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PERF: Add index to speed up ReindexSearch job (#20151)

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Daniel Waterworth 2023-02-21 12:16:43 -06:00 committed by GitHub
parent 692e843832
commit b96a23978a
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2 changed files with 34 additions and 12 deletions
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25
app/models/post.rb
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@ -1285,16 +1285,17 @@ end
# #
# Indexes # Indexes
# #
# idx_posts_created_at_topic_id (created_at,topic_id) WHERE (deleted_at IS NULL) # idx_posts_created_at_topic_id (created_at,topic_id) WHERE (deleted_at IS NULL)
# idx_posts_deleted_posts (topic_id,post_number) WHERE (deleted_at IS NOT NULL) # idx_posts_deleted_posts (topic_id,post_number) WHERE (deleted_at IS NOT NULL)
# idx_posts_user_id_deleted_at (user_id) WHERE (deleted_at IS NULL) # idx_posts_user_id_deleted_at (user_id) WHERE (deleted_at IS NULL)
# index_for_rebake_old (id) WHERE (((baked_version IS NULL) OR (baked_version < 2)) AND (deleted_at IS NULL)) # index_for_rebake_old (id) WHERE (((baked_version IS NULL) OR (baked_version < 2)) AND (deleted_at IS NULL))
# index_posts_on_id_and_baked_version (id DESC,baked_version) WHERE (deleted_at IS NULL) # index_posts_on_id_and_baked_version (id DESC,baked_version) WHERE (deleted_at IS NULL)
# index_posts_on_image_upload_id (image_upload_id) # index_posts_on_id_topic_id_where_not_deleted_or_empty (id,topic_id) WHERE ((deleted_at IS NULL) AND (raw <> ''::text))
# index_posts_on_reply_to_post_number (reply_to_post_number) # index_posts_on_image_upload_id (image_upload_id)
# index_posts_on_topic_id_and_percent_rank (topic_id,percent_rank) # index_posts_on_reply_to_post_number (reply_to_post_number)
# index_posts_on_topic_id_and_post_number (topic_id,post_number) UNIQUE # index_posts_on_topic_id_and_percent_rank (topic_id,percent_rank)
# index_posts_on_topic_id_and_sort_order (topic_id,sort_order) # index_posts_on_topic_id_and_post_number (topic_id,post_number) UNIQUE
# index_posts_on_user_id_and_created_at (user_id,created_at) # index_posts_on_topic_id_and_sort_order (topic_id,sort_order)
# index_posts_user_and_likes (user_id,like_count DESC,created_at DESC) WHERE (post_number > 1) # index_posts_on_user_id_and_created_at (user_id,created_at)
# index_posts_user_and_likes (user_id,like_count DESC,created_at DESC) WHERE (post_number > 1)
# #

21
db/migrate/20230202204937_add_index_to_posts_where_not_deleted_or_empty.rb Normal file
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@ -0,0 +1,21 @@
# frozen_string_literal: true
class AddIndexToPostsWhereNotDeletedOrEmpty < ActiveRecord::Migration[7.0]
disable_ddl_transaction!
def up
execute <<~SQL
DROP INDEX CONCURRENTLY IF EXISTS index_posts_on_id_topic_id_where_not_deleted_or_empty
SQL
execute <<~SQL
CREATE INDEX CONCURRENTLY index_posts_on_id_topic_id_where_not_deleted_or_empty ON posts (id, topic_id) where deleted_at IS NULL AND raw <> ''
SQL
end
def down
execute <<~SQL
DROP INDEX IF EXISTS index_posts_on_id_topic_id_where_not_deleted_or_empty
SQL
end
end