migrations/2023-01-17-165819_cleanup_post_aggregates_indexes/up.sql

   1 -- Drop the old indexes
   2 drop index idx_post_aggregates_newest_comment_time,
   3   idx_post_aggregates_comments,
   4   idx_post_aggregates_hot,
   5   idx_post_aggregates_active,
   6   idx_post_aggregates_score,
   7   idx_post_aggregates_published;
   8
   9 -- All of the post fetching queries now start with either
  10 -- featured_local desc, or featured_community desc, then the other sorts.
  11 -- So you now need to double these indexes
  12
  13 create index idx_post_aggregates_featured_local_newest_comment_time on post_aggregates (featured_local desc, newest_comment_time desc);
  14 create index idx_post_aggregates_featured_community_newest_comment_time on post_aggregates (featured_community desc, newest_comment_time desc);
  15
  16 create index idx_post_aggregates_featured_local_comments on post_aggregates (featured_local desc, comments desc);
  17 create index idx_post_aggregates_featured_community_comments on post_aggregates (featured_community desc, comments desc);
  18
  19 create index idx_post_aggregates_featured_local_hot on post_aggregates (featured_local desc, hot_rank(score, published) desc, published desc);
  20 create index idx_post_aggregates_featured_community_hot on post_aggregates (featured_community desc, hot_rank(score, published) desc, published desc);
  21
  22 create index idx_post_aggregates_featured_local_active on post_aggregates (featured_local desc, hot_rank(score, newest_comment_time) desc, newest_comment_time desc);
  23 create index idx_post_aggregates_featured_community_active on post_aggregates (featured_community desc, hot_rank(score, newest_comment_time) desc, newest_comment_time desc);
  24
  25 create index idx_post_aggregates_featured_local_score on post_aggregates (featured_local desc, score desc);
  26 create index idx_post_aggregates_featured_community_score on post_aggregates (featured_community desc, score desc);
  27
  28 create index idx_post_aggregates_featured_local_published on post_aggregates (featured_local desc, published desc);
  29 create index idx_post_aggregates_featured_community_published on post_aggregates (featured_community desc, published desc);
  30