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Improve tag search query (#16104)

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abcang 2021-04-25 13:33:28 +09:00 • committed by GitHub
parent daccc07dc1
commit 7f0c49c58a
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4 changed files with 35 additions and 10 deletions
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13
db/migrate/20210421121431_add_case_insensitive_btree_index_to_tags.rb Normal file
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class AddCaseInsensitiveBtreeIndexToTags < ActiveRecord::Migration[5.2]
disable_ddl_transaction!
def up
safety_assured { execute 'CREATE UNIQUE INDEX CONCURRENTLY index_tags_on_name_lower_btree ON tags (lower(name) text_pattern_ops)' }
remove_index :tags, name: 'index_tags_on_name_lower'
end
def down
safety_assured { execute 'CREATE UNIQUE INDEX CONCURRENTLY index_tags_on_name_lower ON tags (lower(name))' }
remove_index :tags, name: 'index_tags_on_name_lower_btree'
end
end