Grouped rows id inv list
2920000001|2920000001 2920000001
2920000002|2920000002 2920000003,2920000002
2920000003|2920000002 2920000004,2920000005
2920000004|2920000003 2920000006
2920000005|2920000004 2920000007
2920000006|2920000005 2920000009,2920000008
2920000007|2920000005 2920000010,2920000011
2920000008|2920000006 2920000013,2920000012