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| author | Vadim B. Mikheev <vadim4o@yahoo.com> | 1997-04-09 01:52:04 +0000 |
|---|---|---|
| committer | Vadim B. Mikheev <vadim4o@yahoo.com> | 1997-04-09 01:52:04 +0000 |
| commit | fa2629b7eaa46d1295843f091c45e107b19cadd7 (patch) | |
| tree | 0e3db6196da983726fee64c238ed24fadd567699 /src/backend/utils/adt/arrayfuncs.c | |
| parent | b30aa6ecb89f79871625cd7bd1d8767029e1e02a (diff) | |
| download | postgresql-fa2629b7eaa46d1295843f091c45e107b19cadd7.tar.gz postgresql-fa2629b7eaa46d1295843f091c45e107b19cadd7.zip | |
Fix (hack) IndexSelectivity():
use sum(npages)/((nkeys == 1) ? 1 : nkeys + 1) as expected index page
estimation for multi-key quals - instead of sum(npages).
In old code npages for x > 10 and x < 20 is twice as for x > 10 - cool ?
Diffstat (limited to 'src/backend/utils/adt/arrayfuncs.c')
0 files changed, 0 insertions, 0 deletions