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# frozen_string_literal: true
class RemoveSamlProviderAndIdentitiesNonRootGroup < Gitlab::Database::Migration[2.1]
BATCH_SIZE = 500
disable_ddl_transaction!
restrict_gitlab_migration gitlab_schema: :gitlab_main
def up
each_batch_range('saml_providers', scope: ->(table) { table.all }, of: BATCH_SIZE) do |min, max|
execute <<~SQL
DELETE FROM identities
WHERE identities.saml_provider_id
IN
(
SELECT saml_providers.id FROM saml_providers
INNER JOIN namespaces ON namespaces.id=saml_providers.group_id
AND namespaces.type='Group' AND namespaces.parent_id IS NOT NULL
AND saml_providers.id BETWEEN #{min} AND #{max}
);
DELETE FROM saml_providers
USING namespaces
WHERE namespaces.id=saml_providers.group_id
AND namespaces.type='Group' AND namespaces.parent_id IS NOT NULL
AND saml_providers.id BETWEEN #{min} AND #{max};
SQL
end
end
def down
# noop
end
end
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