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8cb5939f50
* Adding hot_rank columns in place of function sorting. - Creates hot_rank columns for post, comment, and community. - Fixes #2932 * Updating all hot ranks on startup. * Fixing post.url migration. * Removing update_instance_software from startup. * Adding post_rank query
51 lines
2.7 KiB
SQL
51 lines
2.7 KiB
SQL
-- This converts the old hot_rank functions, to columns
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-- Remove the old compound indexes
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DROP INDEX idx_post_aggregates_featured_local_newest_comment_time;
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DROP INDEX idx_post_aggregates_featured_community_newest_comment_time;
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DROP INDEX idx_post_aggregates_featured_local_comments;
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DROP INDEX idx_post_aggregates_featured_community_comments;
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DROP INDEX idx_post_aggregates_featured_local_hot;
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DROP INDEX idx_post_aggregates_featured_community_hot;
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DROP INDEX idx_post_aggregates_featured_local_score;
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DROP INDEX idx_post_aggregates_featured_community_score;
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DROP INDEX idx_post_aggregates_featured_local_published;
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DROP INDEX idx_post_aggregates_featured_community_published;
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DROP INDEX idx_post_aggregates_featured_local_active;
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DROP INDEX idx_post_aggregates_featured_community_active;
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DROP INDEX idx_comment_aggregates_hot;
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DROP INDEX idx_community_aggregates_hot;
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-- Add the new hot rank columns for post and comment aggregates
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-- Note: 1728 is the result of the hot_rank function, with a score of 1, posted now
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-- hot_rank = 10000*log10(1 + 3)/Power(2, 1.8)
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alter table post_aggregates add column hot_rank integer not null default 1728;
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alter table post_aggregates add column hot_rank_active integer not null default 1728;
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alter table comment_aggregates add column hot_rank integer not null default 1728;
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alter table community_aggregates add column hot_rank integer not null default 1728;
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-- Populate them initially
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-- Note: After initial population, these are updated in a periodic scheduled job,
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-- with only the last week being updated.
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update post_aggregates set hot_rank_active = hot_rank(score::numeric, newest_comment_time_necro);
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update post_aggregates set hot_rank = hot_rank(score::numeric, published);
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update comment_aggregates set hot_rank = hot_rank(score::numeric, published);
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update community_aggregates set hot_rank = hot_rank(subscribers::numeric, published);
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-- Create single column indexes
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create index idx_post_aggregates_score on post_aggregates (score desc);
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create index idx_post_aggregates_published on post_aggregates (published desc);
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create index idx_post_aggregates_newest_comment_time on post_aggregates (newest_comment_time desc);
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create index idx_post_aggregates_newest_comment_time_necro on post_aggregates (newest_comment_time_necro desc);
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create index idx_post_aggregates_featured_community on post_aggregates (featured_community desc);
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create index idx_post_aggregates_featured_local on post_aggregates (featured_local desc);
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create index idx_post_aggregates_hot on post_aggregates (hot_rank desc);
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create index idx_post_aggregates_active on post_aggregates (hot_rank_active desc);
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create index idx_comment_aggregates_hot on comment_aggregates (hot_rank desc);
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create index idx_community_aggregates_hot on community_aggregates (hot_rank desc);
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