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Postgres FD Implementation
Commit ad4b27ac authored by Bruce Momjian's avatar Bruce Momjian
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Optimizer cleanup.

parent c0d17c7a
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Showing with 88 additions and 84 deletions
src/backend/optimizer/geqo/geqo_misc.c
View file @ ad4b27ac
......@@ -5,7 +5,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: geqo_misc.c,v 1.15 1999/02/12 06:43:26 momjian Exp $
* $Id: geqo_misc.c,v 1.16 1999/02/12 17:24:47 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -158,7 +158,7 @@ void
geqo_print_path(Query *root, Path *path, int indent)
{
char *ptype = NULL;
NestPath *jp;
JoinPath *jp;
bool join = false;
int i;
......@@ -194,7 +194,7 @@ geqo_print_path(Query *root, Path *path, int indent)
{
int size = path->parent->size;
jp = (NestPath *) path;
jp = (JoinPath *) path;
printf("%s size=%d cost=%f\n", ptype, size, path->path_cost);
switch (nodeTag(path))
{
......@@ -203,7 +203,7 @@ geqo_print_path(Query *root, Path *path, int indent)
for (i = 0; i < indent + 1; i++)
printf("\t");
printf(" clauses=(");
geqo_print_joinclauses(root, ((NestPath *) path)->pathinfo);
geqo_print_joinclauses(root, ((JoinPath *) path)->pathinfo);
printf(")\n");
if (nodeTag(path) == T_MergePath)
......
src/backend/optimizer/geqo/geqo_paths.c
View file @ ad4b27ac
......@@ -5,7 +5,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: geqo_paths.c,v 1.18 1999/02/12 06:43:26 momjian Exp $
* $Id: geqo_paths.c,v 1.19 1999/02/12 17:24:47 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -98,7 +98,7 @@ geqo_prune_rel(RelOptInfo *rel, List *other_rels)
void
geqo_set_cheapest(RelOptInfo *rel)
{
NestPath *cheapest = (NestPath *)set_cheapest(rel, rel->pathlist);
JoinPath *cheapest = (JoinPath *)set_cheapest(rel, rel->pathlist);
if (IsA_JoinPath(cheapest))
rel->size = compute_joinrel_size(cheapest);
......
src/backend/optimizer/path/allpaths.c
View file @ ad4b27ac
......@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.29 1999/02/12 06:43:28 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.30 1999/02/12 17:24:48 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -302,7 +302,7 @@ static void
print_path(Query *root, Path *path, int indent)
{
char *ptype = NULL;
NestPath *jp;
JoinPath *jp;
bool join = false;
int i;
......@@ -338,7 +338,7 @@ print_path(Query *root, Path *path, int indent)
{
int size = path->parent->size;
jp = (NestPath *) path;
jp = (JoinPath *) path;
printf("%s size=%d cost=%f\n", ptype, size, path->path_cost);
switch (nodeTag(path))
{
......@@ -347,7 +347,7 @@ print_path(Query *root, Path *path, int indent)
for (i = 0; i < indent + 1; i++)
printf("\t");
printf(" clauses=(");
print_joinclauses(root, ((NestPath *) path)->pathinfo);
print_joinclauses(root, ((JoinPath *) path)->pathinfo);
printf(")\n");
if (nodeTag(path) == T_MergePath)
......
src/backend/optimizer/path/costsize.c
View file @ ad4b27ac
......@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/costsize.c,v 1.30 1999/02/12 06:43:28 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/costsize.c,v 1.31 1999/02/12 17:24:49 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -435,7 +435,7 @@ compute_attribute_width(TargetEntry *tlistentry)
* Returns a fixnum.
*/
int
compute_joinrel_size(NestPath *joinpath)
compute_joinrel_size(JoinPath *joinpath)
{
Cost temp = 1.0;
int temp1 = 0;
......
src/backend/optimizer/path/joinpath.c
View file @ ad4b27ac
......@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/joinpath.c,v 1.21 1999/02/12 06:43:30 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/joinpath.c,v 1.22 1999/02/12 17:24:49 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -372,6 +372,7 @@ match_unsorted_outer(RelOptInfo *joinrel,
innerrel->pathlist,
INNER);
/* Should we use the mergeinner, or sort the cheapest inner? */
path_is_cheaper_than_sort = (bool) (mergeinnerpath &&
(mergeinnerpath->path_cost <
(cheapest_inner->path_cost +
......
src/backend/optimizer/path/predmig.c
View file @ ad4b27ac
......@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/predmig.c,v 1.16 1999/02/12 06:43:31 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/predmig.c,v 1.17 1999/02/12 17:24:50 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -53,13 +53,13 @@
* (not a join) iff it has
* a non-NULL cinfo field */
static void xfunc_predmig(NestPath pathnode, Stream streamroot,
static void xfunc_predmig(JoinPath pathnode, Stream streamroot,
Stream laststream, bool *progressp);
static bool xfunc_series_llel(Stream stream);
static bool xfunc_llel_chains(Stream root, Stream bottom);
static Stream xfunc_complete_stream(Stream stream);
static bool xfunc_prdmig_pullup(Stream origstream, Stream pullme,
NestPath joinpath);
JoinPath joinpath);
static void xfunc_form_groups(Stream root, Stream bottom);
static void xfunc_free_stream(Stream root);
static Stream xfunc_add_clauses(Stream current);
......@@ -91,8 +91,8 @@ xfunc_do_predmig(Path root)
do
{
progress = false;
Assert(IsA(root, NestPath));
xfunc_predmig((NestPath) root, (Stream) NULL, (Stream) NULL,
Assert(IsA(root, JoinPath));
xfunc_predmig((JoinPath) root, (Stream) NULL, (Stream) NULL,
&progress);
if (changed && progress)
elog(DEBUG, "Needed to do a second round of predmig!\n");
......@@ -111,7 +111,7 @@ xfunc_do_predmig(Path root)
** Destructively modifies the join tree (via predicate pullup).
*/
static void
xfunc_predmig(NestPath pathnode,/* root of the join tree */
xfunc_predmig(JoinPath pathnode,/* root of the join tree */
Stream streamroot,
Stream laststream,/* for recursive calls -- these are the
* root of the stream under construction,
......@@ -161,11 +161,11 @@ xfunc_predmig(NestPath pathnode,/* root of the join tree */
else
{
/* visit left child */
xfunc_predmig((NestPath) get_outerjoinpath(pathnode),
xfunc_predmig((JoinPath) get_outerjoinpath(pathnode),
streamroot, newstream, progressp);
/* visit right child */
xfunc_predmig((NestPath) get_innerjoinpath(pathnode),
xfunc_predmig((JoinPath) get_innerjoinpath(pathnode),
streamroot, newstream, progressp);
}
......@@ -257,7 +257,7 @@ xfunc_llel_chains(Stream root, Stream bottom)
*/
Assert(xfunc_num_relids(pathstream) > xfunc_num_relids(tmpstream));
progress = xfunc_prdmig_pullup(origstream, tmpstream,
(NestPath) get_pathptr(pathstream));
(JoinPath) get_pathptr(pathstream));
}
if (get_downstream(tmpstream))
pathstream = (Stream) xfunc_get_downjoin((Stream) get_downstream(tmpstream));
......@@ -304,14 +304,14 @@ xfunc_complete_stream(Stream stream)
/*
** xfunc_prdmig_pullup
** pullup a clause in a path above joinpath. Since the NestPath tree
** pullup a clause in a path above joinpath. Since the JoinPath tree
** doesn't have upward pointers, it's difficult to deal with. Thus we
** require the original stream, which maintains pointers to all the path
** nodes. We use the original stream to find out what joins are
** above the clause.
*/
static bool
xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath)
xfunc_prdmig_pullup(Stream origstream, Stream pullme, JoinPath joinpath)
{
RestrictInfo restrictinfo = get_cinfo(pullme);
bool progress = false;
......@@ -333,7 +333,7 @@ xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath)
/* pull up this node as far as it should go */
for (upjoin = (Stream) xfunc_get_upjoin(orignode);
upjoin != (Stream) NULL
&& (NestPath) get_pathptr((Stream) xfunc_get_downjoin(upjoin))
&& (JoinPath) get_pathptr((Stream) xfunc_get_downjoin(upjoin))
!= joinpath;
upjoin = (Stream) xfunc_get_upjoin(upjoin))
{
......@@ -342,12 +342,12 @@ xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath)
#endif
/* move clause up in path */
if (get_pathptr((Stream) get_downstream(upjoin))
== (pathPtr) get_outerjoinpath((NestPath) get_pathptr(upjoin)))
== (pathPtr) get_outerjoinpath((JoinPath) get_pathptr(upjoin)))
whichchild = OUTER;
else
whichchild = INNER;
restrictinfo = xfunc_pullup((Path) get_pathptr((Stream) get_downstream(upjoin)),
(NestPath) get_pathptr(upjoin),
(JoinPath) get_pathptr(upjoin),
restrictinfo,
whichchild,
get_clausetype(orignode));
......@@ -366,10 +366,10 @@ xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath)
temp = (Stream) get_downstream(temp))
set_pathptr
(temp, (pathPtr)
get_outerjoinpath((NestPath) get_pathptr(upjoin)));
get_outerjoinpath((JoinPath) get_pathptr(upjoin)));
set_pathptr
(temp,
(pathPtr) get_outerjoinpath((NestPath) get_pathptr(upjoin)));
(pathPtr) get_outerjoinpath((JoinPath) get_pathptr(upjoin)));
}
else
{
......@@ -377,10 +377,10 @@ xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath)
temp = (Stream) get_downstream(temp))
set_pathptr
(temp, (pathPtr)
get_innerjoinpath((NestPath) get_pathptr(upjoin)));
get_innerjoinpath((JoinPath) get_pathptr(upjoin)));
set_pathptr
(temp, (pathPtr)
get_innerjoinpath((NestPath) get_pathptr(upjoin)));
get_innerjoinpath((JoinPath) get_pathptr(upjoin)));
}
progress = true;
}
......@@ -425,14 +425,14 @@ xfunc_form_groups(Query *queryInfo, Stream root, Stream bottom)
if (!is_clause(temp))
{
if (get_pathptr((Stream) get_downstream(temp))
== (pathPtr) get_outerjoinpath((NestPath) get_pathptr(temp)))
== (pathPtr) get_outerjoinpath((JoinPath) get_pathptr(temp)))
whichchild = OUTER;
else
whichchild = INNER;
set_groupcost(temp,
xfunc_join_expense((NestPath) get_pathptr(temp),
xfunc_join_expense((JoinPath) get_pathptr(temp),
whichchild));
if (primjoin = xfunc_primary_join((NestPath) get_pathptr(temp)))
if (primjoin = xfunc_primary_join((JoinPath) get_pathptr(temp)))
{
set_groupsel(temp,
compute_clause_selec(queryInfo,
......@@ -529,10 +529,10 @@ xfunc_add_clauses(Stream current)
}
/* and add in the join clauses */
if (IsA(get_pathptr(current), NestPath))
if (IsA(get_pathptr(current), JoinPath))
{
primjoin = xfunc_primary_join((NestPath) get_pathptr(current));
foreach(temp, get_pathrestrictinfo((NestPath) get_pathptr(current)))
primjoin = xfunc_primary_join((JoinPath) get_pathptr(current));
foreach(temp, get_pathrestrictinfo((JoinPath) get_pathptr(current)))
{
if (!equal(get_clause((RestrictInfo) lfirst(temp)), primjoin))
topnode = xfunc_streaminsert((RestrictInfo) lfirst(temp), topnode,
......@@ -615,11 +615,11 @@ xfunc_streaminsert(RestrictInfo restrictinfo,
static int
xfunc_num_relids(Stream node)
{
if (!node || !IsA(get_pathptr(node), NestPath))
if (!node || !IsA(get_pathptr(node), JoinPath))
return 0;
else
return (length
(get_relids(get_parent((NestPath) get_pathptr(node)))));
(get_relids(get_parent((JoinPath) get_pathptr(node)))));
}
/*
......
src/backend/optimizer/path/prune.c
View file @ ad4b27ac
......@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/prune.c,v 1.29 1999/02/12 06:43:32 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/prune.c,v 1.30 1999/02/12 17:24:50 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -92,17 +92,17 @@ rels_set_cheapest(List *rel_list)
{
List *x = NIL;
RelOptInfo *rel = (RelOptInfo *) NULL;
NestPath *cheapest;
JoinPath *cheapest;
foreach(x, rel_list)
{
rel = (RelOptInfo *) lfirst(x);
cheapest = (NestPath *) set_cheapest(rel, rel->pathlist);
cheapest = (JoinPath *) set_cheapest(rel, rel->pathlist);
if (IsA_JoinPath(cheapest))
rel->size = compute_joinrel_size(cheapest);
else
elog(ERROR, "non NestPath called");
elog(ERROR, "non JoinPath called");
}
}
......
src/backend/optimizer/path/xfunc.c
View file @ ad4b27ac
......@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/xfunc.c,v 1.26 1999/02/12 06:43:32 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/xfunc.c,v 1.27 1999/02/12 17:24:50 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -61,7 +61,7 @@ xfunc_trypullup(RelOptInfo rel)
LispValue y; /* list ptr */
RestrictInfo maxcinfo; /* The RestrictInfo to pull up, as
* calculated by xfunc_shouldpull() */
NestPath curpath; /* current path in list */
JoinPath curpath; /* current path in list */
int progress; /* has progress been made this time
* through? */
int clausetype;
......@@ -71,7 +71,7 @@ xfunc_trypullup(RelOptInfo rel)
progress = false; /* no progress yet in this iteration */
foreach(y, get_pathlist(rel))
{
curpath = (NestPath) lfirst(y);
curpath = (JoinPath) lfirst(y);
/*
* * for each operand, attempt to pullup predicates until
......@@ -142,7 +142,7 @@ xfunc_trypullup(RelOptInfo rel)
int
xfunc_shouldpull(Query *queryInfo,
Path childpath,
NestPath parentpath,
JoinPath parentpath,
int whichchild,
RestrictInfo * maxcinfopt) /* Out: pointer to clause
* to pullup */
......@@ -184,8 +184,8 @@ xfunc_shouldpull(Query *queryInfo,
* see if any join clause has even higher rank than the highest *
* local predicate
*/
if (is_join(childpath) && xfunc_num_join_clauses((NestPath) childpath) > 1)
for (tmplist = get_pathrestrictinfo((NestPath) childpath);
if (is_join(childpath) && xfunc_num_join_clauses((JoinPath) childpath) > 1)
for (tmplist = get_pathrestrictinfo((JoinPath) childpath);
tmplist != LispNil;
tmplist = lnext(tmplist))
{
......@@ -263,7 +263,7 @@ xfunc_shouldpull(Query *queryInfo,
RestrictInfo
xfunc_pullup(Query *queryInfo,
Path childpath,
NestPath parentpath,
JoinPath parentpath,
RestrictInfo cinfo, /* clause to pull up */
int whichchild, /* whether child is INNER or OUTER of join */
int clausetype) /* whether clause to pull is join or local */
......@@ -285,9 +285,9 @@ xfunc_pullup(Query *queryInfo,
else
{
set_pathrestrictinfo
((NestPath) newkid,
((JoinPath) newkid,
xfunc_LispRemove((LispValue) cinfo,
(List) get_pathrestrictinfo((NestPath) newkid)));
(List) get_pathrestrictinfo((JoinPath) newkid)));
}
/*
......@@ -390,7 +390,7 @@ LispValue clause;
** Find global expense of a join clause
*/
Cost
xfunc_join_expense(Query *queryInfo, NestPath path, int whichchild)
xfunc_join_expense(Query *queryInfo, JoinPath path, int whichchild)
{
LispValue primjoinclause = xfunc_primary_join(path);
......@@ -854,7 +854,7 @@ xfunc_find_references(LispValue clause)
** min rank pathclause
*/
LispValue
xfunc_primary_join(NestPath pathnode)
xfunc_primary_join(JoinPath pathnode)
{
LispValue joinclauselist = get_pathrestrictinfo(pathnode);
RestrictInfo mincinfo;
......@@ -947,13 +947,13 @@ xfunc_get_path_cost(Query *queryInfo, Path pathnode)
* * Now add in any node-specific expensive function costs. * Again,
* we must ensure that the clauses are sorted by rank.
*/
if (IsA(pathnode, NestPath))
if (IsA(pathnode, JoinPath))
{
if (XfuncMode != XFUNC_OFF)
set_pathrestrictinfo((NestPath) pathnode, lisp_qsort
(get_pathrestrictinfo((NestPath) pathnode),
set_pathrestrictinfo((JoinPath) pathnode, lisp_qsort
(get_pathrestrictinfo((JoinPath) pathnode),
xfunc_cinfo_compare));
for (tmplist = get_pathrestrictinfo((NestPath) pathnode), selec = 1.0;
for (tmplist = get_pathrestrictinfo((JoinPath) pathnode), selec = 1.0;
tmplist != LispNil;
tmplist = lnext(tmplist))
{
......@@ -1006,14 +1006,14 @@ xfunc_get_path_cost(Query *queryInfo, Path pathnode)
** Recalculate the cost of a path node. This includes the basic cost of the
** node, as well as the cost of its expensive functions.
** We need to do this to the parent after pulling a clause from a child into a
** parent. Thus we should only be calling this function on NestPaths.
** parent. Thus we should only be calling this function on JoinPaths.
*/
Cost
xfunc_total_path_cost(NestPath pathnode)
xfunc_total_path_cost(JoinPath pathnode)
{
Cost cost = xfunc_get_path_cost((Path) pathnode);
Assert(IsA(pathnode, NestPath));
Assert(IsA(pathnode, JoinPath));
if (IsA(pathnode, MergePath))
{
MergePath mrgnode = (MergePath) pathnode;
......@@ -1089,7 +1089,7 @@ xfunc_total_path_cost(NestPath pathnode)
*/
Cost
xfunc_expense_per_tuple(NestPath joinnode, int whichchild)
xfunc_expense_per_tuple(JoinPath joinnode, int whichchild)
{
RelOptInfo outerrel = get_parent((Path) get_outerjoinpath(joinnode));
RelOptInfo innerrel = get_parent((Path) get_innerjoinpath(joinnode));
......@@ -1118,7 +1118,7 @@ xfunc_expense_per_tuple(NestPath joinnode, int whichchild)
else
/* nestloop */
{
Assert(IsA(joinnode, NestPath));
Assert(IsA(joinnode, JoinPath));
return _CPU_PAGE_WEIGHT_;
}
}
......@@ -1375,7 +1375,7 @@ xfunc_tuple_width(Relation rd)
** Find the number of join clauses associated with this join path
*/
int
xfunc_num_join_clauses(NestPath path)
xfunc_num_join_clauses(JoinPath path)
{
int num = length(get_pathrestrictinfo(path));
......
src/backend/optimizer/plan/createplan.c
View file @ ad4b27ac
......@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v 1.44 1999/02/12 06:43:33 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v 1.45 1999/02/12 17:24:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -45,7 +45,7 @@
static List *switch_outer(List *clauses);
static Scan *create_scan_node(Path *best_path, List *tlist);
static Join *create_join_node(NestPath *best_path, List *tlist);
static Join *create_join_node(JoinPath *best_path, List *tlist);
static SeqScan *create_seqscan_node(Path *best_path, List *tlist,
List *scan_clauses);
static IndexScan *create_indexscan_node(IndexPath *best_path, List *tlist,
......@@ -117,7 +117,7 @@ create_plan(Path *best_path)
case T_HashJoin:
case T_MergeJoin:
case T_NestLoop:
plan_node = (Plan *) create_join_node((NestPath *) best_path, tlist);
plan_node = (Plan *) create_join_node((JoinPath *) best_path, tlist);
break;
default:
/* do nothing */
......@@ -204,7 +204,7 @@ create_scan_node(Path *best_path, List *tlist)
* Returns the join node.
*/
static Join *
create_join_node(NestPath *best_path, List *tlist)
create_join_node(JoinPath *best_path, List *tlist)
{
Plan *outer_node;
List *outer_tlist;
......
src/include/executor/nodeNestloop.h
View file @ ad4b27ac
......@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: nodeNestloop.h,v 1.7 1998/09/01 04:36:03 momjian Exp $
* $Id: nodeNestloop.h,v 1.8 1999/02/12 17:24:55 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -21,6 +21,7 @@ extern TupleTableSlot *ExecNestLoop(NestLoop *node, Plan *parent);
extern bool ExecInitNestLoop(NestLoop *node, EState *estate, Plan *parent);
extern int ExecCountSlotsNestLoop(NestLoop *node);
extern void ExecEndNestLoop(NestLoop *node);
extern void ExecReScanNestLoop(NestLoop *node, ExprContext *exprCtxt, Plan *parent);
extern void ExecReScanNestLoop(NestLoop *node, ExprContext *exprCtxt,
Plan *parent);
#endif /* NODENESTLOOP_H */
src/include/nodes/relation.h
View file @ ad4b27ac
......@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: relation.h,v 1.21 1999/02/12 06:43:47 momjian Exp $
* $Id: relation.h,v 1.22 1999/02/12 17:24:59 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -168,9 +168,11 @@ typedef struct NestPath
Path *innerjoinpath;
} NestPath;
typedef NestPath JoinPath;
typedef struct MergePath
{
NestPath jpath;
JoinPath jpath;
List *path_mergeclauses;
List *outersortkeys;
List *innersortkeys;
......@@ -178,7 +180,7 @@ typedef struct MergePath
typedef struct HashPath
{
NestPath jpath;
JoinPath jpath;
List *path_hashclauses;
List *outerhashkeys;
List *innerhashkeys;
......@@ -262,7 +264,7 @@ typedef struct Iter
/*
** Stream:
** A stream represents a root-to-leaf path in a plan tree (i.e. a tree of
** NestPaths and Paths). The stream includes pointers to all Path nodes,
** JoinPaths and Paths). The stream includes pointers to all Path nodes,
** as well as to any clauses that reside above Path nodes. This structure
** is used to make Path nodes and clauses look similar, so that Predicate
** Migration can run.
......
src/include/optimizer/cost.h
View file @ ad4b27ac
......@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: cost.h,v 1.15 1999/02/12 06:43:52 momjian Exp $
* $Id: cost.h,v 1.16 1999/02/12 17:25:05 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -45,7 +45,7 @@ extern Cost cost_hashjoin(Cost outercost, Cost innercost, List *outerkeys,
int outerwidth, int innerwidth);
extern int compute_rel_size(RelOptInfo *rel);
extern int compute_rel_width(RelOptInfo *rel);
extern int compute_joinrel_size(NestPath *joinpath);
extern int compute_joinrel_size(JoinPath *joinpath);
extern int page_size(int tuples, int width);
/*
......
src/include/optimizer/xfunc.h
View file @ ad4b27ac
......@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: xfunc.h,v 1.13 1999/02/12 06:43:53 momjian Exp $
* $Id: xfunc.h,v 1.14 1999/02/12 17:25:05 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -50,13 +50,13 @@ extern int XfuncMode; /* defined in tcop/postgres.c */
/* function prototypes from planner/path/xfunc.c */
extern void xfunc_trypullup(RelOptInfo *rel);
extern int xfunc_shouldpull(Path *childpath, NestPath *parentpath,
extern int xfunc_shouldpull(Path *childpath, JoinPath *parentpath,
int whichchild, RestrictInfo * maxcinfopt);
extern RestrictInfo *xfunc_pullup(Path *childpath, NestPath *parentpath, RestrictInfo * cinfo,
extern RestrictInfo *xfunc_pullup(Path *childpath, JoinPath *parentpath, RestrictInfo * cinfo,
int whichchild, int clausetype);
extern Cost xfunc_rank(Expr *clause);
extern Cost xfunc_expense(Query *queryInfo, Expr *clause);
extern Cost xfunc_join_expense(NestPath *path, int whichchild);
extern Cost xfunc_join_expense(JoinPath *path, int whichchild);
extern Cost xfunc_local_expense(Expr *clause);
extern Cost xfunc_func_expense(Expr *node, List *args);
extern int xfunc_width(Expr *clause);
......@@ -65,10 +65,10 @@ extern int xfunc_width(Expr *clause);
/* extern int xfunc_card_unreferenced(Expr *clause, Relid referenced); */
extern int xfunc_card_product(Relid relids);
extern List *xfunc_find_references(List *clause);
extern List *xfunc_primary_join(NestPath *pathnode);
extern List *xfunc_primary_join(JoinPath *pathnode);
extern Cost xfunc_get_path_cost(Path *pathnode);
extern Cost xfunc_total_path_cost(NestPath *pathnode);
extern Cost xfunc_expense_per_tuple(NestPath *joinnode, int whichchild);
extern Cost xfunc_total_path_cost(JoinPath *pathnode);
extern Cost xfunc_expense_per_tuple(JoinPath *joinnode, int whichchild);
extern void xfunc_fixvars(Expr *clause, RelOptInfo *rel, int varno);
extern int xfunc_cinfo_compare(void *arg1, void *arg2);
extern int xfunc_clause_compare(void *arg1, void *arg2);
......@@ -76,7 +76,7 @@ extern void xfunc_disjunct_sort(List *clause_list);
extern int xfunc_disjunct_compare(void *arg1, void *arg2);
extern int xfunc_func_width(RegProcedure funcid, List *args);
extern int xfunc_tuple_width(Relation rd);
extern int xfunc_num_join_clauses(NestPath *path);
extern int xfunc_num_join_clauses(JoinPath *path);
extern List *xfunc_LispRemove(List *foo, List *bar);
extern bool xfunc_copyrel(RelOptInfo *from, RelOptInfo ** to);
......
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