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Convert effective_cache_size to an integer, for better integration with

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upcoming units feature.
This commit is contained in:
Peter Eisentraut
2006-07-26 11:35:56 +00:00
parent 0c57c832b9
commit 79bc99a467
4 changed files with 20 additions and 20 deletions
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6
src/backend/optimizer/path/costsize.c
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@ -54,7 +54,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.163 2006/07/22 15:41:55 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.164 2006/07/26 11:35:56 petere Exp $
*
*-------------------------------------------------------------------------
*/
@ -92,7 +92,7 @@ double cpu_tuple_cost = DEFAULT_CPU_TUPLE_COST;
double cpu_index_tuple_cost = DEFAULT_CPU_INDEX_TUPLE_COST;
double cpu_operator_cost = DEFAULT_CPU_OPERATOR_COST;
double effective_cache_size = DEFAULT_EFFECTIVE_CACHE_SIZE;
int effective_cache_size = DEFAULT_EFFECTIVE_CACHE_SIZE;
Cost disable_cost = 100000000.0;
@ -393,7 +393,7 @@ index_pages_fetched(double tuples_fetched, BlockNumber pages,
T = (pages > 1) ? (double) pages : 1.0;
/* b is pro-rated share of effective_cache_size */
b = effective_cache_size * T / (T + (double) other_pages);
b = (double) effective_cache_size * T / (T + (double) other_pages);
/* force it positive and integral */
if (b <= 1.0)
b = 1.0;