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49 | 49 | * Portions Copyright (c) 1994, Regents of the University of California |
50 | 50 | * |
51 | 51 | * IDENTIFICATION |
52 | | - * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.134 2004/08/2905:06:43 momjian Exp $ |
| 52 | + * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.135 2004/10/23 00:05:27 tgl Exp $ |
53 | 53 | * |
54 | 54 | *------------------------------------------------------------------------- |
55 | 55 | */ |
@@ -566,7 +566,7 @@ cost_sort(Path *path, Query *root, |
566 | 566 | if (nbytes>work_mem_bytes) |
567 | 567 | { |
568 | 568 | doublenpages=ceil(nbytes /BLCKSZ); |
569 | | -doublenruns=nbytes /(work_mem_bytes*2); |
| 569 | +doublenruns=(nbytes /work_mem_bytes)*0.5; |
570 | 570 | doublelog_runs=ceil(LOG6(nruns)); |
571 | 571 | doublenpageaccesses; |
572 | 572 |
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