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Postgres FD Implementation
Commit e46df2ff authored by Bruce Momjian's avatar Bruce Momjian
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OPTIMIZER_DEBUG additions.

parent af5fde74
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Showing with 42 additions and 44 deletions
src/backend/optimizer/README
View file @ e46df2ff
......@@ -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
......
src/backend/optimizer/path/allpaths.c
View file @ e46df2ff
......@@ -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--
......@@ -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
}
......
src/backend/optimizer/plan/initsplan.c
View file @ e46df2ff
......@@ -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));
......
src/backend/optimizer/plan/planmain.c
View file @ e46df2ff
......@@ -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"
......@@ -85,6 +86,10 @@ 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,
......
src/backend/optimizer/util/clauses.c
View file @ e46df2ff
......@@ -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)
......
src/tools/backend/flow.fig
View file @ e46df2ff
......@@ -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
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2 1 0 2 8 7 0 0 -1 0.000 0 0 -1 1 0 2
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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
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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
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3 0 0 2 8 7 0 0 -1 0.000 0 1 0 8
0 0 2.00 150.00 150.00
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......
src/tools/backend/flow.jpg
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src/tools/backend/index.html
View file @ e46df2ff
......@@ -16,23 +16,23 @@ by Bruce Momjian
<IMG src="flow.jpg" usemap="#flowmap" alt="flowchart" border=0>
</CENTER>
<MAP name="flowmap">
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</MAP>
<CENTER><EM>
Click on an item to see more detail or look at the full
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