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| author | Neil Conway <neilc@samurai.com> | 2007-09-19 22:31:48 +0000 |
|---|---|---|
| committer | Neil Conway <neilc@samurai.com> | 2007-09-19 22:31:48 +0000 |
| commit | bbf4fdc2538097bb3103806e1419ceef1f289203 (patch) | |
| tree | a965f57699c4eb681d5c4fad8a09df96b78e18b5 /src/backend/access/gist/gist.c | |
| parent | 4893eadc3ce58bb0793bd2cadd2e67f91c126a06 (diff) | |
| download | postgresql-bbf4fdc2538097bb3103806e1419ceef1f289203.tar.gz | |
Prevent corr() from returning the wrong results for negative correlation
values. The previous coding essentially assumed that x = sqrt(x*x), which
does not hold for x < 0.
Thanks to Jie Zhang at Greenplum and Gavin Sherry for reporting this
issue.
Diffstat (limited to 'src/backend/access/gist/gist.c')
0 files changed, 0 insertions, 0 deletions