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Commitce3afcc

Browse files
committed
More optimizer cleanups.
1 parent18fbe41 commitce3afcc

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9 files changed

+49
-39
lines changed

9 files changed

+49
-39
lines changed

‎src/backend/nodes/copyfuncs.c‎

Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.60 1999/02/0401:46:53 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.61 1999/02/0403:19:06 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -1397,13 +1397,13 @@ _copyHashInfo(HashInfo *from)
13971397
}
13981398

13991399
/* ----------------
1400-
*_copyMInfo
1400+
*_copyMergeInfo
14011401
* ----------------
14021402
*/
1403-
staticMInfo*
1404-
_copyMInfo(MInfo*from)
1403+
staticMergeInfo*
1404+
_copyMergeInfo(MergeInfo*from)
14051405
{
1406-
MInfo*newnode=makeNode(MInfo);
1406+
MergeInfo*newnode=makeNode(MergeInfo);
14071407

14081408
/* ----------------
14091409
*copy remainder of node
@@ -1800,8 +1800,8 @@ copyObject(void *from)
18001800
caseT_HashInfo:
18011801
retval=_copyHashInfo(from);
18021802
break;
1803-
caseT_MInfo:
1804-
retval=_copyMInfo(from);
1803+
caseT_MergeInfo:
1804+
retval=_copyMergeInfo(from);
18051805
break;
18061806
caseT_JoinInfo:
18071807
retval=_copyJoinInfo(from);

‎src/backend/nodes/readfuncs.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.47 1999/02/0401:46:54 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.48 1999/02/0403:19:06 momjian Exp $
1111
*
1212
* NOTES
1313
* Most of the read functions for plan nodes are tested. (In fact, they
@@ -1914,7 +1914,7 @@ _readJoinMethod()
19141914
staticHashInfo*
19151915
_readHashInfo()
19161916
{
1917-
HashInfo*local_node;
1917+
HashInfo*local_node;
19181918
char*token;
19191919
intlength;
19201920

‎src/backend/optimizer/README‎

Lines changed: 17 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,6 @@
1+
Optimizer Functions
2+
-------------------
3+
14
These directories take the Query structure returned by the parser, and
25
generate a plan used by the executor. The /plan directory generates the
36
plan, the /path generates all possible ways to join the tables, and
@@ -93,9 +96,18 @@ planner()
9396

9497
Optimizer Structures
9598
--------------------
96-
RelOptInfo- info about every relation
97-
RestrictInfo- info about restrictions
98-
JoinInfo- info about join combinations
99-
Path- info about every way to access a relation(sequential, index)
100-
PathOrder - info about every ordering (sort, merge of relations)
99+
100+
RelOptInfo- Every relation
101+
102+
RestrictInfo- restriction clauses
103+
JoinInfo- join combinations
104+
105+
Path- every way to access a relation(sequential, index)
106+
IndexPath- index scans
107+
108+
JoinPath- joins
109+
MergePath- merge joins
110+
HashPath- hash joins
111+
112+
PathOrder- every ordering type (sort, merge of relations)
101113

‎src/backend/optimizer/path/hashutils.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/hashutils.c,v 1.10 1999/02/0401:46:57 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/hashutils.c,v 1.11 1999/02/0403:19:08 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -54,7 +54,7 @@ group_clauses_by_hashop(List *restrictinfo_list,
5454
*/
5555
if (hashjoinop)
5656
{
57-
HashInfo*xhashinfo= (HashInfo*)NULL;
57+
HashInfo*xhashinfo= (HashInfo*)NULL;
5858
Expr*clause=restrictinfo->clause;
5959
Var*leftop=get_leftop(clause);
6060
Var*rightop=get_rightop(clause);

‎src/backend/optimizer/path/joinpath.c‎

Lines changed: 6 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/joinpath.c,v 1.13 1999/02/0401:46:57 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/joinpath.c,v 1.14 1999/02/0403:19:08 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -162,7 +162,6 @@ find_all_join_paths(Query *root, List *joinrels)
162162
temp_list=innerrel->pathlist;
163163
foreach(path,temp_list)
164164
{
165-
166165
/*
167166
* XXX
168167
*
@@ -235,7 +234,7 @@ sort_inner_and_outer(RelOptInfo * joinrel,
235234
List*mergeinfo_list)
236235
{
237236
List*ms_list=NIL;
238-
MInfo*xmergeinfo= (MInfo*)NULL;
237+
MergeInfo*xmergeinfo= (MergeInfo*)NULL;
239238
MergePath*temp_node= (MergePath*)NULL;
240239
List*i;
241240
List*outerkeys=NIL;
@@ -244,7 +243,7 @@ sort_inner_and_outer(RelOptInfo * joinrel,
244243

245244
foreach(i,mergeinfo_list)
246245
{
247-
xmergeinfo= (MInfo*)lfirst(i);
246+
xmergeinfo= (MergeInfo*)lfirst(i);
248247

249248
outerkeys=extract_path_keys(xmergeinfo->jmethod.jmkeys,
250249
outerrel->targetlist,
@@ -325,7 +324,7 @@ match_unsorted_outer(RelOptInfo * joinrel,
325324
List*clauses=NIL;
326325
List*matchedJoinKeys=NIL;
327326
List*matchedJoinClauses=NIL;
328-
MInfo*xmergeinfo= (MInfo*)NULL;
327+
MergeInfo*xmergeinfo= (MergeInfo*)NULL;
329328

330329
outerpath= (Path*)lfirst(i);
331330

@@ -465,7 +464,7 @@ match_unsorted_inner(RelOptInfo * joinrel,
465464

466465
foreach(i,innerpath_list)
467466
{
468-
MInfo*xmergeinfo= (MInfo*)NULL;
467+
MergeInfo*xmergeinfo= (MergeInfo*)NULL;
469468
List*clauses=NIL;
470469
List*matchedJoinKeys=NIL;
471470
List*matchedJoinClauses=NIL;
@@ -579,7 +578,7 @@ hash_inner_and_outer(RelOptInfo * joinrel,
579578
RelOptInfo*innerrel,
580579
List*hashinfo_list)
581580
{
582-
HashInfo*xhashinfo= (HashInfo*)NULL;
581+
HashInfo*xhashinfo= (HashInfo*)NULL;
583582
List*hjoin_list=NIL;
584583
HashPath*temp_node= (HashPath*)NULL;
585584
List*i=NIL;

‎src/backend/optimizer/path/mergeutils.c‎

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/mergeutils.c,v 1.11 1999/02/03 21:16:27 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/mergeutils.c,v 1.12 1999/02/04 03:19:09 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -53,7 +53,7 @@ group_clauses_by_order(List *restrictinfo_list,
5353
* if one does not yet exist for this merge ordering.
5454
*/
5555
PathOrderp_ordering;
56-
MInfo*xmergeinfo;
56+
MergeInfo*xmergeinfo;
5757
Expr*clause=restrictinfo->clause;
5858
Var*leftop=get_leftop(clause);
5959
Var*rightop=get_rightop(clause);
@@ -77,7 +77,7 @@ group_clauses_by_order(List *restrictinfo_list,
7777

7878
if (xmergeinfo==NULL)
7979
{
80-
xmergeinfo=makeNode(MInfo);
80+
xmergeinfo=makeNode(MergeInfo);
8181

8282
xmergeinfo->m_ordering=merge_ordering;
8383
mergeinfo_list=lcons(xmergeinfo,
@@ -102,15 +102,15 @@ group_clauses_by_order(List *restrictinfo_list,
102102
* Returns the node if it exists.
103103
*
104104
*/
105-
MInfo*
105+
MergeInfo*
106106
match_order_mergeinfo(PathOrder*ordering,List*mergeinfo_list)
107107
{
108108
MergeOrder*xmergeorder;
109109
List*xmergeinfo=NIL;
110110

111111
foreach(xmergeinfo,mergeinfo_list)
112112
{
113-
MInfo*mergeinfo= (MInfo*)lfirst(xmergeinfo);
113+
MergeInfo*mergeinfo= (MergeInfo*)lfirst(xmergeinfo);
114114

115115
xmergeorder=mergeinfo->m_ordering;
116116

@@ -123,5 +123,5 @@ match_order_mergeinfo(PathOrder *ordering, List *mergeinfo_list)
123123
returnmergeinfo;
124124
}
125125
}
126-
return (MInfo*)NIL;
126+
return (MergeInfo*)NIL;
127127
}

‎src/include/nodes/nodes.h‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
*
77
* Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Id: nodes.h,v 1.37 1999/02/0401:47:00 momjian Exp $
9+
* $Id: nodes.h,v 1.38 1999/02/0403:19:10 momjian Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -82,7 +82,7 @@ typedef enum NodeTag
8282
T_RestrictInfo,
8383
T_JoinMethod,
8484
T_HashInfo,
85-
T_MInfo,
85+
T_MergeInfo,
8686
T_JoinInfo,
8787
T_Iter,
8888
T_Stream,

‎src/include/nodes/relation.h‎

Lines changed: 5 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
*
77
* Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Id: relation.h,v 1.13 1999/02/0401:47:02 momjian Exp $
9+
* $Id: relation.h,v 1.14 1999/02/0403:19:10 momjian Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -47,7 +47,7 @@ typedef List *Relid;
4747
*leaves the tuples unordered)
4848
*cheapestpath -least expensive Path (regardless of final order)
4949
*pruneable - flag to let the planner know whether it can prune the plan
50-
*space of this RelOptInfo or not. -- JMH, 11/11/92
50+
*space of this RelOptInfo or not.
5151
*
5252
* * If the relation is a (secondary) index it will have the following
5353
*three fields:
@@ -157,8 +157,7 @@ typedef struct IndexPath
157157
Pathpath;
158158
List*indexid;
159159
List*indexqual;
160-
int*indexkeys;/* to transform heap attnos into index
161-
* ones */
160+
int*indexkeys;/* to transform heap attnos into index ones */
162161
}IndexPath;
163162

164163
typedefstructJoinPath
@@ -236,11 +235,11 @@ typedef struct HashInfo
236235
Oidhashop;
237236
}HashInfo;
238237

239-
typedefstructMInfo
238+
typedefstructMergeInfo
240239
{
241240
JoinMethodjmethod;
242241
MergeOrder*m_ordering;
243-
}MInfo;
242+
}MergeInfo;
244243

245244
typedefstructJoinInfo
246245
{

‎src/include/optimizer/paths.h‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
* Copyright (c) 1994, Regents of the University of California
99
*
10-
* $Id: paths.h,v 1.11 1999/02/03 20:15:53 momjian Exp $
10+
* $Id: paths.h,v 1.12 1999/02/04 03:19:11 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -70,7 +70,7 @@ extern List *new_join_pathkeys(List *outer_pathkeys,
7070
*/
7171
externList*group_clauses_by_order(List*restrictinfo_list,
7272
intinner_relid);
73-
externMInfo*match_order_mergeinfo(PathOrder*ordering,
73+
externMergeInfo*match_order_mergeinfo(PathOrder*ordering,
7474
List*mergeinfo_list);
7575

7676
/*

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