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Remove duplicate geqo functions, and more optimizer cleanup

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This commit is contained in:
Bruce Momjian
1999-02-15 03:22:37 +00:00
parent 944d3c395e
commit ba2883b264
26 changed files with 188 additions and 810 deletions
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18
src/backend/optimizer/path/costsize.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/costsize.c,v 1.32 1999/02/13 23:16:16 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/costsize.c,v 1.33 1999/02/15 03:22:04 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -440,21 +440,19 @@ compute_joinrel_size(JoinPath *joinpath)
Cost temp = 1.0;
int temp1 = 0;
/* cartesian product */
temp *= ((Path *) joinpath->outerjoinpath)->parent->size;
temp *= ((Path *) joinpath->innerjoinpath)->parent->size;
temp = temp * product_selec(joinpath->pathinfo);
if (temp >= (MAXINT - 1))
temp1 = MAXINT;
else
if (temp >= (MAXINT-1)/2)
{
/*
* should be ceil here, we don't want joinrel size's of one, do
* we?
*/
temp1 = ceil((double) temp);
/* if we exceed (MAXINT-1)/2, we switch to log scale */
/* +1 prevents log(0) */
temp1 = ceil(log(temp + 1 - (MAXINT-1)/2) + (MAXINT-1)/2);
}
else
temp1 = ceil((double) temp);
Assert(temp1 >= 0);
return temp1;