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# frozen_string_literal: true
class FixUniquePackagesIndexExcludingPendingDestructionStatus < Gitlab::Database::Migration[1.0]
disable_ddl_transaction!
GO_UNIQUE_INDEX_NAME = 'index_packages_on_project_id_name_version_unique_when_golang'
GENERIC_UNIQUE_INDEX_NAME = 'index_packages_on_project_id_name_version_unique_when_generic'
HELM_UNIQUE_INDEX_NAME = 'index_packages_on_project_id_name_version_unique_when_helm'
NEW_GO_UNIQUE_INDEX_NAME = 'idx_packages_on_project_id_name_version_unique_when_golang'
NEW_GENERIC_UNIQUE_INDEX_NAME = 'idx_packages_on_project_id_name_version_unique_when_generic'
NEW_HELM_UNIQUE_INDEX_NAME = 'idx_packages_on_project_id_name_version_unique_when_helm'
def up
add_concurrent_index :packages_packages, [:project_id, :name, :version], unique: true, name: NEW_GO_UNIQUE_INDEX_NAME, where: 'package_type = 8 AND status != 4'
add_concurrent_index :packages_packages, [:project_id, :name, :version], unique: true, name: NEW_GENERIC_UNIQUE_INDEX_NAME, where: 'package_type = 7 AND status != 4'
add_concurrent_index :packages_packages, [:project_id, :name, :version], unique: true, name: NEW_HELM_UNIQUE_INDEX_NAME, where: 'package_type = 11 AND status != 4'
remove_concurrent_index_by_name :packages_packages, GO_UNIQUE_INDEX_NAME
remove_concurrent_index_by_name :packages_packages, GENERIC_UNIQUE_INDEX_NAME
remove_concurrent_index_by_name :packages_packages, HELM_UNIQUE_INDEX_NAME
end
def down
# no-op
# We can't guarantee that the old index can be recreated since it targets a set larger that the new index.
end
end
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