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-rw-r--r--src/backend/optimizer/path/costsize.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/optimizer/path/costsize.c b/src/backend/optimizer/path/costsize.c
index 2b6dc27973a..c67398d5b0d 100644
--- a/src/backend/optimizer/path/costsize.c
+++ b/src/backend/optimizer/path/costsize.c
@@ -49,7 +49,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.134 2004/08/29 05:06:43 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.135 2004/10/23 00:05:27 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -566,7 +566,7 @@ cost_sort(Path *path, Query *root,
if (nbytes > work_mem_bytes)
{
double npages = ceil(nbytes / BLCKSZ);
- double nruns = nbytes / (work_mem_bytes * 2);
+ double nruns = (nbytes / work_mem_bytes) * 0.5;
double log_runs = ceil(LOG6(nruns));
double npageaccesses;