15 lines
374 B
Ruby
15 lines
374 B
Ruby
class IndexAttachmentsFindExistingRoot < ActiveRecord::Migration[5.2]
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tag :predeploy
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disable_ddl_transaction!
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def up
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add_index :attachments, [:md5, :namespace, :content_type], algorithm: :concurrently,
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where: "root_attachment_id IS NULL and filename IS NOT NULL"
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end
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def down
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remove_index :attachments, [:md5, :namespace, :content_type]
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end
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end
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