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Fix follow recommendation biased towards older accounts (#17126)

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Takeshi Umeda 2021-12-14 07:21:14 +09:00 • committed by GitHub
parent 0fc73bbcb9
commit bda8e4f815
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4 changed files with 51 additions and 4 deletions
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db/migrate/20211213040746_update_account_summaries_to_version_2.rb Normal file
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class UpdateAccountSummariesToVersion2 < ActiveRecord::Migration[6.1]
def up
reapplication_follow_recommendations_v2 do
drop_view :account_summaries, materialized: true
create_view :account_summaries, version: 2, materialized: { no_data: true }
safety_assured { add_index :account_summaries, :account_id, unique: true }
end
end
def down
reapplication_follow_recommendations_v2 do
drop_view :account_summaries, materialized: true
create_view :account_summaries, version: 1, materialized: { no_data: true }
safety_assured { add_index :account_summaries, :account_id, unique: true }
end
end
def reapplication_follow_recommendations_v2
drop_view :follow_recommendations, materialized: true
yield
create_view :follow_recommendations, version: 2, materialized: { no_data: true }
safety_assured { add_index :follow_recommendations, :account_id, unique: true }
end
end