Add innercost to result in cost_hashjoin.

This commit is contained in:
Vadim B. Mikheev 1997-04-24 15:49:30 +00:00
parent 72b523d055
commit 4ec8a148ed
1 changed files with 13 additions and 9 deletions

View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/costsize.c,v 1.14 1997/04/09 02:13:41 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/costsize.c,v 1.15 1997/04/24 15:49:30 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@ -321,15 +321,19 @@ cost_hashjoin(Cost outercost,
return _disable_cost_;
if ( !_enable_hashjoin_ )
temp += _disable_cost_;
/* temp += outercost + (nrun + 1) * innercost; */
/*
the innercost shouldn't be used it. Instead the
cost of hashing the innerpath should be used
ASSUME innercost is 1 for now -- a horrible hack
- jolly
*/
/*
temp += outercost + (nrun + 1) * innercost;
*
* the innercost shouldn't be used it. Instead the
* cost of hashing the innerpath should be used
*
* ASSUME innercost is 1 for now -- a horrible hack
* - jolly
temp += outercost + (nrun + 1);
*
* But we must add innercost to result. - vadim 04/24/97
*/
temp += outercost + innercost + (nrun + 1);
temp += _cpu_page_wight_ * (outersize + nrun * innersize);
Assert(temp >= 0);