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# frozen_string_literal: true
class UpdateIssuesRelativePositionIndexes < Gitlab::Database::Migration[1.0]
disable_ddl_transaction!
RELATIVE_POSITION_INDEX_NAME = 'idx_issues_on_project_id_and_rel_asc_and_id'
RELATIVE_POSITION_STATE_INDEX_NAME = 'idx_issues_on_project_id_and_rel_position_and_state_id_and_id'
NEW_RELATIVE_POSITION_STATE_INDEX_NAME = 'idx_issues_on_project_id_and_rel_position_and_id_and_state_id'
def up
add_concurrent_index :issues, [:project_id, :relative_position, :id, :state_id], name: NEW_RELATIVE_POSITION_STATE_INDEX_NAME
remove_concurrent_index_by_name :issues, RELATIVE_POSITION_INDEX_NAME
remove_concurrent_index_by_name :issues, RELATIVE_POSITION_STATE_INDEX_NAME
end
def down
add_concurrent_index :issues, [:project_id, :relative_position, :state_id, :id], order: { id: :desc }, name: RELATIVE_POSITION_STATE_INDEX_NAME
add_concurrent_index :issues, [:project_id, :relative_position, :id], name: RELATIVE_POSITION_INDEX_NAME
remove_concurrent_index_by_name :issues, NEW_RELATIVE_POSITION_STATE_INDEX_NAME
end
end
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