On 11/27/17 23:03, Tom Lane wrote:
>
> Note that the sample data has a lot of collisions:
>
> regression=# select hashint8(val), count(*) from reproducer group by 1 order by 2 desc;
> hashint8 | count
> -------------+-------
> 441526644 | 2337
> -1117776826 | 1221
> -1202007016 | 935
> -2068831050 | 620
> 1156644653 | 538
> 553783815 | 510
> 259780770 | 444
> 371047036 | 394
> 915722575 | 359
> ... etc etc ...
In case it matters, the complete data set will have some outlier values with 10k to 100k
collisions in this column.
-- todd
