diff options
Diffstat (limited to 'src/backend/commands/analyze.c')
| -rw-r--r-- | src/backend/commands/analyze.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/backend/commands/analyze.c b/src/backend/commands/analyze.c index 41c863a5ba6..085032cd7ac 100644 --- a/src/backend/commands/analyze.c +++ b/src/backend/commands/analyze.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/commands/analyze.c,v 1.23 2001/10/25 05:49:23 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/commands/analyze.c,v 1.24 2001/10/25 20:37:30 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1244,8 +1244,7 @@ compute_scalar_stats(VacAttrStats *stats, { int tupno = values[i].tupno; - corr_xysum += (double) i *(double) tupno; - + corr_xysum += ((double) i) * ((double) tupno); dups_cnt++; if (tupnoLink[tupno] == tupno) { @@ -1519,9 +1518,10 @@ compute_scalar_stats(VacAttrStats *stats, * (values_cnt-1)*values_cnt*(2*values_cnt-1) / 6. *---------- */ - corr_xsum = (double) (values_cnt - 1) * (double) values_cnt / 2.0; - corr_x2sum = (double) (values_cnt - 1) * (double) values_cnt * - (double) (2 * values_cnt - 1) / 6.0; + corr_xsum = ((double) (values_cnt - 1)) * + ((double) values_cnt) / 2.0; + corr_x2sum = ((double) (values_cnt - 1)) * + ((double) values_cnt) * (double) (2 * values_cnt - 1) / 6.0; /* And the correlation coefficient reduces to */ corrs[0] = (values_cnt * corr_xysum - corr_xsum * corr_xsum) / |