sqlite> select * from layer_groups_annotation_layers;
1|layer_group_01|anno_layer_01
2|layer_group_01|anno_layer_02
3|layer_group_02|anno_layer_03
4|layer_group_03|anno_layer_04
5|layer_group_01|anno_layer_04


sqlite> select layerName, 'imageLayer', groupName from layer_groups_annotation_layers group by layerName;
anno_layer_01|imageLayer|layer_group_01
anno_layer_02|imageLayer|layer_group_01
anno_layer_03|imageLayer|layer_group_02
anno_layer_04|imageLayer|layer_group_01