Search Postgresql Archives

Re: Functionally dependent columns in SELECT DISTINCT

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





> or use a lateral subquery to surgically (fetch first 1) retrieve the first row when sorted by recency descending.

I'm not sure that I see how to apply this when I need top-k, not top-1.

Fetch first k

It's just a modern limit clause.

David J.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]

  Powered by Linux