open-dsi
/
postgres
mirror of https://github.com/postgres/postgres
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

OPTIMIZER_DEBUG additions.

Browse Source
pull/50/head
Bruce Momjian 28 years ago
parent af5fde7491
commit e46df2ff6e
8 changed files with 42 additions and 44 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 1
      src/backend/optimizer/README
  2. 7
      src/backend/optimizer/path/allpaths.c
  3. 7
      src/backend/optimizer/plan/initsplan.c
  4. 13
      src/backend/optimizer/plan/planmain.c
  5. 4
      src/backend/optimizer/util/clauses.c
  6. 20
      src/tools/backend/flow.fig
  7. BIN
      src/tools/backend/flow.jpg
  8. 34
      src/tools/backend/index.html

1
src/backend/optimizer/README
Unescape View File

@ -9,6 +9,7 @@ planner()
preprocess target list
preprocess qualifications(WHERE)
--query_planner()
cnfify qualification, so qual are expressions (were AND's) and OR clauses
pull out constants from target list
get a target list that only contains column names, no expressions
if none, then return

7
src/backend/optimizer/path/allpaths.c
Unescape View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.18 1998/08/04 00:42:07 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.19 1998/08/07 05:02:15 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -45,6 +45,7 @@ int32 _use_geqo_rels_ = GEQO_RELS;
static void find_rel_paths(Query *root, List *rels);
static List *find_join_paths(Query *root, List *outer_rels, int levels_needed);
static void debug_print_rel(Query *root, RelOptInfo *rel);
/*
* find-paths--
@ -173,7 +174,7 @@ find_join_paths(Query *root, List *outer_rels, int levels_needed)
{
List *x;
List *new_rels = NIL;
RelOptInfo *rel;
RelOptInfo *rel;
/*******************************************
* genetic query optimizer entry point *
@ -236,7 +237,7 @@ find_join_paths(Query *root, List *outer_rels, int levels_needed)
/* #define OPTIMIZER_DEBUG */
#ifdef OPTIMIZER_DEBUG
printf("levels left: %d\n", levels_left);
printf("levels left: %d\n", levels_needed);
debug_print_rel(root, rel);
#endif
}

7
src/backend/optimizer/plan/initsplan.c
Unescape View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/initsplan.c,v 1.14 1998/08/04 16:44:14 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/initsplan.c,v 1.15 1998/08/07 05:02:17 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -36,8 +36,7 @@
extern int Quiet;
static void add_clause_to_rels(Query *root, List *clause);
static void
add_join_clause_info_to_rels(Query *root, CInfo *clauseinfo,
static void add_join_clause_info_to_rels(Query *root, CInfo *clauseinfo,
List *join_relids);
static void add_vars_to_rels(Query *root, List *vars, List *join_relids);
@ -183,8 +182,6 @@ add_clause_to_rels(Query *root, List *clause)
clauseinfo->mergejoinorder = (MergeOrder *) NULL;
clauseinfo->hashjoinoperator = (Oid) 0;
if (length(relids) == 1)
{
RelOptInfo *rel = get_base_rel(root, lfirsti(relids));

13
src/backend/optimizer/plan/planmain.c
Unescape View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planmain.c,v 1.23 1998/07/18 04:22:37 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planmain.c,v 1.24 1998/08/07 05:02:19 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -18,6 +18,7 @@
#include "nodes/pg_list.h"
#include "nodes/plannodes.h"
#include "nodes/parsenodes.h"
#include "nodes/print.h"
#include "nodes/relation.h"
#include "nodes/makefuncs.h"
@ -85,7 +86,11 @@ query_planner(Query *root,
qual = (List *) SS_process_sublinks((Node *) qual);
qual = cnfify((Expr *) qual, true);
#ifdef OPTIMIZER_DEBUG
printf("After cnfify()\n");
pprint(qual);
#endif
/*
* A command without a target list or qualification is an error,
* except for "delete foo".
@ -250,8 +255,8 @@ subplanner(Query *root,
List *flat_tlist,
List *qual)
{
RelOptInfo *final_relation;
List *final_relation_list;
RelOptInfo *final_relation;
List *final_relation_list;
/*
* Initialize the targetlist and qualification, adding entries to

4
src/backend/optimizer/util/clauses.c
Unescape View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.17 1998/06/15 19:28:47 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.18 1998/08/07 05:02:22 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -350,8 +350,6 @@ pull_constant_clauses(List *quals, List **constantQual)
*
* Returns the list of relids and vars.
*
* XXX take the nreverse's out later
*
*/
void
clause_relids_vars(Node *clause, List **relids, List **vars)

20
src/tools/backend/flow.fig
Unescape View File

@ -7,10 +7,6 @@ Inches
0 0 2.00 150.00 180.00
0 0 2.00 150.00 180.00
7950 10200 7950 10800
2 1 0 1 -1 7 0 0 -1 0.000 0 0 -1 0 0 1
8400 375
2 1 0 1 -1 7 0 0 -1 0.000 0 0 -1 0 0 1
8400 375
2 4 0 1 -1 29 0 0 20 0.000 0 0 7 0 0 5
2775 11400 375 11400 375 10800 2775 10800 2775 11400
2 1 0 2 29 7 0 0 -1 0.000 0 0 -1 1 1 2
@ -73,10 +69,6 @@ Inches
2 1 0 2 20 7 0 0 -1 0.000 0 0 -1 1 0 2
0 0 2.00 150.00 180.00
2550 2175 6450 2775
2 1 1 2 -1 7 0 0 -1 4.000 0 0 -1 1 1 2
0 0 2.00 150.00 180.00
0 0 2.00 150.00 180.00
4815 1908 5250 1350
2 4 0 1 -1 29 0 0 20 0.000 0 0 7 0 0 5
7650 12600 5250 12600 5250 12000 7650 12000 7650 12600
2 1 0 2 29 7 0 0 -1 0.000 0 0 -1 1 1 2
@ -88,16 +80,20 @@ Inches
3750 5775 5250 5775
2 4 0 1 -1 8 0 0 20 0.000 0 0 7 0 0 5
3750 6075 1350 6075 1350 5475 3750 5475 3750 6075
2 1 1 2 -1 7 0 0 -1 3.000 0 0 -1 1 1 2
0 0 2.00 150.00 180.00
0 0 2.00 150.00 180.00
4660 1524 5295 1293
2 1 0 2 8 7 0 0 -1 0.000 0 0 -1 1 0 2
0 0 2.00 150.00 180.00
2550 7275 2550 7875
2 1 0 2 31 7 0 0 -1 0.000 0 0 -1 1 0 2
0 0 2.00 150.00 180.00
2550 3300 2550 4275
2 1 2 2 -1 7 0 0 -1 4.000 0 1 -1 1 1 2
0 0 2.00 80.00 150.00
0 0 2.00 80.00 150.00
4800 1875 5235 1317
2 1 2 2 -1 7 0 0 -1 3.000 0 1 -1 1 1 2
0 0 2.00 80.00 150.00
0 0 2.00 80.00 150.00
4584 1524 5219 1293
3 0 0 2 8 7 0 0 -1 0.000 0 1 0 8
0 0 2.00 150.00 150.00
1350 9375 1050 9375 825 9000 825 4425 1050 4050 1500 3975

BIN
src/tools/backend/flow.jpg
View File

Binary file not shown.
Side by Side Swipe Overlay

Before

Width:  |  Height:  |  Size: 70 KiB

After

Width:  |  Height:  |  Size: 69 KiB

34
src/tools/backend/index.html
Unescape View File

@ -16,23 +16,23 @@ by Bruce Momjian
<IMG src="flow.jpg" usemap="#flowmap" alt="flowchart" border=0>
</CENTER>
<MAP name="flowmap">
<AREA COORDS="80,10,240,50" HREF="backend_dirs.html#main">
<AREA COORDS="80,90,240,130" HREF="backend_dirs.html#postmaster">
<AREA COORDS="340,50,500,90" HREF="backend_dirs.html#libpq">
<AREA COORDS="80,170,240,210" HREF="backend_dirs.html#tcop">
<AREA COORDS="340,170,500,210" HREF="backend_dirs.html#tcop">
<AREA COORDS="80,270,240,310" HREF="backend_dirs.html#parser">
<AREA COORDS="80,350,240,390" HREF="backend_dirs.html#tcop">
<AREA COORDS="80,430,240,470" HREF="backend_dirs.html#optimizer">
<AREA COORDS="80,410,240,550" HREF="backend_dirs.html#optimizer/plan">
<AREA COORDS="80,590,240,630" HREF="backend_dirs.html#executor">
<AREA COORDS="340,350,500,390" HREF="backend_dirs.html#commands">
<AREA COORDS="10,700,170,750" HREF="backend_dirs.html#utils">
<AREA COORDS="220,700,380,740" HREF="backend_dirs.html#catalog">
<AREA COORDS="430,700,600,750" HREF="backend_dirs.html#storage">
<AREA COORDS="110,780,280,830" HREF="backend_dirs.html#access">
<AREA COORDS="340,780,500,830" HREF="backend_dirs.html#nodes">
<AREA COORDS="20,870,180,910" HREF="backend_dirs.html#bootstrap">
<AREA COORDS="70,0,230,40" HREF="backend_dirs.html#main">
<AREA COORDS="70,80,230,120" HREF="backend_dirs.html#postmaster">
<AREA COORDS="330,40,490,80" HREF="backend_dirs.html#libpq">
<AREA COORDS="70,160,230,200" HREF="backend_dirs.html#tcop">
<AREA COORDS="330,160,490,200" HREF="backend_dirs.html#tcop">
<AREA COORDS="70,260,230,300" HREF="backend_dirs.html#parser">
<AREA COORDS="70,340,230,380" HREF="backend_dirs.html#tcop">
<AREA COORDS="70,420,230,460" HREF="backend_dirs.html#optimizer">
<AREA COORDS="70,400,230,540" HREF="backend_dirs.html#optimizer/plan">
<AREA COORDS="70,580,230,620" HREF="backend_dirs.html#executor">
<AREA COORDS="330,340,490,380" HREF="backend_dirs.html#commands">
<AREA COORDS="0,690,160,740" HREF="backend_dirs.html#utils">
<AREA COORDS="210,690,370,730" HREF="backend_dirs.html#catalog">
<AREA COORDS="420,690,590,740" HREF="backend_dirs.html#storage">
<AREA COORDS="100,770,270,820" HREF="backend_dirs.html#access">
<AREA COORDS="330,770,490,820" HREF="backend_dirs.html#nodes">
<AREA COORDS="10,860,170,900" HREF="backend_dirs.html#bootstrap">
</MAP>
<CENTER><EM>
Click on an item to see more detail or look at the full

Write Preview
Loading…
Cancel
Save