head	1.46;
access;
symbols
	release_4_2:1.46
	aix_ok:1.44
	Version_2_1:1.16;
locks; strict;
comment	@ * @;


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desc
@copy functions for nodes
@


1.46
log
@casting to shut up gcc
name-safing
@
text
@/* ----------------------------------------------------------------
 *   FILE
 *	copyfuncs.c
 *	
 *   DESCRIPTION
 *	 Copy functions for Postgres tree nodes.
 *
 *   INTERFACE ROUTINES
 *	lispCopy		- partial copy function for lisp structures
 *	NodeCopy		- function to recursively copy a node 
 *	CopyObject		- \ simpler interfaces to 
 *	CopyObjectUsing		- /  NodeCopy()
 *	_copyXXX		- copy function for class XXX
 *
 *   NOTES
 *	These routines are intended for use during development, and should
 *	be improved before we do a production version.  Right now, every node
 *	we create ships around a pointer to the function that knows how to
 *	copy it.
 *
 *   IDENTIFICATION
 *	$Header: /import/faerie/faerie/aoki/postgres/src/backend/lib/RCS/copyfuncs.c,v 1.45 1994/02/02 00:22:27 marc Exp aoki $
 * ----------------------------------------------------------------
 */

/* ----------------
 *	this list of header files taken from other node file headers.
 * ----------------
 */
#include <stdio.h>
#include <strings.h>

#include "tmp/postgres.h"

#include "access/heapam.h"
#include "access/htup.h"
#include "fmgr.h"
#include "utils/log.h"
#include "storage/lmgr.h"
#include "utils/palloc.h"

#include "nodes/execnodes.h"
#include "nodes/nodes.h"
#include "nodes/pg_lisp.h"
#include "nodes/plannodes.h"
#include "nodes/primnodes.h"
#include "nodes/relation.h"

#include "catalog/syscache.h"
#include "catalog/pg_type.h"

extern bool	_copyLispValue();

/* ----------------------------------------------------------------
 *	lispCopy
 *
 * 	This copy function is used to make copies of just the
 *	"internal nodes" (lisp structures) but not copy "leaf"
 *	nodes.  In simpler terms, the recursion stops at the
 *	first non-lisp node type.  This function allocates
 *	memory with palloc().
 * ----------------------------------------------------------------
 */

LispValue
lispCopy(lispObject)
     LispValue lispObject;
{
     LispValue newnode;
     if (lispObject == LispNil)
	 return(LispNil);
     
     newnode = (LispValue) lispAlloc();
     newnode->type = lispObject->type;
     newnode->outFunc = lispObject->outFunc;
     newnode->equalFunc = lispObject->equalFunc;
     newnode->copyFunc = lispObject->copyFunc;
     
     switch (lispObject->type) {
     case T_LispSymbol:
	  newnode->val.name = lispObject->val.name;
	  newnode->cdr = LispNil;
	  break;
     case T_LispStr:
	  newnode->val.str = lispObject->val.str;
	  newnode->cdr = LispNil;
	  break;
     case T_LispInt:
	  newnode->val.fixnum = lispObject->val.fixnum;
	  newnode->cdr = LispNil;
	  break;
     case T_LispFloat:
	  newnode->val.flonum = lispObject->val.flonum;
	  newnode->cdr = LispNil;
	  break;
     case T_LispVector:
	  newnode->val.veci = lispObject->val.veci;
	  newnode->cdr = LispNil;
	  break;
     case T_LispList:
	  newnode->val.car = lispCopy(lispObject->val.car);
	  newnode->cdr = lispCopy(lispObject->cdr);
	  break;
     default:
	  newnode = lispObject;
     }
     return (newnode);
}

/* ----------------------------------------------------------------
 *	NodeCopy
 *	CopyObject
 *	CopyObjectUsing
 *
 *	These functions provide support for copying complex
 *	trees of all node types which supply simple copy functions
 *	defined below.
 * ----------------------------------------------------------------
 */

/* ----------------
 *	NodeCopy is a function which calls the node's own
 *	copy function to copy the node using the specified allocation
 *	function and update the value of the "to" pointer.
 * ----------------
 */
bool
NodeCopy(from, toP, alloc)
    Node 	from;
    Node 	*toP;
    char *	(*alloc)();
{
    bool	(*copyfunc)();

    /* ----------------
     *	if the "from" node is NULL, then just assign NULL to the 
     *  "to" node. 
     * ----------------
     */
    if (from == NULL) {
	(*toP) = NULL;
	return true;
    }
    
    /* ----------------
     *	if the copy function doesn't exist then we print
     *  a warning and do a pointer assignment.
     * ----------------
     */
    copyfunc = from->copyFunc;
    if (copyfunc == NULL) {
	elog(NOTICE,
	     "NodeCopy: NULL copy function (type: %d) -- doing ptr assign",
	     from->type);
	(*toP) = from;
	return true;
    } else
	return (*copyfunc)(from, toP, alloc);
}

/* ----------------
 *	CopyObject is a simpler top level interface
 *	to the NodeCopy.  Given a pointer to
 *	the root of a node tree, it returns a pointer to a copy
 *	of the tree which was allocated with palloc.
 * ----------------
 */
Node
CopyObject(from)
    Node from;
{
    Node copy;
    
#ifndef PALLOC_DEBUG
    Pointer (*f)() = palloc;
#else
    Pointer (*f)() = palloc_debug;
#endif PALLOC_DEBUG

    if (NodeCopy(from, &copy, f) == true)
	return copy;
    else
	return NULL;
}

/* ----------------
 *	CopyObjectUsing() is identical to CopyObject() but takes
 *	a second parameter which is a pointer to the allocation
 *	function to use in making the copy.
 *
 *	In particular, this function is needed in the parallel
 *	executor code to place copies of query plans into shared
 *	memory.
 * ----------------
 */
Node
CopyObjectUsing(from, alloc)
    Node 	from;
    char *	(*alloc)();
{
    Node copy;

    if (alloc == NULL) {
	elog(NOTICE, "CopyObjectUsing: alloc function is NULL!");
	return NULL;
    }
	
    if (NodeCopy(from, &copy, alloc) == true)
	return copy;
    else
	return NULL;
}

/* ----------------------------------------------------------------
 *	NodeCopy/CopyObject/CopyObjectUsing support functions
 * ----------------------------------------------------------------
 */

/* ----------------
 *	Node_Copy
 *
 *	a macro to simplify calling of NodeCopy from within
 *	the copy support routines:
 *
 *		if (NodeCopy(from->state, &(newnode->state), alloc) != true)
 *		   return false;
 *
 *	becomes
 *
 *		Node_Copy(from, newnode, alloc, state);
 *
 * ----------------
 */
#define Node_Copy(a, b, c, d) \
    if (NodeCopy(((a)->d), &((b)->d), c) != true) { \
       return false; \
    } 

/* ----------------
 *	COPY_CHECKARGS, COPY_CHECKNULL and COPY_NEW are macros used
 *	to simplify all the _copy functions.  COPY_NEW_TYPE is exactly
 *	like COPY_NEW, except that instead of returning 'false' on
 *	failure, it returns the appropriate type of NULL.
 * ----------------
 */
#ifndef PALLOC_DEBUG    
#define COPYALLOC(x)	(*alloc)(x)
#else
#define COPYALLOC(x)	(alloc == palloc_debug ? palloc(x) : (*alloc)(x))
#endif PALLOC_DEBUG

#define COPY_CHECKARGS() \
    if (to == NULL || alloc == NULL) { \
       return false; \
    } 
				      
#define COPY_CHECKNULL() \
    if (from == NULL) { \
	(*to) = NULL; \
	return true; \
    } 

#define COPY_NEW(c) \
    newnode = (c) COPYALLOC(classSize(c)); \
    if (newnode == NULL) { \
	return false; \
    } 

#define COPY_NEW_TYPE(c) \
    newnode = (c) COPYALLOC(classSize(c)); \
    if (newnode == NULL) { \
	return (c) NULL; \
    }

/* ****************************************************************
 *		       nodes.h copy functions
 * ****************************************************************
 */

/* ----------------
 *	CopyNodeFields
 *
 *	This function copies the fields of the Node node.  It is used by
 *	all the copy functions for classes which inherit from Node.
 * ----------------
 */
bool CopyNodeFields(from, newnode, alloc)
    Node 	from;
    Node 	newnode;
    char *	(*alloc)();
{
    newnode->type = from->type;
    newnode->outFunc = from->outFunc;
    newnode->equalFunc = from->equalFunc;
    newnode->copyFunc = from->copyFunc;
    return true;
}
   
/* ----------------
 *	_copyNode
 * ----------------
 */
        
bool
_copyNode(from, to, alloc)
    Node	from;
    Node	*to;
    char *	(*alloc)();
{
    Node	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Node);
    
    /* ----------------
     *	copy the node
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    
    (*to) = newnode;
    return true;
}

/* ****************************************************************
 *		     plannodes.h copy functions
 * ****************************************************************
 */

/* ----------------
 *	CopyPlanFields
 *
 *	This function copies the fields of the Plan node.  It is used by
 *	all the copy functions for classes which inherit from Plan.
 * ----------------
 */
bool CopyPlanFields(from, newnode, alloc)
    Plan 	from;
    Plan 	newnode;
    char *	(*alloc)();
{
    newnode->cost = 		from->cost;
    newnode->plan_size = 	from->plan_size;
    newnode->plan_width = 	from->plan_width;
    newnode->fragment =		from->fragment;
    newnode->parallel = 	from->parallel;
    
    Node_Copy(from, newnode, alloc, state);
    Node_Copy(from, newnode, alloc, qptargetlist);
    Node_Copy(from, newnode, alloc, qpqual);
    Node_Copy(from, newnode, alloc, lefttree);
    Node_Copy(from, newnode, alloc, righttree);
    return true;
}
    
/* ----------------
 *	_copyPlan
 * ----------------
 */
bool
_copyPlan(from, to, alloc)
    Plan	from;
    Plan	*to;
    char *	(*alloc)();
{
    Plan	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Plan);
    
    /* ----------------
     *	copy the node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    
    (*to) = newnode;
    return true;
}

    
/* ----------------
 *	_copyExistential
 * ----------------
 */
bool
_copyExistential(from, to, alloc)
    Existential	from;
    Existential	*to;
    char *	(*alloc)();
{
    Existential	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Existential);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);

    (*to) = newnode;
    return true;
}

    
/* ----------------
 *	_copyResult
 * ----------------
 */
bool
_copyResult(from, to, alloc)
    Result	from;
    Result	*to;
    char *	(*alloc)();
{
    Result	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Result);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node 
     * ----------------
     */
    Node_Copy(from, newnode, alloc, resrellevelqual);
    Node_Copy(from, newnode, alloc, resconstantqual);
    Node_Copy(from, newnode, alloc, resstate);
        
    (*to) = newnode;
    return true;
}
    
/* ----------------
 *	_copyAppend
 * ----------------
 */
bool
_copyAppend(from, to, alloc)
    Append	from;
    Append	*to;
    char *	(*alloc)();
{
    Append	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Append);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node 
     * ----------------
     */
    Node_Copy(from, newnode, alloc, unionplans);
    Node_Copy(from, newnode, alloc, unionrelid);
    Node_Copy(from, newnode, alloc, unionrtentries);
    Node_Copy(from, newnode, alloc, unionstate);
        
    (*to) = newnode;
    return true;
}

    
/* ----------------
 *	CopyScanFields
 *
 *	This function copies the fields of the Scan node.  It is used by
 *	all the copy functions for classes which inherit from Scan.
 * ----------------
 */
bool
CopyScanFields(from, newnode, alloc)
    Scan 	from;
    Scan 	newnode;
    char *	(*alloc)();
{
    newnode->scanrelid = from->scanrelid;
    Node_Copy(from, newnode, alloc, scanstate);
    return true;
}

/* ----------------
 *	CopyRelDescUsing is a function used by CopyScanTempFields.
 *
 *	Note: when this function changes, make sure to change the function
 *	sizeofTmpRelDesc() in tcop/pfrag.c accordingly.
 * ----------------
 */
Relation
CopyRelDescUsing(reldesc, alloc)
    Relation	reldesc;
    char *	(*alloc)();
{
    int 	len;
    int 	natts;
    int 	i;
    Relation 	newreldesc;

    natts = 	reldesc->rd_rel->relnatts;
    len = 	sizeof *reldesc + (int)(natts - 1) * sizeof reldesc->rd_att;
    
    newreldesc = (Relation) COPYALLOC(len);
    
    newreldesc->rd_fd = 	reldesc->rd_fd;
    newreldesc->rd_refcnt = 	reldesc->rd_refcnt;
    newreldesc->rd_ismem =	reldesc->rd_ismem;
    newreldesc->rd_am = 	reldesc->rd_am;  /* YYY */
    
    newreldesc->rd_rel = (RelationTupleForm)
	COPYALLOC(sizeof (RuleLock) + sizeof *reldesc->rd_rel);
    *newreldesc->rd_rel = *reldesc->rd_rel;
    
    newreldesc->rd_id = 	reldesc->rd_id;
    
    if (reldesc->lockInfo != NULL) {
	newreldesc->lockInfo = (Pointer)
	    COPYALLOC(sizeof(LockInfoData));
        *(LockInfo)(newreldesc->lockInfo) = *(LockInfo)(reldesc->lockInfo); 
    }

    len = sizeof *reldesc->rd_att.data[0];
    for (i = 0; i < natts; i++) {
        newreldesc->rd_att.data[i] = (AttributeTupleForm)
            COPYALLOC(len + sizeof (RuleLock));

        bcopy((char *)reldesc->rd_att.data[i],
	      (char *)newreldesc->rd_att.data[i],
	      len);
        bzero((char *)(newreldesc->rd_att.data[i] + 1), sizeof (RuleLock));
        newreldesc->rd_att.data[i]->attrelid =
	    reldesc->rd_att.data[i]->attrelid;
    }
    
    return newreldesc;
}

/* ----------------
 *	copy a list of reldescs
 * ----------------
 */
List
copyRelDescsUsing(relDescs, alloc)
    List	relDescs;
    char *	(*alloc)();
{
    List newlist;

    if (lispNullp(relDescs))
	return LispNil;
    
    newlist = (List) COPYALLOC(classSize(LispValue));
    CopyNodeFields(relDescs, newlist, alloc);
    newlist->val.car = 	(LispValue) CopyRelDescUsing(CAR(relDescs), alloc);
    newlist->cdr = 	copyRelDescsUsing(CDR(relDescs), alloc);
    return newlist;
}

    
/* ----------------
 *	CopyScanTempFields
 *
 *	This function copies the fields of the ScanTemps node.  It is used by
 *	all the copy functions for classes which inherit from Scan.
 * ----------------
 */
bool CopyScanTempFields(from, newnode, alloc)
    ScanTemps 	from;
    ScanTemps 	newnode;
    char *	(*alloc)();
{
    newnode->temprelDescs = copyRelDescsUsing(from->temprelDescs, alloc);
    Node_Copy(from, newnode, alloc, scantempState);
    return true;
}
    
/* ----------------
 *	_copyScan
 * ----------------
 */
bool
_copyScan(from, to, alloc)
    Scan	from;
    Scan	*to;
    char *	(*alloc)();
{
    Scan	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Scan);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyScanFields(from, newnode, alloc);

    (*to) = newnode;
    return true;
}
    
/* ----------------
 *	_copyScanTemp
 * ----------------
 */
bool
_copyScanTemps(from, to, alloc)
    ScanTemps	from;
    ScanTemps	*to;
    char *	(*alloc)();
{
    ScanTemps	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(ScanTemps);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyScanTempFields(from, newnode, alloc);

    (*to) = newnode;
    return true;
}
    
/* ----------------
 *	_copySeqScan
 * ----------------
 */
bool
_copySeqScan(from, to, alloc)
    SeqScan	from;
    SeqScan	*to;
    char *	(*alloc)();
{
    SeqScan	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(SeqScan);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyScanFields(from, newnode, alloc);

    (*to) = newnode;
    return true;
}
 
/* ----------------
 *	_copyIndexScan
 * ----------------
 */
bool
_copyIndexScan(from, to, alloc)
    IndexScan	from;
    IndexScan	*to;
    char *	(*alloc)();
{
    IndexScan	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(IndexScan);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyScanFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node 
     * ----------------
     */
    Node_Copy(from, newnode, alloc, indxid);
    Node_Copy(from, newnode, alloc, indxqual);
    Node_Copy(from, newnode, alloc, indxstate);
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *      -copyJoinRuleInfo
 * ----------------
 */
bool
_copyJoinRuleInfo(from, to, alloc)
    JoinRuleInfo        from;
    JoinRuleInfo        *to;
    char *              (*alloc)();
{
    JoinRuleInfo newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(JoinRuleInfo);

    newnode->jri_operator = 	from->jri_operator;
    newnode->jri_inattrno = 	from->jri_inattrno;
    newnode->jri_outattrno = 	from->jri_outattrno;
    newnode->jri_lock = 	from->jri_lock;
    newnode->jri_ruleid = 	from->jri_ruleid;
    newnode->jri_stubid = 	from->jri_stubid;
    newnode->jri_stub = 	from->jri_stub;

    (*to) = newnode;
    return(true);
}
    
/* ----------------
 *	CopyJoinFields
 *
 *	This function copies the fields of the Join node.  It is used by
 *	all the copy functions for classes which inherit from Join.
 * ----------------
 */
bool CopyJoinFields(from, newnode, alloc)
    Join 	from;
    Join 	newnode;
    char *	(*alloc)();
{
    Node_Copy(from, newnode, alloc, ruleinfo);
    return true;
}
    

/* ----------------
 *	_copyJoin
 * ----------------
 */
bool
_copyJoin(from, to, alloc)
    Join	from;
    Join	*to;
    char *	(*alloc)();
{
    Join	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Join);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyJoinFields(from, newnode, alloc);

    (*to) = newnode;
    return true;
}
    

/* ----------------
 *	_copyNestLoop
 * ----------------
 */
bool
_copyNestLoop(from, to, alloc)
    NestLoop	from;
    NestLoop	*to;
    char *	(*alloc)();
{
    NestLoop	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(NestLoop);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyJoinFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, nlstate);
    
    (*to) = newnode;
    return true;
}


/* ----------------
 *	_copyMergeJoin
 * ----------------
 */
bool
_copyMergeJoin(from, to, alloc)
    MergeJoin	from;
    MergeJoin	*to;
    char *	(*alloc)();
{
    MergeJoin	newnode;
    LispValue	x, y;
    List	newlist;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(MergeJoin);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyJoinFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, mergeclauses);
    
    newnode->mergesortop = from->mergesortop;
    newlist = LispNil;
    foreach (x, from->mergerightorder) {
	newlist = nappend1(newlist, CAR(x));
    }
    
    newnode->mergerightorder = newlist;
    newlist = LispNil;
    foreach (x, from->mergeleftorder) {
	newlist = nappend1(newlist, CAR(x));
    }
    
    newnode->mergeleftorder = newlist;
    Node_Copy(from, newnode, alloc, mergestate);
    
    (*to) = newnode;
    return true;
}
    

/* ----------------
 *	_copyHashJoin
 * ----------------
 */
bool
_copyHashJoin(from, to, alloc)
    HashJoin	from;
    HashJoin	*to;
    char *	(*alloc)();
{
    HashJoin	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(HashJoin);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyJoinFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, hashclauses);
    
    newnode->hashjoinop = 		from->hashjoinop;
    
    Node_Copy(from, newnode, alloc, hashjoinstate);
    
    newnode->hashjointable = 		from->hashjointable;
    newnode->hashjointablekey = 	from->hashjointablekey;
    newnode->hashjointablesize = 	from->hashjointablesize;
    newnode->hashdone = 		from->hashdone;
    
    (*to) = newnode;
    return true;
}
    

/* ----------------
 *	CopyTempFields
 *
 *	This function copies the fields of the Temp node.  It is used by
 *	all the copy functions for classes which inherit from Temp.
 * ----------------
 */
bool CopyTempFields(from, newnode, alloc)
    Temp 	from;
    Temp 	newnode;
    char *	(*alloc)();
{
    newnode->tempid = 	from->tempid;
    newnode->keycount = from->keycount;
    return true;
}
    

/* ----------------
 *	_copyTemp
 * ----------------
 */
bool
_copyTemp(from, to, alloc)
    Temp	from;
    Temp	*to;
    char *	(*alloc)();
{
    Temp	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Temp);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyTempFields(from, newnode, alloc);

    (*to) = newnode;
    return true;
}
 
/* ----------------
 *	_copyMaterial
 * ----------------
 */
bool
_copyMaterial(from, to, alloc)
    Material	from;
    Material	*to;
    char *	(*alloc)();
{
    Material	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Material);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyTempFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, matstate);
    
    (*to) = newnode;
    return true;
}
    
 
/* ----------------
 *	_copySort
 * ----------------
 */
bool
_copySort(from, to, alloc)
    Sort	from;
    Sort	*to;
    char *	(*alloc)();
{
    Sort	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Sort);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyTempFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, sortstate);
    
    (*to) = newnode;
    return true;
}
/* ---------------
 *  _copyAgg
 * --------------
 */
bool
_copyAgg(from, to, alloc)
    Agg	  from;
    Agg   *to;
    char * (*alloc)();
{
    Agg newnode;
    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Agg);

    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyTempFields(from, newnode, alloc);

    Node_Copy(from, newnode, alloc, aggstate);

    (*to) = newnode;
    return true;
}

    
/* ----------------
 *	_copyUnique
 * ----------------
 */
bool
_copyUnique(from, to, alloc)
    Unique	from;
    Unique	*to;
    char *	(*alloc)();
{
    Unique	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Unique);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);
    CopyTempFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, uniquestate);
    
    (*to) = newnode;
    return true;
}
    
 
/* ----------------
 *	_copyHash
 * ----------------
 */
bool
_copyHash(from, to, alloc)
    Hash	from;
    Hash	*to;
    char *	(*alloc)();
{
    Hash	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Hash);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, hashkey);
    Node_Copy(from, newnode, alloc, hashstate);
    
    newnode->hashtable = 	from->hashtable;
    newnode->hashtablekey = 	from->hashtablekey;
    newnode->hashtablesize = 	from->hashtablesize;
    
    (*to) = newnode;
    return true;
}

/* ****************************************************************
 *		       primnodes.h copy functions
 * ****************************************************************
 */

/* ----------------
 *	_copyResdom
 * ----------------
 */
bool
_copyResdom(from, to, alloc)
    Resdom	from;
    Resdom	*to;
    char *	(*alloc)();
{
    Resdom	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Resdom);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     *
     * XXX reskeyop is USED as an int within the print functions
     *	    so that's what the copy function uses, but its
     *	    declared as an OperatorTupleForm in primnodes.h
     *      One or the other is wrong, and I'm assuming
     *	    it should be an int.  -cim 5/1/90
     * ----------------
     */
    newnode->resno   = 	from->resno;
    newnode->restype = 	from->restype;
    newnode->rescomplex = from->rescomplex;
    newnode->reslen  = 	from->reslen;

    if (from->resname != NULL) {
	newnode->resname = (Name) COPYALLOC(NAMEDATALEN);
	(void) namecpy(newnode->resname, from->resname);
    } else
	newnode->resname = (Name) NULL;
    
    newnode->reskey  = 	from->reskey;
    newnode->reskeyop = from->reskeyop; /* USED AS AN INT (see above) */
    newnode->resjunk = 	from->resjunk;
    
    (*to) = newnode;
    return true;
}
    
bool
_copyFjoin(from, to, alloc)
    Fjoin	from;
    Fjoin	*to;
    char *	(*alloc)();
{
    Fjoin	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Fjoin);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    newnode->fj_initialized = from->fj_initialized;
    newnode->fj_nNodes      = from->fj_nNodes;

    Node_Copy(from, newnode, alloc, fj_innerNode);

    newnode->fj_results     = (DatumPtr)
	COPYALLOC((from->fj_nNodes)*sizeof(Datum));

    newnode->fj_alwaysDone  = (BoolPtr)
	COPYALLOC((from->fj_nNodes)*sizeof(bool));

    bcopy(newnode->fj_results,
	  from->fj_results,
	  (from->fj_nNodes)*sizeof(Datum));

    bcopy(newnode->fj_alwaysDone,
	  from->fj_alwaysDone,
	  (from->fj_nNodes)*sizeof(bool));
    
    (*to) = newnode;
    return true;
}
/* ----------------
 *	CopyExprFields
 *
 *	This function copies the fields of the Expr node.  It is used by
 *	all the copy functions for classes which inherit from Expr.
 * ----------------
 */
bool
CopyExprFields(from, newnode, alloc)
    Expr 	from;
    Expr 	newnode;
    char *	(*alloc)();
{
    return true;
}

/* ----------------
 *	_copyExpr
 * ----------------
 */
bool
_copyExpr(from, to, alloc)
    Expr	from;
    Expr	*to;
    char *	(*alloc)();
{
    Expr	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Expr);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    (*to) = newnode;
    return true;
}

bool
_copyIter(from, to, alloc)
    Iter	from;
    Iter	*to;
    char *	(*alloc)();
{
    Iter	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Iter);
    
    CopyNodeFields(from, newnode, alloc);

    Node_Copy(from, newnode, alloc, iterexpr);

    (*to) = newnode;
    return true;
}

bool
_copyStream(from, to, alloc)
    Stream	from;
    Stream	*to;
    char *	(*alloc)();
{
    Stream	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Stream);
    
    CopyNodeFields(from, newnode, alloc);

    newnode->pathptr = from->pathptr;
    newnode->cinfo = from->cinfo;
    newnode->clausetype = from->clausetype;
    newnode->groupup = from->groupup;
    newnode->groupcost = from->groupcost;
    newnode->groupsel = from->groupsel;
    newnode->upstream = (StreamPtr)LispNil;  /* only copy nodes downwards! */
    Node_Copy(from, newnode, alloc, downstream);
    if (newnode->downstream)
      ((Stream)newnode->downstream)->upstream = (StreamPtr)newnode;
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyVar
 * ----------------
 */
bool
_copyVar(from, to, alloc)
    Var	from;
    Var	*to;
    char *	(*alloc)();
{
    Var	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Var);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->varno = 	 from->varno;
    newnode->varattno =  from->varattno;
    newnode->vartype = 	 from->vartype;
    
    Node_Copy(from, newnode, alloc, varid);    

    /* ----------------
     *	don't copy var's cached slot pointer!
     * ----------------
     */
    newnode->varslot =	NULL;
    
    (*to) = newnode;
    return true;
}

bool
_copyArray(from, to, alloc)
    Array	from;
    Array	*to;
    char *	(*alloc)();

{
    Array	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Array);

    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->arrayelemtype = 	from->arrayelemtype;
    newnode->arrayelemlength = 	from->arrayelemlength;
    newnode->arrayelembyval = 	from->arrayelembyval;
    newnode->arrayndim = 	from->arrayndim;
    newnode->arraylow = 	from->arraylow;
    newnode->arrayhigh = 	from->arrayhigh;
    newnode->arraylen = 	from->arraylen;

    (*to) = newnode;
    return true;
}

bool
_copyArrayRef(from, to, alloc)
    ArrayRef	from;
    ArrayRef	*to;
    char *	(*alloc)();

{
    ArrayRef	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(ArrayRef);

    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->refelemtype = 	from->refelemtype;
    newnode->refattrlength = 	from->refattrlength;
    newnode->refelemlength = 	from->refelemlength;
    newnode->refelembyval = 	from->refelembyval;

    (void) NodeCopy(from->refupperindexpr, &(newnode->refupperindexpr), alloc);
    (void) NodeCopy(from->reflowerindexpr, &(newnode->reflowerindexpr), alloc);
    (void) NodeCopy(from->refexpr, &(newnode->refexpr), alloc);
    (void) NodeCopy(from->refassgnexpr, &(newnode->refassgnexpr), alloc);

    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyOper
 * ----------------
 */
bool
_copyOper(from, to, alloc)
    Oper	from;
    Oper	*to;
    char *	(*alloc)();
{
    Oper	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Oper);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->opno = 	   	from->opno;
    newnode->opid = 	   	from->opid;
    newnode->oprelationlevel = 	from->oprelationlevel;
    newnode->opresulttype =    	from->opresulttype;
    newnode->opsize = 	   	from->opsize;

    /*
     * NOTE: shall we copy the cache structure or just the pointer ?
     * Alternatively we can set 'op_fcache' to NULL, in which
     * case the executor will initialize it when it needs it...
     */
    newnode->op_fcache =   	from->op_fcache;
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyConst
 * ----------------
 */
bool
_copyConst(from, to, alloc)
    Const	from;
    Const	*to;
    char *	(*alloc)();
{
    static ObjectId 	cached_type;
    static bool		cached_typbyval;

    Const	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Const);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->consttype = 	from->consttype;
    newnode->constlen = 	from->constlen;

    /* ----------------
     *	XXX super cheesy hack until parser/planner
     *  puts in the right values here.
     * ----------------
     */
    if (cached_type != from->consttype) {
	HeapTuple	typeTuple;
	TypeTupleForm	typeStruct;
	
	/* ----------------
	 *   get the type tuple corresponding to the paramList->type,
	 *   If this fails, returnValue has been pre-initialized
	 *   to "null" so we just return it.
	 * ----------------
	 */
	typeTuple = SearchSysCacheTuple(TYPOID,
					(char *)
					ObjectIdGetDatum(from->consttype),
					(char *) NULL, (char *) NULL,
					(char *) NULL);

	/* ----------------
	 *   get the type length and by-value from the type tuple and
	 *   save the information in our one element cache.
	 * ----------------
	 */
	Assert(PointerIsValid(typeTuple));
	
	typeStruct = (TypeTupleForm) GETSTRUCT(typeTuple);
	cached_typbyval = (typeStruct)->typbyval ? true : false ;
	cached_type = from->consttype;
    }
    
    from->constbyval = cached_typbyval;
    
    if (!from->constisnull) {
	/* ----------------
	 *	copying the Datum in a const node is a bit trickier
	 *  because it might be a pointer and it might also be of
	 *  variable length...
	 * ----------------
	 */
	if (from->constbyval == true) {
	    /* ----------------
	     *  passed by value so just copy the datum.
	     * ----------------
	     */
	    newnode->constvalue = 	from->constvalue;
	} else {
	    /* ----------------
	     *  not passed by value. datum contains a pointer.
	     * ----------------
	     */
	    if (from->constlen != -1) {
		/* ----------------
		 *	fixed length structure
		 * ----------------
		 */
		newnode->constvalue = PointerGetDatum(COPYALLOC(from->constlen));
		bcopy(from->constvalue, newnode->constvalue, from->constlen);
	    } else {
		/* ----------------
		 *	variable length structure.  here the length is stored
		 *  in the first int pointed to by the constval.
		 * ----------------
		 */
		int length;
		length = *((int *) from->constvalue);
		newnode->constvalue = PointerGetDatum(COPYALLOC(length));
		bcopy(from->constvalue, newnode->constvalue, length);
	    }
	}
    }
    else {
	newnode->constvalue = from->constvalue;
    }
    newnode->constisnull = 	from->constisnull;
    newnode->constbyval = 	from->constbyval;
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyParam
 * ----------------
 */
bool
_copyParam(from, to, alloc)
    Param	from;
    Param	*to;
    char *	(*alloc)();
{
    Param	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Param);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->paramkind = from->paramkind;
    newnode->paramid = from->paramid;

    if (from->paramname != NULL) {
	newnode->paramname = (Name) COPYALLOC(NAMEDATALEN);
	(void) namecpy(newnode->paramname, from->paramname);
    } else
	newnode->paramname = (Name) NULL;
    
    newnode->paramtype = from->paramtype;
    Node_Copy(from, newnode, alloc, param_tlist);
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyFunc
 * ----------------
 */
bool
_copyFunc(from, to, alloc)
    Func	from;
    Func	*to;
    char *	(*alloc)();
{
    Func	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Func);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->funcid = 		from->funcid;
    newnode->functype = 	from->functype;
    newnode->funcisindex = 	from->funcisindex;
    newnode->funcsize = 	from->funcsize;
    newnode->func_fcache = 	from->func_fcache;
    Node_Copy(from, newnode, alloc, func_tlist);
    Node_Copy(from, newnode, alloc, func_planlist);
    
    (*to) = newnode;
    return true;
}

/* ****************************************************************
 *			relation.h copy functions
 * ****************************************************************
 */

/* ----------------
 *	_copyRel
 * ----------------
 */
/*
** when you change this, also make sure to fix up xfunc_copyRel in 
** planner/path/xfunc.c accordingly!!!
**         -- JMH, 8/2/93
*/
bool
_copyRel(from, to, alloc)
    Rel	from;
    Rel	*to;
    char *	(*alloc)();
{
    Rel	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Rel);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, relids);
    
    newnode->indexed = from->indexed;
    newnode->pages =   from->pages;
    newnode->tuples =  from->tuples;
    newnode->size =    from->size;
    newnode->width =   from->width;
    newnode->indproc = from->indproc;

    Node_Copy(from, newnode, alloc, targetlist);
    Node_Copy(from, newnode, alloc, pathlist);
    Node_Copy(from, newnode, alloc, unorderedpath);
    Node_Copy(from, newnode, alloc, cheapestpath);
    newnode->pruneable = from->pruneable;
    Node_Copy(from, newnode, alloc, classlist);
    Node_Copy(from, newnode, alloc, indexkeys);
    Node_Copy(from, newnode, alloc, ordering);
    Node_Copy(from, newnode, alloc, clauseinfo);
    Node_Copy(from, newnode, alloc, joininfo);
    Node_Copy(from, newnode, alloc, innerjoin);
    Node_Copy(from, newnode, alloc, superrels);
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copySortKey
 * ----------------
 */
bool
_copySortKey(from, to, alloc)
    SortKey	from;
    SortKey	*to;
    char *	(*alloc)();
{
    SortKey	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(SortKey);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, varkeys);
    Node_Copy(from, newnode, alloc, sortkeys);
    Node_Copy(from, newnode, alloc, relid);
    Node_Copy(from, newnode, alloc, sortorder);

    (*to) = newnode;
    return true;
}

/* ----------------
 *	CopyPathFields
 *
 *	This function copies the fields of the Path node.  It is used by
 *	all the copy functions for classes which inherit from Path.
 * ----------------
 */
bool CopyPathFields(from, newnode, alloc)
    Path 	from;
    Path 	newnode;
    char *	(*alloc)();
{
    newnode->pathtype =  	from->pathtype;
    /* Modify the next line, since it causes the copying to cycle
       (i.e. the parent points right back here! 
       -- JMH, 7/7/92.
       Old version:
       Node_Copy(from, newnode, alloc, parent);
       */
    newnode->parent =           from->parent;
    
    newnode->path_cost = 	from->path_cost;
    
    Node_Copy(from, newnode, alloc, p_ordering);
    Node_Copy(from, newnode, alloc, keys);
    Node_Copy(from, newnode, alloc, pathsortkey);
    
    newnode->outerjoincost = 	from->outerjoincost;
    
    Node_Copy(from, newnode, alloc, joinid);
    Node_Copy(from, newnode, alloc, locclauseinfo);
    return true;
}

/* ----------------
 *	_copyPath
 * ----------------
 */
bool
_copyPath(from, to, alloc)
    Path	from;
    Path	*to;
    char *	(*alloc)();
{
    Path	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Path);
    
    /* ----------------
     *	copy the node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPathFields(from, newnode, alloc);
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyIndexPath
 * ----------------
 */
bool
_copyIndexPath(from, to, alloc)
    IndexPath	from;
    IndexPath	*to;
    char *	(*alloc)();
{
    IndexPath	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(IndexPath);
    
    /* ----------------
     *	copy the node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPathFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, indexid);
    Node_Copy(from, newnode, alloc, indexqual);

    (*to) = newnode;
    return true;
}

/* ----------------
 *	CopyJoinPathFields
 *
 *	This function copies the fields of the JoinPath node.  It is used by
 *	all the copy functions for classes which inherit from JoinPath.
 * ----------------
 */
bool CopyJoinPathFields(from, newnode, alloc)
    JoinPath 	from;
    JoinPath 	newnode;
    char *	(*alloc)();
{
    Node_Copy(from, newnode, alloc, pathclauseinfo);
    Node_Copy(from, newnode, alloc, outerjoinpath);
    Node_Copy(from, newnode, alloc, innerjoinpath);
    
    return true;
}

/* ----------------
 *	_copyJoinPath
 * ----------------
 */
bool
_copyJoinPath(from, to, alloc)
    JoinPath	from;
    JoinPath	*to;
    char *	(*alloc)();
{
    JoinPath	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(JoinPath);
    
    /* ----------------
     *	copy the node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPathFields(from, newnode, alloc);
    CopyJoinPathFields(from, newnode, alloc);
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyMergePath
 * ----------------
 */
bool
_copyMergePath(from, to, alloc)
    MergePath	from;
    MergePath	*to;
    char *	(*alloc)();
{
    MergePath	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(MergePath);
    
    /* ----------------
     *	copy the node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPathFields(from, newnode, alloc);
    CopyJoinPathFields(from, newnode, alloc);

    /* ----------------
     *	copy the remainder of the node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, path_mergeclauses);
    Node_Copy(from, newnode, alloc, outersortkeys);
    Node_Copy(from, newnode, alloc, innersortkeys);
	
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyHashPath
 * ----------------
 */
bool
_copyHashPath(from, to, alloc)
    HashPath	from;
    HashPath	*to;
    char *	(*alloc)();
{
    HashPath	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(HashPath);
    
    /* ----------------
     *	copy the node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPathFields(from, newnode, alloc);
    CopyJoinPathFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, path_hashclauses);
    Node_Copy(from, newnode, alloc, outerhashkeys);
    Node_Copy(from, newnode, alloc, innerhashkeys);
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyOrderKey
 * ----------------
 */
bool
_copyOrderKey(from, to, alloc)
    OrderKey	from;
    OrderKey	*to;
    char *	(*alloc)();
{
    OrderKey	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(OrderKey);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->attribute_number = 	from->attribute_number;
    newnode->array_index = 		from->array_index;
    
    (*to) = newnode;
    return true;
}
    

/* ----------------
 *	_copyJoinKey
 * ----------------
 */
bool
_copyJoinKey(from, to, alloc)
    JoinKey	from;
    JoinKey	*to;
    char *	(*alloc)();
{
    JoinKey	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(JoinKey);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, outer);
    Node_Copy(from, newnode, alloc, inner);
    
    (*to) = newnode;
    return true;
}
   
/* ----------------
 *	_copyMergeOrder
 * ----------------
 */
bool
_copyMergeOrder(from, to, alloc)
    MergeOrder	from;
    MergeOrder	*to;
    char *	(*alloc)();
{
    MergeOrder	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(MergeOrder);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->join_operator = 	from->join_operator;
    newnode->left_operator = 	from->left_operator;
    newnode->right_operator = 	from->right_operator;
    newnode->left_type = 	from->left_type;
    newnode->right_type = 	from->right_type;
    
    (*to) = newnode;
    return true;
}
    
/* ----------------
 *	_copyCInfo
 * ----------------
 */
bool
_copyCInfo(from, to, alloc)
    CInfo	from;
    CInfo	*to;
    char *	(*alloc)();
{
    CInfo	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(CInfo);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, clause);
    
    newnode->selectivity = 	from->selectivity;
    newnode->notclause = 	from->notclause;
    
    Node_Copy(from, newnode, alloc, indexids);
    Node_Copy(from, newnode, alloc, mergesortorder);
    newnode->hashjoinoperator = from->hashjoinoperator;
    Node_Copy(from, newnode, alloc, cinfojoinid);
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	CopyJoinMethodFields
 *
 *	This function copies the fields of the JoinMethod node.  It is used by
 *	all the copy functions for classes which inherit from JoinMethod.
 * ----------------
 */
bool CopyJoinMethodFields(from, newnode, alloc)
    JoinMethod 	from;
    JoinMethod 	newnode;
    char *	(*alloc)();
{
    Node_Copy(from, newnode, alloc, jmkeys);
    Node_Copy(from, newnode, alloc, clauses);
    return true;
}
    
/* ----------------
 *	_copyJoinMethod
 * ----------------
 */
bool
_copyJoinMethod(from, to, alloc)
    JoinMethod	from;
    JoinMethod	*to;
    char *	(*alloc)();
{
    JoinMethod	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(JoinMethod);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyJoinMethodFields(from, newnode, alloc);

    (*to) = newnode;
    return true;
}
    
/* ----------------
 *	_copyHInfo
 * ----------------
 */
bool
_copyHInfo(from, to, alloc)
    HInfo	from;
    HInfo	*to;
    char *	(*alloc)();
{
    HInfo	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(HInfo);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyJoinMethodFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->hashop = from->hashop;
    
    (*to) = newnode;
    return true;
}
    
/* ----------------
 *	_copyMInfo
 * ----------------
 */
bool
_copyMInfo(from, to, alloc)
    MInfo	from;
    MInfo	*to;
    char *	(*alloc)();
{
    MInfo	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(MInfo);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyJoinMethodFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, m_ordering);
    
    (*to) = newnode;
    return true;
}
    
/* ----------------
 *	_copyJInfo
 * ----------------
 */
bool
_copyJInfo(from, to, alloc)
    JInfo	from;
    JInfo	*to;
    char *	(*alloc)();
{
    JInfo	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(JInfo);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, otherrels);
    Node_Copy(from, newnode, alloc, jinfoclauseinfo);
    
    newnode->mergesortable = from->mergesortable;
    newnode->hashjoinable =  from->hashjoinable;
    newnode->inactive =      from->inactive;
    
    (*to) = newnode;
    return true;
}

/* ****************
 *	      mnodes.h routines have no copy functions
 * ****************
 */

/* ****************************************************************
 *		    pg_lisp.h copy functions
 * ****************************************************************
 */

/* ----------------
 *	_copyLispValue
 * ----------------
 */
bool
_copyLispValue(from, to, alloc)
    LispValue	from;
    LispValue	*to;
    char *	(*alloc)();
{
    LispValue	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(LispValue);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    elog(NOTICE, "_copyLispValue: LispValue - assuming LispList");
    Node_Copy(from, newnode, alloc, val.car);
    Node_Copy(from, newnode, alloc, cdr);

    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyLispSymbol
 * ----------------
 */
bool
_copyLispSymbol(from, to, alloc)
    LispValue	from;
    LispValue	*to;
    char *	(*alloc)();
{
    LispValue	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(LispValue);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->val.name = from->val.name;
    newnode->cdr = LispNil;
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyLispStr
 * ----------------
 */
bool
_copyLispStr(from, to, alloc)
    LispValue	from;
    LispValue	*to;
    char *	(*alloc)();
{
    LispValue	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(LispValue);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    if (from->val.name != NULL)
	newnode->val.name = (char *)
	    strncpy((char *)COPYALLOC(NAMEDATALEN), from->val.name,
		NAMEDATALEN);
    else
	newnode->val.name = NULL;
    
    newnode->cdr = LispNil;
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyLispInt
 * ----------------
 */
bool
_copyLispInt(from, to, alloc)
    LispValue	from;
    LispValue	*to;
    char *	(*alloc)();
{
    LispValue	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(LispValue);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->val.fixnum = from->val.fixnum;
    newnode->cdr = LispNil;
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyLispFloat
 * ----------------
 */
bool
_copyLispFloat(from, to, alloc)
    LispValue	from;
    LispValue	*to;
    char *	(*alloc)();
{
    LispValue	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(LispValue);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    newnode->val.flonum = from->val.flonum;
    newnode->cdr = LispNil;
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyLispVector
 * ----------------
 */
bool
_copyLispVector(from, to, alloc)
    LispValue	from;
    LispValue	*to;
    char *	(*alloc)();
{
    LispValue	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(LispValue);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    if (from->val.veci == NULL)
	newnode->val.veci = NULL;
    else {
	/* ----------------
	 *  XXX am unsure about meaning of "size" field of vectori
	 *  structure: is it the size of the data array or the size
	 *  of the whole structure.  The code below will work in
	 *  either case -- the worst that will happen is we'll waste
	 *  a few bytes. -cim 4/30/90
	 * ----------------
	 */
	newnode->val.veci = (struct vectori *)
	    COPYALLOC(sizeof(struct vectori) + from->val.veci->size);
	newnode->val.veci->size = from->val.veci->size;
	bcopy(from->val.veci->data,
	      newnode->val.veci->data,
	      from->val.veci->size);
    } 
    newnode->cdr = LispNil;
    
    (*to) = newnode;
    return true;
}

/* ----------------
 *	_copyLispList
 * ----------------
 */
bool
_copyLispList(from, to, alloc)
    LispValue	from;
    LispValue	*to;
    char *	(*alloc)();
{
    LispValue	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(LispValue);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, val.car);
    Node_Copy(from, newnode, alloc, cdr);
    
    (*to) = newnode;
    return true;
}
@


1.45
log
@Fixes to make sure we don't expect NameData variables to be NULL terminated
and that we don't write mroe than NAMEDATALEN chars into them
@
text
@d22 1
a22 1
 *	$Header: /usr/local/devel/postgres.test/src/backend/lib/RCS/copyfuncs.c,v 1.44 1993/08/04 00:02:02 joey Exp marc $
d31 1
d1177 4
a1180 4
    if (from->resname != NULL)
	newnode->resname = (Name)
	    strncpy((char *) COPYALLOC(NAMEDATALEN), from->resname, NAMEDATALEN);
    else
d1533 4
a1536 4
					from->consttype,
					NULL,
					NULL,
					NULL);
d1630 4
a1633 5
    if (from->paramname != NULL)
	newnode->paramname = (Name)
	    strncpy((char *)COPYALLOC(NAMEDATALEN), from->paramname, 
		NAMEDATALEN);
    else
@


1.44
log
@added a comment
@
text
@d22 1
a22 1
 *	$Header: /private/joey/src/backend/lib/RCS/copyfuncs.c,v 1.43 1993/04/14 01:04:39 sunita Exp $
d1178 1
a1178 1
	    strcpy((char *) COPYALLOC(strlen(from->resname)+1), from->resname);
d1631 2
a1632 2
	    strcpy((char *) COPYALLOC(strlen(from->paramname)+1),
		   from->paramname);
d2388 2
a2389 2
	    strcpy((char *) COPYALLOC(strlen(from->val.name)+1),
		   from->val.name);
@


1.43
log
@included copy functions for array nodes
@
text
@d22 1
a22 1
 *	$Header: /private/src/postgres/src/backend/lib/RCS/copyfuncs.c,v 1.43 1993/04/14 01:01:04 sunita Exp $
d1691 5
@


1.42
log
@removed references to utils/fmgr.h and parser/parse.h
@
text
@d22 1
a22 1
 *	$Header: /home2/aoki/postgres/src/backend/lib/RCS/copyfuncs.c,v 1.41 1992/11/23 22:44:13 joey Exp aoki $
d1392 1
d1430 2
a1431 1
    (void) NodeCopy(from->refindexpr, &(newnode->refindexpr), alloc);
d1433 1
@


1.41
log
@added _copyStream, and fixed _copyRel to copy the new pruneable flag
@
text
@d22 1
a22 1
 *	$Header: /home1/joey/pg/src/lib/C/RCS/copyfuncs.c,v 1.40 1992/07/26 17:10:05 mer Exp $
d36 1
a36 1
#include "utils/fmgr.h"
@


1.40
log
@process new field (refattrlength) of ArrayRef nodes.
@
text
@d22 1
a22 1
 *	$Header: /private/mer/pg/src/lib/C/RCS/copyfuncs.c,v 1.39 1992/07/23 21:38:24 mer Exp mer $
d1292 30
d1723 1
@


1.39
log
@bad assignment (used == instead of =)
@
text
@d22 1
a22 1
 *	$Header: /private/mer/pg/src/lib/C/RCS/copyfuncs.c,v 1.38 1992/07/14 18:35:54 joey Exp mer $
d1395 1
@


1.38
log
@copy indproc field in Rels
@
text
@d22 1
a22 1
 *	$Header: /users/joey/pg/src/lib/C/RCS/copyfuncs.c,v 1.37 1992/07/08 20:36:14 joey Exp joey $
d2452 1
a2452 1
	newnode->val.veci == NULL;
@


1.37
log
@Fix for resdom->rescomplex, func->func_planlist
@
text
@d22 1
a22 1
 *	$Header: /private/joey/pg/src/lib/C/RCS/copyfuncs.c,v 1.36 1992/07/08 04:54:19 joey Exp joey $
d1686 1
@


1.36
log
@_copyPath no longer copies the parent node.  Also fixed _copyCInfo
to treat the hashjoinoperator as copied by value.
@
text
@d22 1
a22 1
 *	$Header: /private/joey/pg/src/lib/C/RCS/copyfuncs.c,v 1.35 1992/07/06 22:21:58 mao Exp joey $
d1173 1
d1642 1
@


1.35
log
@ArrayRef nodes now allow arbitrary int4 expressions as array indices,
not just integer constants
@
text
@d22 1
a22 1
 *	$Header: /private/mao/postgres/src/lib/C/RCS/copyfuncs.c,v 1.34 1992/07/04 04:03:36 mao Exp mao $
d1749 7
a1756 2
    Node_Copy(from, newnode, alloc, parent);
    
d1766 1
a1766 1
	
d2086 1
a2086 1
    Node_Copy(from, newnode, alloc, hashjoinoperator);
@


1.34
log
@fixes for arrays, array refs, and nested dots
@
text
@d22 1
a22 1
 *	$Header: /private/mao/postgres/src/lib/C/RCS/copyfuncs.c,v 1.33 1992/07/01 02:34:33 joey Exp mao $
a1395 1
    newnode->refindex = 	from->refindex;
d1397 1
@


1.33
log
@bring up to date for new fields in Param
@
text
@d22 1
a22 1
 *	$Header: /private/joey/pg/src/lib/C/RCS/copyfuncs.c,v 1.32 1992/06/28 15:31:06 mer Exp joey $
d51 2
a1321 2
    Node_Copy(from, newnode, alloc, vardotfields);
    Node_Copy(from, newnode, alloc, vararraylist);
d1364 35
@


1.32
log
@add functions for Iter and Fjoin nodes, also copy the Func tlists
@
text
@d22 1
a22 1
 *	$Header: /private/mer/pg/src/lib/C/RCS/copyfuncs.c,v 1.31 1992/06/23 15:49:51 mer Exp mer $
d1567 1
@


1.31
log
@_copyFunc() didn't copy *all* of the func node fields (bad)
@
text
@d22 1
a22 1
 *	$Header: /usr/local/dev/postgres/mastertree/newconf/RCS/copyfuncs.c,v 1.30 1991/11/15 16:18:16 hong Exp $
d1187 40
d1270 19
d1604 1
@


1.30
log
@for prototyping
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.29 91/11/14 15:03:35 jolly Exp Locker: hong $
d1544 1
@


1.29
log
@cleaned up for function prototyping
@
text
@d22 1
a22 1
 *	$Header: lib/C/RCS/copyfuncs.c,v 1.28 91/11/10 20:47:53 clarsen Exp Locker: jolly $
d1659 1
a1659 1
    Node_Copy(from, newnode, alloc, sortpath);
@


1.28
log
@prototypes
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.27 91/08/15 17:56:42 caetta Exp Locker: clarsen $
d171 1
a171 2
#ifndef PALLOC_DEBUG    
    extern Pointer palloc();
d173 1
a173 2
#else    
    extern Pointer palloc_debug();
d175 2
a176 2
#endif PALLOC_DEBUG    
    
@


1.27
log
@normal stuff for aggs...
@
text
@d22 1
a22 1
 *	$Header: lib/C/RCS/copyfuncs.c,v 1.26 91/08/14 11:17:49 glass Exp Locker: caetta $
d39 1
@


1.26
log
@fixed bug I created in _copyConst
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.25 91/08/14 10:50:02 caetta Exp Locker: glass $
d1038 1
a1038 1
/*bool
a1057 2
-commented out for adam...
*/
@


1.25
log
@CopyAgg commented out so Adam could lock this...
@
text
@d22 1
a22 1
 *	$Header: lib/C/RCS/copyfuncs.c,v 1.24 91/08/09 00:44:44 glass Exp Locker: caetta $
d1457 1
a1457 1
		length = *((int *) newnode->constvalue);
@


1.24
log
@fixed horrendous bug in _copyConst
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.23 91/08/01 11:05:23 mer Exp Locker: glass $
d1034 27
@


1.23
log
@cleanup lmgr.h include
@
text
@d22 1
a22 1
 *	$Header: lib/C/RCS/copyfuncs.c,v 1.22 91/07/24 16:09:51 hong Exp Locker: mer $
d1398 1
a1398 7
    /* ----------------
     *	copying the Datum in a const node is a bit trickier
     *  because it might be a pointer and it might also be of
     *  variable length...
     * ----------------
     */
    if (from->constbyval == true) {
d1400 3
a1402 1
	 *  passed by value so just copy the datum.
d1405 1
a1405 7
	newnode->constvalue = 	from->constvalue;
    } else {
	/* ----------------
	 *  not passed by value. datum contains a pointer.
	 * ----------------
	 */
	if (from->constlen != -1) {
d1407 1
a1407 1
	     *	fixed length structure
d1410 1
a1410 2
	    newnode->constvalue = PointerGetDatum(COPYALLOC(from->constlen));
	    bcopy(from->constvalue, newnode->constvalue, from->constlen);
d1413 1
a1413 2
	     *	variable length structure.  here the length is stored
	     *  in the first int pointed to by the constval.
d1416 18
a1433 4
	    int length;
	    length = *((int *) newnode->constvalue);
	    newnode->constvalue = PointerGetDatum(COPYALLOC(length));
	    bcopy(from->constvalue, newnode->constvalue, length);
d1435 3
@


1.22
log
@added some comments indicating some cross file dependency
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.21 91/07/17 23:51:10 hong Exp Locker: hong $
d38 1
a38 1
#include "utils/lmgr.h"
@


1.21
log
@got rid of obsolete function CopyReturnStateUsing()
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.20 91/06/18 23:27:49 cimarron Exp Locker: hong $
d503 3
@


1.20
log
@reorganized executor to use tuple table properly for nested dot stuff
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.19 91/04/24 23:23:55 hong Exp Locker: cimarron $
a2103 22
}

/* ****************
 *	     execnodes.h routines have no copy functions
 * ****************
 */
ReturnState
CopyReturnStateUsing(retstate, alloc)
    ReturnState     retstate;
    char *  (*alloc)();
{
    ReturnState newnode;

    COPY_NEW_TYPE(ReturnState);
    
    /* ----------------
     *  copy node superclass fields
     * ----------------
     */
    CopyNodeFields(retstate, newnode, alloc);
    
    return newnode;
@


1.19
log
@fixed a bug in the copy function of the MergeJoin
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.18 91/03/28 22:23:55 kemnitz Exp Locker: hong $
a35 2
#include "executor/recursion.h"
#include "planner/recurplanner.h"
d341 5
a345 5
    newnode->cost = from->cost;
    newnode->plan_size = from->plan_size;
    newnode->plan_width = from->plan_width;
    newnode->fragment =	from->fragment;
    newnode->parallel = from->parallel;
a405 6
    /* ----------------
     *	copy remainder of node 
     * ----------------
     */
    Node_Copy(from, newnode, alloc, exstate);
    
a483 74
 *	_copyParallel
 * ----------------
 */
bool
_copyParallel(from, to, alloc)
    Parallel	from;
    Parallel	*to;
    char *	(*alloc)();
{
    Parallel	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Parallel);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node 
     * ----------------
     */
    Node_Copy(from, newnode, alloc, parstate);
        
    (*to) = newnode;
    return true;
}

    
/* ----------------
 *	_copyRecursive
 * ----------------
 */
bool
_copyRecursive(from, to, alloc)
    Recursive	from;
    Recursive	*to;
    char *	(*alloc)();
{
    Recursive	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(Recursive);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyPlanFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node 
     * ----------------
     */
    newnode->recurMethod = from->recurMethod;
    Node_Copy(from, newnode, alloc, recurCommand);
    Node_Copy(from, newnode, alloc, recurInitPlans);
    Node_Copy(from, newnode, alloc, recurLoopPlans);
    Node_Copy(from, newnode, alloc, recurCleanupPlans);
    Node_Copy(from, newnode, alloc, recurCheckpoints);
    Node_Copy(from, newnode, alloc, recurResultRelationName);
    Node_Copy(from, newnode, alloc, recurState);
    
    (*to) = newnode;
    return true;
}

/* ----------------
d490 2
a491 1
bool CopyScanFields(from, newnode, alloc)
a504 1

d507 2
a508 2
Relation	reldesc;
char *		(*alloc)();
d510 4
a513 4
    int len;
    int natts;
    int i;
    Relation newreldesc;
d515 3
a517 2
    natts = reldesc->rd_rel->relnatts;
    len = sizeof *reldesc + (int)(natts - 1) * sizeof reldesc->rd_att;
d519 6
a524 4
    newreldesc->rd_fd = reldesc->rd_fd;
    newreldesc->rd_refcnt = reldesc->rd_refcnt;
    newreldesc->rd_ismem = reldesc->rd_ismem;
    newreldesc->rd_am = reldesc->rd_am;  /* YYY */
d528 3
a530 1
    newreldesc->rd_id = reldesc->rd_id;
d532 2
a533 1
	newreldesc->lockInfo = (Pointer) COPYALLOC(sizeof(LockInfoData));
d535 1
a535 1
      }
d546 2
a547 1
        newreldesc->rd_att.data[i]->attrelid=reldesc->rd_att.data[i]->attrelid;
d549 1
d553 4
d559 2
a560 2
List	relDescs;
char *	(*alloc)();
d566 1
d569 2
a570 2
    newlist->val.car = (LispValue)CopyRelDescUsing(CAR(relDescs), alloc);
    newlist->cdr = copyRelDescsUsing(CDR(relDescs), alloc);
d728 7
a734 7
    newnode->jri_operator = from->jri_operator;
    newnode->jri_inattrno = from->jri_inattrno;
    newnode->jri_outattrno = from->jri_outattrno;
    newnode->jri_lock = from->jri_lock;
    newnode->jri_ruleid = from->jri_ruleid;
    newnode->jri_stubid = from->jri_stubid;
    newnode->jri_stub = from->jri_stub;
d852 1
d857 2
a858 1
      }
d863 2
a864 1
      }
d902 3
a904 1
    newnode->hashjoinop = from->hashjoinop;
a905 4
    newnode->hashjointable = from->hashjointable;
    newnode->hashjointablekey = from->hashjointablekey;
    newnode->hashjointablesize = from->hashjointablesize;
    newnode->hashdone = from->hashdone;
d907 5
d929 1
a929 1
    newnode->tempid = from->tempid;
a1095 3
    newnode->hashtable = from->hashtable;
    newnode->hashtablekey = from->hashtablekey;
    newnode->hashtablesize = from->hashtablesize;
d1097 4
d1142 3
a1144 3
    newnode->resno   = from->resno;
    newnode->restype = from->restype;
    newnode->reslen  = from->reslen;
d1152 1
a1152 1
    newnode->reskey  = from->reskey;
d1154 1
a1154 1
    newnode->resjunk = from->resjunk;
d1167 2
a1168 1
bool CopyExprFields(from, newnode, alloc)
d1235 1
a1235 3
    
	Node_Copy(from, newnode, alloc, vararraylist);
    
d1238 5
a1242 1
/*     newnode->varelemtype = from->varelemtype; */
d1261 4
d1268 10
a1277 6
	newnode->arrayelemtype = from->arrayelemtype;
	newnode->arrayelemlength = from->arrayelemlength;
	newnode->arrayelembyval = from->arrayelembyval;
	newnode->arraylow = from->arraylow;
	newnode->arrayhigh = from->arrayhigh;
	newnode->arraylen = from->arraylen;
d1310 5
a1314 5
    newnode->opno = 	   from->opno;
    newnode->opid = 	   from->opid;
    newnode->oprelationlevel = from->oprelationlevel;
    newnode->opresulttype =    from->opresulttype;
    newnode->opsize = 	   from->opsize;
d1321 1
a1321 1
    newnode->op_fcache =   from->op_fcache;
d1508 1
a1508 1
    newnode->funcid = 	from->funcid;
d1619 2
a1620 1
    newnode->pathtype =  from->pathtype;
d1622 3
a1624 1
    newnode->path_cost = from->path_cost;
d1628 3
a1630 1
    newnode->outerjoincost = from->outerjoincost;
d1912 2
a1913 2
    newnode->left_type = 		from->left_type;
    newnode->right_type = 		from->right_type;
d1946 1
d1949 1
d2097 1
d2112 2
a2113 2
ReturnState     retstate;
char *  (*alloc)();
d2118 1
d2124 1
@


1.18
log
@Copy functions added for array nodes.
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.17 91/03/27 12:33:53 choi Exp Locker: kemnitz $
d901 2
d922 10
a931 2
    Node_Copy(from, newnode, alloc, mergerightorder);
    Node_Copy(from, newnode, alloc, mergeleftorder);
@


1.17
log
@varnodes no longer has vararrayindex or varelemtype
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.16 91/02/24 00:47:19 cimarron Exp Locker: choi $
d1287 1
a1287 1
    newnode->vararraylist = from->vararraylist;
d1297 26
@


1.16
log
@added palloc_debug tracing facility
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.15 91/02/05 15:32:05 sp Exp Locker: cimarron $
d1287 1
a1287 1
    newnode->vararrayindex = from->vararrayindex;
d1291 1
a1291 1
    newnode->varelemtype = from->varelemtype;
@


1.15
log
@The 'printFunc' have been replaced by the 'outFunc's.
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.14 90/12/27 19:15:56 sp Exp Locker: sp $
a31 6
/* ----------------
 *	this list of header files taken from other node file headers.
 * ----------------
 */
#include <stdio.h>

d171 2
d174 5
d180 1
a180 1
    if (NodeCopy(from, &copy, palloc) == true)
d246 6
d264 1
a264 1
    newnode = (c) (*alloc)(classSize(c)); \
d270 1
a270 1
    newnode = (c) (*alloc)(classSize(c)); \
d599 1
a599 1
    newreldesc = (Relation)(*alloc)(len);
d605 1
a605 1
                         (*alloc)(sizeof (RuleLock) + sizeof *reldesc->rd_rel);
d609 1
a609 1
	newreldesc->lockInfo = (Pointer)(*alloc)(sizeof(LockInfoData));
d616 1
a616 1
            (*alloc)(len + sizeof (RuleLock));
d636 1
a636 1
    newlist = (List)(*alloc)(classSize(LispValue));
d1200 1
a1200 1
	    strcpy((char *) (*alloc)(strlen(from->resname)+1), from->resname);
d1432 1
a1432 1
	    newnode->constvalue = PointerGetDatum((*alloc)(from->constlen));
d1442 1
a1442 1
	    newnode->constvalue = PointerGetDatum((*alloc)(length));
d1485 1
a1485 1
	    strcpy((char *) (*alloc)(strlen(from->paramname)+1),
d2238 1
a2238 1
	    strcpy((char *) (*alloc)(strlen(from->val.name)+1),
d2353 1
a2353 1
	    (*alloc)(sizeof(struct vectori) + from->val.veci->size);
@


1.14
log
@Oper nodes now have a new field (opid) where the oid of the regproc
is stored (that used to be stored in 'opno' overriding the pg_operator
oid).
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.13 90/11/10 12:24:54 hong Exp Locker: sp $
d79 1
a79 1
     newnode->printFunc = lispObject->printFunc;
d286 1
a286 1
    newnode->printFunc = from->printFunc;
@


1.13
log
@added fields to HasJoin and Hash nodes
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.12 90/11/07 11:59:41 hong Exp Locker: hong $
d1319 1
d1323 7
@


1.12
log
@in sync with modifications to HashJoin nodes
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.11 90/10/10 18:48:50 hong Exp Locker: hong $
d954 2
d1143 2
@


1.11
log
@added a new field to Resdom node
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.10 90/10/02 17:34:02 mao Exp Locker: hong $
d953 2
a1132 1
    CopyTempFields(from, newnode, alloc);
d1138 1
d1140 1
@


1.10
log
@fix type clash in return statement
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.9 90/09/25 16:21:56 kemnitz Exp Locker: mao $
d1192 1
@


1.9
log
@Updating from revision 1.8 to revision 1.17
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.17 90/09/14 11:44:12 hong Exp $
d240 3
a242 1
 *	to simplify all the _copy functions.
d262 6
d2101 1
a2101 1
    COPY_NEW(ReturnState);
@


1.8
log
@made changes to simplify header include files
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.7 90/06/02 13:10:50 cimarron Exp $
d32 5
a36 10
#include "c.h"
#include "datum.h"
#include "pg_lisp.h"
#include "nodes.h"
#include "primnodes.h"
#include "plannodes.h"
#include "execnodes.h"
#include "relation.h"
#include "recursion.h"
#include "recurplanner.h"
d38 1
a38 6
#include "fmgr.h"
#include "heapam.h"
#include "log.h"
#include "oid.h"
#include "syscache.h"
#include "htup.h"
d40 18
d328 5
a332 2
    newnode->cost = 	from->cost;
    newnode->fragment = 	from->fragment;
a565 1
    
d568 79
d674 11
d686 16
d765 28
d806 1
d2086 15
@


1.7
log
@fixed case of trying to use strlen on NULL strings in a few
of the _copy functions.
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.6 90/06/01 14:58:21 cimarron Exp $
d48 1
a48 1
#include "tuple.h"
@


1.6
log
@added temporary sys cache lookup to _copyConst until parser/planner
puts the right thing in constbyval.
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.5 90/05/31 22:30:54 cimarron Exp $
d1030 6
a1035 2
    newnode->resname = (Name)
	strcpy((char *) (*alloc)(strlen(from->resname)+1), from->resname);
d1306 7
a1313 3
    newnode->paramname = (Name)
	strcpy((char *) (*alloc)(strlen(from->paramname)+1), from->paramname);
    
d2045 7
a2051 2
    newnode->val.name = (char *)
	strcpy((char *) (*alloc)(strlen(from->val.name)+1), from->val.name);
@


1.5
log
@made changes to support constbyval.
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.4 90/05/31 10:23:12 cimarron Exp $
d1172 3
d1195 35
@


1.4
log
@corrected bug in arguments to strcpy() in a few places.
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.3 90/05/25 13:10:16 cimarron Exp $
d1191 37
a1227 1
    newnode->constvalue = 	from->constvalue;
d1229 1
@


1.3
log
@added made changes to support node copy functions
-- added varelemtype
,
@
text
@d22 1
a22 1
 *	$Header: RCS/copyfuncs.c,v 1.2 90/05/25 13:01:27 cimarron Exp $
d283 2
a284 2
    Plan	from;
    Plan	*to;
d287 1
a287 1
    Plan	newnode;
d291 1
a291 1
    COPY_NEW(Plan);
d1031 1
a1031 1
	strcpy(from->resname, (char *) (*alloc)(strlen(from->resname)));
d1229 1
a1229 1
	strcpy(from->paramname, (char *) (*alloc)(strlen(from->paramname)));
d1963 1
a1963 1
	strcpy(from->val.name, (char *) (*alloc)(strlen(from->val.name)));
@


1.2
log
@new node stuff to support node copy functions.
@
text
@d22 1
a22 1
 *	$Header$
d1119 2
@


1.1
log
@Initial revision
@
text
@a1196 34
 *	_copyArrayRef
 * ----------------
 */
bool
_copyArrayRef(from, to, alloc)
    ArrayRef	from;
    ArrayRef	*to;
    char *	(*alloc)();
{
    ArrayRef	newnode;

    COPY_CHECKARGS();
    COPY_CHECKNULL();
    COPY_NEW(ArrayRef);
    
    /* ----------------
     *	copy node superclass fields
     * ----------------
     */
    CopyNodeFields(from, newnode, alloc);
    CopyExprFields(from, newnode, alloc);

    /* ----------------
     *	copy remainder of node
     * ----------------
     */
    Node_Copy(from, newnode, alloc, arraydesc);
    Node_Copy(from, newnode, alloc, dimension_expression);
    
    (*to) = newnode;
    return true;
}

/* ----------------
@