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Optimizer rename ClauseInfo -> RestrictInfo. Update optimizer README.

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This commit is contained in:
Bruce Momjian
1999-02-03 20:15:53 +00:00
parent f3a6b38e32
commit 8d9237d485
35 changed files with 450 additions and 455 deletions
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14
src/backend/optimizer/plan/createplan.c
View File

@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v 1.34 1998/12/04 15:34:05 thomas Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v 1.35 1999/02/03 20:15:37 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -31,7 +31,7 @@
#include "utils/palloc.h"
#include "utils/builtins.h"
#include "optimizer/clauseinfo.h"
#include "optimizer/restrictinfo.h"
#include "optimizer/clauses.h"
#include "optimizer/planmain.h"
#include "optimizer/tlist.h"
@@ -170,7 +170,7 @@ create_scan_node(Path *best_path, List *tlist)
* xfunc_trypullup(), we get the relevant clauses from the path
* itself, not its parent relation. --- JMH, 6/15/92
*/
scan_clauses = fix_opids(get_actual_clauses(best_path->locclauseinfo));
scan_clauses = fix_opids(get_actual_clauses(best_path->loc_restrictinfo));
switch (best_path->pathtype)
{
@@ -219,7 +219,7 @@ create_join_node(JoinPath *best_path, List *tlist)
inner_node = create_plan((Path *) best_path->innerjoinpath);
inner_tlist = inner_node->targetlist;
clauses = get_actual_clauses(best_path->pathclauseinfo);
clauses = get_actual_clauses(best_path->pathinfo);
switch (best_path->path.pathtype)
{
@@ -263,11 +263,11 @@ create_join_node(JoinPath *best_path, List *tlist)
* into this path node. Put them in the qpqual of the plan node. * --
* JMH, 6/15/92
*/
if (get_locclauseinfo(best_path) != NIL)
if (get_loc_restrictinfo(best_path) != NIL)
set_qpqual((Plan) retval,
nconc(get_qpqual((Plan) retval),
fix_opids(get_actual_clauses
(get_locclauseinfo(best_path)))));
(get_loc_restrictinfo(best_path)))));
#endif
return retval;
@@ -730,7 +730,7 @@ fix_indxqual_references(Node *clause, Path *index_path)
if (new_subclauses)
{
return (Node *)
make_clause(expr->opType, expr->oper, new_subclauses);
make_clause(expr->opType, expr->oper, new_subclauses);
}
else
return clause;

60
src/backend/optimizer/plan/initsplan.c
View File

@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/initsplan.c,v 1.20 1998/09/01 04:29:50 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/initsplan.c,v 1.21 1999/02/03 20:15:38 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -40,7 +40,7 @@
extern int Quiet;
static void add_clause_to_rels(Query *root, List *clause);
static void add_join_info_to_rels(Query *root, ClauseInfo * clauseinfo,
static void add_join_info_to_rels(Query *root, RestrictInfo * restrictinfo,
List *join_relids);
static void add_vars_to_targetlist(Query *root, List *vars, List *join_relids);
@@ -140,7 +140,7 @@ add_missing_vars_to_tlist(Query *root, List *tlist)
/*
* init-base-rels-qual--
* Initializes ClauseInfo and JoinInfo fields of relation entries for all
* Initializes RestrictInfo and JoinInfo fields of relation entries for all
* relations appearing within clauses. Creates new relation entries if
* necessary, adding them to *query-relation-list*.
*
@@ -158,9 +158,9 @@ init_base_rels_qual(Query *root, List *clauses)
/*
* add-clause-to-rels--
* Add clause information to either the 'ClauseInfo' or 'JoinInfo' field
* Add clause information to either the 'RestrictInfo' or 'JoinInfo' field
* of a relation entry(depending on whether or not the clause is a join)
* by creating a new ClauseInfo node and setting appropriate fields
* by creating a new RestrictInfo node and setting appropriate fields
* within the nodes.
*
* Returns nothing of interest.
@@ -170,19 +170,19 @@ add_clause_to_rels(Query *root, List *clause)
{
List *relids;
List *vars;
ClauseInfo *clauseinfo = makeNode(ClauseInfo);
RestrictInfo *restrictinfo = makeNode(RestrictInfo);
/*
* Retrieve all relids and vars contained within the clause.
*/
clause_get_relids_vars((Node *) clause, &relids, &vars);
clauseinfo->clause = (Expr *) clause;
clauseinfo->notclause = contains_not((Node *) clause);
clauseinfo->selectivity = 0;
clauseinfo->indexids = NIL;
clauseinfo->mergejoinorder = (MergeOrder *) NULL;
clauseinfo->hashjoinoperator = (Oid) 0;
restrictinfo->clause = (Expr *) clause;
restrictinfo->notclause = contains_not((Node *) clause);
restrictinfo->selectivity = 0;
restrictinfo->indexids = NIL;
restrictinfo->mergejoinorder = (MergeOrder *) NULL;
restrictinfo->hashjoinoperator = (Oid) 0;
if (length(relids) == 1)
{
@@ -204,14 +204,14 @@ add_clause_to_rels(Query *root, List *clause)
* XXX If we have a func clause set selectivity to 1/3, really
* need a true selectivity function.
*/
clauseinfo->selectivity = (Cost) 0.3333333;
restrictinfo->selectivity = (Cost) 0.3333333;
}
else
{
clauseinfo->selectivity =
restrictinfo->selectivity =
compute_clause_selec(root, (Node *) clause, NIL);
}
rel->clauseinfo = lcons(clauseinfo, rel->clauseinfo);
rel->restrictinfo = lcons(restrictinfo, rel->restrictinfo);
}
else
{
@@ -228,14 +228,14 @@ add_clause_to_rels(Query *root, List *clause)
* XXX If we have a func clause set selectivity to 1/3, really
* need a true selectivity function.
*/
clauseinfo->selectivity = (Cost) 0.3333333;
restrictinfo->selectivity = (Cost) 0.3333333;
}
else
{
clauseinfo->selectivity =
restrictinfo->selectivity =
compute_clause_selec(root, (Node *) clause, NIL);
}
add_join_info_to_rels(root, clauseinfo, relids);
add_join_info_to_rels(root, restrictinfo, relids);
/* we are going to be doing a join, so add var to targetlist */
add_vars_to_targetlist(root, vars, relids);
}
@@ -243,18 +243,18 @@ add_clause_to_rels(Query *root, List *clause)
/*
* add-join-info-to-rels--
* For every relation participating in a join clause, add 'clauseinfo' to
* For every relation participating in a join clause, add 'restrictinfo' to
* the appropriate joininfo node(creating a new one and adding it to the
* appropriate rel node if necessary).
*
* 'clauseinfo' describes the join clause
* 'restrictinfo' describes the join clause
* 'join-relids' is the list of relations participating in the join clause
*
* Returns nothing.
*
*/
static void
add_join_info_to_rels(Query *root, ClauseInfo * clauseinfo, List *join_relids)
add_join_info_to_rels(Query *root, RestrictInfo * restrictinfo, List *join_relids)
{
List *join_relid;
@@ -272,8 +272,8 @@ add_join_info_to_rels(Query *root, ClauseInfo * clauseinfo, List *join_relids)
joininfo = find_joininfo_node(get_base_rel(root, lfirsti(join_relid)),
other_rels);
joininfo->jinfoclauseinfo =
lcons(copyObject((void *) clauseinfo), joininfo->jinfoclauseinfo);
joininfo->jinfo_restrictinfo =
lcons(copyObject((void *) restrictinfo), joininfo->jinfo_restrictinfo);
}
}
@@ -322,7 +322,7 @@ add_vars_to_targetlist(Query *root, List *vars, List *join_relids)
* init-join-info--
* Set the MergeJoinable or HashJoinable field for every joininfo node
* (within a rel node) and the MergeJoinOrder or HashJoinOp field for
* each clauseinfo node(within a joininfo node) for all relations in a
* each restrictinfo node(within a joininfo node) for all relations in a
* query.
*
* Returns nothing.
@@ -335,7 +335,7 @@ init_join_info(List *rel_list)
*z;
RelOptInfo *rel;
JoinInfo *joininfo;
ClauseInfo *clauseinfo;
RestrictInfo *restrictinfo;
Expr *clause;
foreach(x, rel_list)
@@ -344,10 +344,10 @@ init_join_info(List *rel_list)
foreach(y, rel->joininfo)
{
joininfo = (JoinInfo *) lfirst(y);
foreach(z, joininfo->jinfoclauseinfo)
foreach(z, joininfo->jinfo_restrictinfo)
{
clauseinfo = (ClauseInfo *) lfirst(z);
clause = clauseinfo->clause;
restrictinfo = (RestrictInfo *) lfirst(z);
clause = restrictinfo->clause;
if (is_joinable((Node *) clause))
{
MergeOrder *sortop = (MergeOrder *) NULL;
@@ -360,12 +360,12 @@ init_join_info(List *rel_list)
if (sortop)
{
clauseinfo->mergejoinorder = sortop;
restrictinfo->mergejoinorder = sortop;
joininfo->mergejoinable = true;
}
if (hashop)
{
clauseinfo->hashjoinoperator = hashop;
restrictinfo->hashjoinoperator = hashop;
joininfo->hashjoinable = true;
}
}

4
src/backend/optimizer/plan/planner.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planner.c,v 1.40 1999/02/03 19:31:24 wieck Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planner.c,v 1.41 1999/02/03 20:15:39 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -39,7 +39,7 @@
/* DATA STRUCTURE CREATION/MANIPULATION ROUTINES */
#include "nodes/relation.h"
#include "optimizer/clauseinfo.h"
#include "optimizer/restrictinfo.h"
#include "optimizer/joininfo.h"
#include "optimizer/keys.h"
#include "optimizer/ordering.h"

4
src/backend/optimizer/plan/setrefs.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/setrefs.c,v 1.35 1999/02/02 17:46:15 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/setrefs.c,v 1.36 1999/02/03 20:15:39 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -26,7 +26,7 @@
#include "optimizer/internal.h"
#include "optimizer/clauses.h"
#include "optimizer/clauseinfo.h"
#include "optimizer/restrictinfo.h"
#include "optimizer/keys.h"
#include "optimizer/planmain.h"
#include "optimizer/tlist.h"