33 lines
1.2 KiB
Ruby
33 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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# See https://docs.gitlab.com/ee/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class AddTodosProjectAndIdIndex < Gitlab::Database::Migration[1.0]
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# When using the methods "add_concurrent_index" or "remove_concurrent_index"
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# you must disable the use of transactions
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# as these methods can not run in an existing transaction.
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# When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
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# that either of them is the _only_ method called in the migration,
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# any other changes should go in a separate migration.
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# This ensures that upon failure _only_ the index creation or removing fails
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# and can be retried or reverted easily.
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#
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# To disable transactions uncomment the following line and remove these
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# comments:
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disable_ddl_transaction!
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NEW_INDEX_NAME = 'index_todos_on_project_id_and_id'
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OLD_INDEX_NAME = 'index_todos_on_project_id'
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def up
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add_concurrent_index :todos, [:project_id, :id], name: NEW_INDEX_NAME
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remove_concurrent_index_by_name :todos, OLD_INDEX_NAME
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end
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def down
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add_concurrent_index :todos, :project_id, name: OLD_INDEX_NAME
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remove_concurrent_index_by_name :todos, NEW_INDEX_NAME
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end
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end
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