;
case T_MergeOrder:
_outMergeOrder(str, obj);
break;
case T_CInfo:
_outCInfo(str, obj);
break;
case T_JoinMethod:
_outJoinMethod(str, obj);
break;
case T_HInfo:
_outHInfo(str, obj);
break;
case T_JInfo:
_outJInfo(str, obj);
break;
case T_Iter:
_outIter(str, obj);
break;
case T_Stream:
_outStream(str, obj);
break;
case T_Integer: case T_String: case T_Float:
_outValue(str, obj);
break;
default:
elog(NOTICE, "_outNode: don't know how to print type %d",
nodeTag(obj));
break;
}
appendStringInfo(str, "}");
}
return;
}
/*
* nodeToString -
* returns the ascii representation of the Node
*/
char *
nodeToString(void *obj)
{
StringInfo str;
char *s;
if (obj==NULL)
return "";
Assert(obj!=NULL);
str = makeStringInfo();
_outNode(str, obj);
s = str->data;
pfree(str);
return s;
}
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