[migration] make this index creation conditional
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@ -2,6 +2,8 @@ class AddIndexToStatusesReply < ActiveRecord::Migration[5.2]
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disable_ddl_transaction!
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disable_ddl_transaction!
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def change
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def change
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if !index_exists?(:statuses, :reply)
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add_index :statuses, :reply, algorithm: :concurrently
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add_index :statuses, :reply, algorithm: :concurrently
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end
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end
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end
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end
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end
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