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16 lines
585 B
16 lines
585 B
5 years ago
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class AddCaseInsensitiveIndexToTags < ActiveRecord::Migration[5.2]
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disable_ddl_transaction!
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def up
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safety_assured { execute 'CREATE UNIQUE INDEX CONCURRENTLY index_tags_on_name_lower ON tags (lower(name))' }
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remove_index :tags, name: 'index_tags_on_name'
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remove_index :tags, name: 'hashtag_search_index'
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end
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def down
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add_index :tags, :name, unique: true, algorithm: :concurrently
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safety_assured { execute 'CREATE INDEX CONCURRENTLY hashtag_search_index ON tags (name text_pattern_ops)' }
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remove_index :tags, name: 'index_tags_on_name_lower'
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end
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end
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