move normalized text into own table

app/helpers/filter_helper.rb

@@ -7,7 +7,7 @@ module FilterHelper
 
     status = status.reblog if status.reblog?
 
-    if Status.where(id: status.id).where("statuses.normalized_text ~ ANY(ARRAY(SELECT f_normalize(phrase) FROM custom_filters WHERE account_id = ?))", receiver_id).exists?
+    if Status.where(id: status.id).regex_filtered_by_account(receiver_id).exists?
       redis.sadd("filtered_statuses:#{receiver_id}", status.id)
       return true
     end

app/lib/bangtags.rb

@@ -717,7 +717,7 @@ class Bangtags
           q = cmd[1..-1].join.strip
           next if q.blank?
           begin
-            data = @account.statuses.where('normalized_text ~ ?', expand_search_query(q))
+            data = @account.statuses.regex(expand_search_query(q))
               .reorder(:created_at)
               .pluck(:created_at)
               .map { |d| d.strftime('%Y-%m') }

app/models/normalized_status.rb

@@ -0,0 +1,12 @@
+# == Schema Information
+#
+# Table name: normalized_statuses
+#
+#  id        :bigint(8)        not null, primary key
+#  status_id :bigint(8)
+#  text      :text
+#
+
+class NormalizedStatus < ApplicationRecord
+  belongs_to :status, inverse_of: :normalized_status
+end

app/models/status.rb

@@ -33,7 +33,6 @@
 #  origin                 :string
 #  boostable              :boolean
 #  reject_replies         :boolean
-#  normalized_text        :text             default(""), not null
 #
 
 class Status < ApplicationRecord
@@ -86,6 +85,7 @@ class Status < ApplicationRecord
   has_one :status_stat, inverse_of: :status
   has_one :poll, inverse_of: :status, dependent: :destroy
   has_one :destructing_status, inverse_of: :status, dependent: :destroy
+  has_one :normalized_status, inverse_of: :status, dependent: :destroy
 
   validates :uri, uniqueness: true, presence: true, unless: :local?
   validates :text, presence: true, unless: -> { with_media? || reblog? }
@@ -119,7 +119,11 @@ class Status < ApplicationRecord
   scope :mention_not_excluded_by_account, ->(account) { left_outer_joins(:mentions).where('mentions.account_id IS NULL OR mentions.account_id NOT IN (?)', account.excluded_from_timeline_account_ids) }
   scope :not_domain_blocked_by_account, ->(account) { account.excluded_from_timeline_domains.blank? ? left_outer_joins(:account) : left_outer_joins(:account).where('accounts.domain IS NULL OR accounts.domain NOT IN (?)', account.excluded_from_timeline_domains) }
 
-  scope :not_string_filtered_by_account, ->(account) { where("statuses.normalized_text !~ ALL(ARRAY(SELECT f_normalize(phrase) FROM custom_filters WHERE account_id = ?))", account.id) }
+  scope :like, ->(needle) { joins(:normalized_status).where('normalized_statuses.text LIKE f_normalize(?)', needle) }
+  scope :regex, ->(needle) { joins(:normalized_status).where('normalized_statuses.text ~ f_normalize(?)', needle) }
+  scope :regex_filtered_by_account, ->(account) { joins(:normalized_status).where('normalized_statuses.text ~ ANY(ARRAY(SELECT f_normalize(phrase) FROM custom_filters WHERE account_id = ?))', account.id) }
+  scope :regex_not_filtered_by_account, ->(account) { joins(:normalized_status).where('normalized_statuses.text !~ ALL(ARRAY(SELECT f_normalize(phrase) FROM custom_filters WHERE account_id = ?))', account.id) }
+
   scope :not_missing_media_desc, -> { left_outer_joins(:media_attachments).where('media_attachments.id IS NULL OR media_attachments.description IS NOT NULL') }
 
   scope :tagged_with_all, ->(tags) {
@@ -340,10 +344,9 @@ class Status < ApplicationRecord
   before_validation :infer_reject_replies
 
   after_create :set_poll_id
+  after_create :update_normalized_text
   after_create :process_bangtags, if: :local?
 
-  before_save :update_normalized_text
-
   class << self
     include SearchHelper
 
@@ -359,7 +362,7 @@ class Status < ApplicationRecord
       end
       return none if term.blank? || term.length < 3
       query = query.without_reblogs
-        .where('normalized_text ~ ?', expand_search_query(term))
+        .regex(expand_search_query(term))
         .offset(offset).limit(limit)
       apply_timeline_filters(query, account, true)
     rescue ActiveRecord::StatementInvalid
@@ -554,7 +557,7 @@ class Status < ApplicationRecord
       query = query.in_chosen_languages(account) if account.chosen_languages.present?
       query = query.reply_not_excluded_by_account(account) unless tag_timeline
       query = query.mention_not_excluded_by_account(account)
-      query = query.not_string_filtered_by_account(account) if account.custom_filters.present?
+      query = query.regex_not_filtered_by_account(account) if account.custom_filters.present?
       query = query.not_missing_media_desc if account.filter_undescribed?
       query.merge(account_silencing_filter(account))
     end
@@ -630,9 +633,13 @@ class Status < ApplicationRecord
   end
 
   def update_normalized_text
-    return if destroyed?
-    return unless (normalized_text.blank? && !text.blank?) || saved_change_to_text?
-    self.normalized_text = normalize_status(self)
+    return if destroyed? || text.blank? || !(text_changed? || saved_change_to_text?)
+    normalized_text = normalize_status(self)
+    if self.normalized_status.nil?
+      self.create_normalized_status(text: normalized_text)
+    else
+      self.normalized_status.update_attributes(text: normalized_text)
+    end
   end
 
   def set_conversation

db/migrate/20191118084127_migrate_to_new_search_impl.rb

@@ -22,7 +22,6 @@ class MigrateToNewSearchImpl < ActiveRecord::Migration[5.2]
   end
 
   def down
-    #raise ActiveRecord::IrreversibleMigration
-    true
+    raise ActiveRecord::IrreversibleMigration
   end
 end

db/migrate/20191211235208_create_normalized_statuses.rb

@@ -0,0 +1,23 @@
+class CreateNormalizedStatuses < ActiveRecord::Migration[5.2]
+  def up
+    create_table :normalized_statuses do |t|
+      t.references :status, foreign_key: true
+      t.text :text
+    end
+
+    safety_assured do
+      remove_index :statuses, name: 'index_statuses_on_normalized_text_trgm'
+      execute 'INSERT INTO normalized_statuses (status_id, text) SELECT id, normalized_text FROM statuses'
+      remove_column :statuses, :normalized_text
+    end
+  end
+
+  def down
+    safety_assured do
+      execute 'UPDATE statuses SET normalized_text = s.text FROM (SELECT status_id, text FROM normalized_statuses) AS s WHERE statuses.id = s.id'
+      remove_index :normalized_statuses, name: 'index_statuses_on_normalized_text_trgm'
+      drop_table :normalized_statuses
+      add_column :statuses, :normalized_text, :text, null: false, default: ''
+    end
+  end
+end

db/migrate/20191212002705_add_index_to_normalized_statuses.rb

@@ -0,0 +1,13 @@
+class AddIndexToNormalizedStatuses < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def up
+    safety_assured do
+      execute 'CREATE INDEX CONCURRENTLY IF NOT EXISTS index_statuses_on_normalized_text_trgm ON normalized_statuses USING GIN (text gin_trgm_ops)'
+    end
+  end
+
+  def down
+    remove_index :normalized_statuses, name: 'index_statuses_on_normalized_text_trgm'
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2019_11_18_102858) do
+ActiveRecord::Schema.define(version: 2019_12_12_002705) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_trgm"
@@ -432,6 +432,13 @@ ActiveRecord::Schema.define(version: 2019_11_18_102858) do
     t.index ["target_account_id"], name: "index_mutes_on_target_account_id"
   end
 
+  create_table "normalized_statuses", force: :cascade do |t|
+    t.bigint "status_id"
+    t.text "text"
+    t.index ["status_id"], name: "index_normalized_statuses_on_status_id"
+    t.index ["text"], name: "index_statuses_on_normalized_text_trgm", opclass: :gin_trgm_ops, using: :gin
+  end
+
   create_table "notifications", force: :cascade do |t|
     t.bigint "activity_id", null: false
     t.string "activity_type", null: false
@@ -689,13 +696,11 @@ ActiveRecord::Schema.define(version: 2019_11_18_102858) do
     t.string "origin"
     t.boolean "boostable"
     t.boolean "reject_replies"
-    t.text "normalized_text", default: "", null: false
     t.index ["account_id", "id", "visibility", "updated_at"], name: "index_statuses_20180106", order: { id: :desc }
     t.index ["account_id", "id", "visibility"], name: "index_statuses_on_account_id_and_id_and_visibility", order: { id: :desc }, where: "(visibility = ANY (ARRAY[0, 1, 2, 4]))"
     t.index ["in_reply_to_account_id"], name: "index_statuses_on_in_reply_to_account_id"
     t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id"
     t.index ["network"], name: "index_statuses_on_network", where: "network"
-    t.index ["normalized_text"], name: "index_statuses_on_normalized_text_trgm", opclass: :gin_trgm_ops, using: :gin
     t.index ["origin"], name: "index_statuses_on_origin", unique: true
     t.index ["reblog_of_id", "account_id"], name: "index_statuses_on_reblog_of_id_and_account_id"
     t.index ["uri"], name: "index_statuses_on_uri", unique: true
@@ -860,6 +865,7 @@ ActiveRecord::Schema.define(version: 2019_11_18_102858) do
   add_foreign_key "mentions", "statuses", on_delete: :cascade
   add_foreign_key "mutes", "accounts", column: "target_account_id", name: "fk_eecff219ea", on_delete: :cascade
   add_foreign_key "mutes", "accounts", name: "fk_b8d8daf315", on_delete: :cascade
+  add_foreign_key "normalized_statuses", "statuses"
   add_foreign_key "notifications", "accounts", column: "from_account_id", name: "fk_fbd6b0bf9e", on_delete: :cascade
   add_foreign_key "notifications", "accounts", name: "fk_c141c8ee55", on_delete: :cascade
   add_foreign_key "oauth_access_grants", "oauth_applications", column: "application_id", name: "fk_34d54b0a33", on_delete: :cascade

spec/fabricators/normalized_status_fabricator.rb

@@ -0,0 +1,4 @@
+Fabricator(:normalized_status) do
+  status nil
+  text   "MyText"
+end

spec/models/normalized_status_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe NormalizedStatus, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

streaming/index.js

@@ -417,7 +417,7 @@ const startWorker = (workerId) => {
         }
 
         const queries = [
-          client.query(`SELECT 1 FROM blocks WHERE (account_id = $1 AND target_account_id IN (${placeholders(targetAccountIds, 3)})) OR (account_id = $2 AND target_account_id = $1) UNION SELECT 1 FROM mutes WHERE account_id = $1 AND target_account_id IN (${placeholders(targetAccountIds, 3)}) UNION SELECT 1 FROM statuses WHERE id = $3 AND normalized_text ~ ANY(ARRAY(SELECT f_normalize(phrase) FROM custom_filters WHERE account_id = $1)) UNION SELECT 1 FROM media_attachments WHERE (1 = (SELECT 1 FROM accounts WHERE id = $1 AND filter_undescribed)) AND status_id = $3 AND description IS NULL LIMIT 1`, [req.accountId, unpackedPayload.account.id, unpackedPayload.id].concat(targetAccountIds)),
+          client.query(`SELECT 1 FROM blocks WHERE (account_id = $1 AND target_account_id IN (${placeholders(targetAccountIds, 3)})) OR (account_id = $2 AND target_account_id = $1) UNION SELECT 1 FROM mutes WHERE account_id = $1 AND target_account_id IN (${placeholders(targetAccountIds, 3)}) UNION SELECT 1 FROM normalized_statuses WHERE status_id = $3 AND text ~ ANY(ARRAY(SELECT f_normalize(phrase) FROM custom_filters WHERE account_id = $1)) UNION SELECT 1 FROM media_attachments WHERE (1 = (SELECT 1 FROM accounts WHERE id = $1 AND filter_undescribed)) AND status_id = $3 AND description IS NULL LIMIT 1`, [req.accountId, unpackedPayload.account.id, unpackedPayload.id].concat(targetAccountIds)),
         ];
 
         if (accountDomain) {