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Change hashtags to preserve first-used casing (#11416)

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Eugen Rochko 2019-07-28 05:59:51 +02:00 • committed by GitHub
parent 4cc29eb5ad
commit f371b32137
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6 changed files with 54 additions and 19 deletions
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15
db/migrate/20190726175042_add_case_insensitive_index_to_tags.rb Normal file
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@ -0,0 +1,15 @@
class AddCaseInsensitiveIndexToTags < ActiveRecord::Migration[5.2]
disable_ddl_transaction!
def up
safety_assured { execute 'CREATE UNIQUE INDEX CONCURRENTLY index_tags_on_name_lower ON tags (lower(name))' }
remove_index :tags, name: 'index_tags_on_name'
remove_index :tags, name: 'hashtag_search_index'
end
def down
add_index :tags, :name, unique: true, algorithm: :concurrently
safety_assured { execute 'CREATE INDEX CONCURRENTLY hashtag_search_index ON tags (name text_pattern_ops)' }
remove_index :tags, name: 'index_tags_on_name_lower'
end
end

5
db/schema.rb
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@ -10,7 +10,7 @@
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 2019_07_15_164535) do
ActiveRecord::Schema.define(version: 2019_07_26_175042) do
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
@ -652,8 +652,7 @@ ActiveRecord::Schema.define(version: 2019_07_15_164535) do
t.string "name", default: "", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index "lower((name)::text) text_pattern_ops", name: "hashtag_search_index"
t.index ["name"], name: "index_tags_on_name", unique: true
t.index "lower((name)::text)", name: "index_tags_on_name_lower", unique: true
end
create_table "tombstones", force: :cascade do |t|