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# frozen_string_literal: true
class AddProjectIdLowerNameIndexRemoveOldIndex < Gitlab::Database::Migration[2.0]
INDEX_NAME = 'index_im_timeline_event_tags_name_project_id'
NEW_INDEX_NAME = 'index_im_timeline_event_tags_on_lower_name_and_project_id'
disable_ddl_transaction!
def up
# Add new index
add_concurrent_index :incident_management_timeline_event_tags, 'project_id, LOWER(name)',
unique: true, name: NEW_INDEX_NAME
# Remove old index
remove_concurrent_index_by_name :incident_management_timeline_event_tags, INDEX_NAME
end
def down
# Add old index
add_concurrent_index :incident_management_timeline_event_tags, [:project_id, :name],
unique: true, name: INDEX_NAME
# Remove new index
remove_concurrent_index_by_name :incident_management_timeline_event_tags, NEW_INDEX_NAME
end
end
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