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@mikegrassotti
Created May 16, 2012 17:26
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cohort activity
select DATE_FORMAT(u.created_at, '%Y-%m'), DATE_FORMAT(p.published_at, '%Y-%m'), count(*) FROM pfeed_items p, users u where u.id = p.originator_id and p.type IN ('Pfeeds::UserJoinedGroup', 'Pfeeds::UserLeftGroup', 'Pfeeds::UserInvitedUser', 'Pfeeds::UserSharedActivity', 'Pfeeds::UserMessagedGroup', 'Pfeeds::UserPostedItem', 'Pfeeds::UserAttachedTag', 'Pfeeds::UserCreatedBlogPost', 'Pfeeds::UserLikedItem', 'Pfeeds::UserFollowedItem') AND u.created_at > '2012-01-01' AND p.published_at > '2012-01-01' GROUP BY DATE_FORMAT(u.created_at, '%Y-%m'), DATE_FORMAT(p.published_at, '%Y-%m')
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