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Add attribute optimization statistics.

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This commit is contained in:
Bruce Momjian
1997-02-07 16:24:12 +00:00
parent 4c0faba0fe
commit 2300ac0dc4
7 changed files with 580 additions and 224 deletions
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721
src/backend/commands/vacuum.c
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File diff suppressed because it is too large Load Diff

6
src/backend/parser/analyze.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.20 1997/01/22 01:42:54 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.21 1997/02/07 16:22:50 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1486,7 +1486,7 @@ any_ordering_op(int restype)
Operator order_op;
Oid order_opid;
order_op = oper("<",restype,restype);
order_op = oper("<",restype,restype,false);
order_opid = oprid(order_op);
return order_opid;
@@ -1554,7 +1554,7 @@ transformSortClause(ParseState *pstate,
sortcl->resdom = resdom = restarget->resdom;
sortcl->opoid = oprid(oper(sortby->useOp,
resdom->restype,
resdom->restype));
resdom->restype,false));
if (sortlist == NIL) {
s = sortlist = lcons(sortcl, NIL);
}else {

18
src/backend/parser/catalog_utils.c
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@@ -6,7 +6,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/catalog_utils.c,v 1.15 1997/01/22 01:43:08 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/catalog_utils.c,v 1.16 1997/02/07 16:23:08 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -473,7 +473,7 @@ binary_oper_select_candidate(Oid arg1,
/* Given operator, types of arg1, and arg2, return oper struct */
/* arg1, arg2 --typeids */
Operator
oper(char *op, Oid arg1, Oid arg2)
oper(char *op, Oid arg1, Oid arg2, bool noWarnings)
{
HeapTuple tup;
CandidateList candidates;
@@ -492,7 +492,8 @@ oper(char *op, Oid arg1, Oid arg2)
/*
* no operators of the desired types found
*/
op_error(op, arg1, arg2);
if (!noWarnings)
op_error(op, arg1, arg2);
return(NULL);
} else if (ncandidates == 1) {
/*
@@ -523,11 +524,12 @@ oper(char *op, Oid arg1, Oid arg2)
/* we chose none of them */
tp1 = get_id_type(arg1);
tp2 = get_id_type(arg2);
elog(NOTICE, "there is more than one operator %s for types", op);
elog(NOTICE, "%s and %s. You will have to retype this query",
tname(tp1), tname(tp2));
elog(WARN, "using an explicit cast");
if (!noWarnings) {
elog(NOTICE, "there is more than one operator %s for types", op);
elog(NOTICE, "%s and %s. You will have to retype this query",
tname(tp1), tname(tp2));
elog(WARN, "using an explicit cast");
}
return(NULL);
}
}

6
src/backend/parser/parse_query.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/parse_query.c,v 1.12 1997/01/22 01:43:19 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/parse_query.c,v 1.13 1997/02/07 16:23:21 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -352,7 +352,7 @@ make_op(char *opname, Node *ltree, Node *rtree)
/* right operator */
ltypeId = (ltree==NULL) ? UNKNOWNOID : exprType(ltree);
temp = right_oper(opname, ltypeId);
temp = oper(opname, ltypeId, rtypeId, false);
opform = (OperatorTupleForm) GETSTRUCT(temp);
left = make_operand(opname, ltree, ltypeId, opform->oprleft);
right = NULL;
@@ -411,7 +411,7 @@ make_op(char *opname, Node *ltree, Node *rtree)
((Const *)ltree)->constbyval = tbyval(newtype);
}
temp = oper(opname, ltypeId, rtypeId);
temp = oper(opname, ltypeId, rtypeId, false);
opform = (OperatorTupleForm) GETSTRUCT(temp);
left = make_operand(opname, ltree, ltypeId, opform->oprleft);
right = make_operand(opname, rtree, rtypeId, opform->oprright);

9
src/backend/utils/adt/selfuncs.c
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@@ -12,7 +12,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.4 1996/11/03 06:53:08 scrappy Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.5 1997/02/07 16:23:39 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -33,6 +33,7 @@
#include "utils/lsyscache.h" /* for get_oprrest() */
#include "catalog/pg_statistic.h"
#include "commands/vacuum.h" /* for ATTNVALS_SCALE */
/* N is not a valid var/constant or relation id */
#define NONVALUE(N) ((N) == -1)
@@ -68,7 +69,7 @@ eqsel(Oid opid,
if (nvals == 0)
*result = 0.0;
else
*result = 1.0 / nvals;
*result = ((float64data)nvals) / ((float64data)ATTNVALS_SCALE);
}
return(result);
}
@@ -125,7 +126,7 @@ intltsel(Oid opid,
if (nvals == 0)
*result = 1.0 / 3.0;
else
*result = 3.0 / nvals;
*result = 3.0 * ((float64data)nvals) / ((float64data)ATTNVALS_SCALE);
}else {
bottom = high - low;
if (bottom == 0)
@@ -192,7 +193,7 @@ eqjoinsel(Oid opid,
if (max == 0)
*result = 1.0;
else
*result = 1.0 / max;
*result = ((float64data)max) / ((float64data)ATTNVALS_SCALE);
}
return(result);
}