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BoZhuM/Hacker_News_Ranking_Algorithm.sql

Forked from ChiChou/Hacker_News_Ranking_Algorithm.sql
Created April 30, 2014 05:32
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  1. ChiChou renamed this gist Mar 31, 2014. 1 changed file with 0 additions and 0 deletions.
    0 Hacker_News_Ranking_Algorithm → Hacker_News_Ranking_Algorithm.sql
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    File renamed without changes.
  2. ChiChou created this gist Feb 7, 2014.
    4 changes: 4 additions & 0 deletions Hacker_News_Ranking_Algorithm
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,4 @@
    -- (p - 1) / (t + 2)^1.5
    CREATE FUNCTION SP_POINTS(P SMALLINT(5), CREATED TIMESTAMP)
    RETURNS TINYINT(3)
    RETURN (P - 1) / POW(TIMESTAMPDIFF(HOUR, CREATED, NOW()) + 2, 1.5);