Query time 0.00058
    
    
            JSON explain
        {
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "31.04"
    },
    "grouping_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "0.35"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_categories",
            "access_type": "ALL",
            "possible_keys": [
              "PRIMARY",
              "c_status",
              "p_category_id"
            ],
            "rows_examined_per_scan": 83,
            "rows_produced_per_join": 3,
            "filtered": "4.00",
            "cost_info": {
              "read_cost": "19.42",
              "eval_cost": "0.66",
              "prefix_cost": "20.08",
              "data_read_per_join": "8K"
            },
            "used_columns": [
              "category_id",
              "storefront_id",
              "usergroup_ids",
              "status"
            ],
            "attached_condition": "((`atulecarter_atul_demo5`.`cscart_categories`.`storefront_id` in (0,1)) and ((`atulecarter_atul_demo5`.`cscart_categories`.`usergroup_ids` = '') or find_in_set(0,`atulecarter_atul_demo5`.`cscart_categories`.`usergroup_ids`) or find_in_set(1,`atulecarter_atul_demo5`.`cscart_categories`.`usergroup_ids`)) and (`atulecarter_atul_demo5`.`cscart_categories`.`status` in ('A','H')))"
          }
        },
        {
          "table": {
            "table_name": "cscart_products_categories",
            "access_type": "ref",
            "possible_keys": [
              "PRIMARY",
              "pt"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id"
            ],
            "key_length": "3",
            "ref": [
              "atulecarter_atul_demo5.cscart_categories.category_id"
            ],
            "rows_examined_per_scan": 2,
            "rows_produced_per_join": 0,
            "filtered": "5.24",
            "index_condition": "(`atulecarter_atul_demo5`.`cscart_products_categories`.`product_id` in (199,198,201,192,195,191,196,197,200,202,203,204,194))",
            "cost_info": {
              "read_cost": "8.86",
              "eval_cost": "0.07",
              "prefix_cost": "30.27",
              "data_read_per_join": "5"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "link_type"
            ]
          }
        },
        {
          "table": {
            "table_name": "product_position_source",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "pt"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id",
              "product_id"
            ],
            "key_length": "6",
            "ref": [
              "const",
              "atulecarter_atul_demo5.cscart_products_categories.product_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.35",
              "eval_cost": "0.07",
              "prefix_cost": "30.69",
              "data_read_per_join": "5"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "position"
            ]
          }
        }
      ]
    }
  }
}
    
            
            
                Result
                                    
                                                    | product_id | category_ids | position | 
                                            
                                                            | 191 | 231M |  | 
                                            
                                                            | 192 | 232M |  | 
                                            
                                                            | 194 | 232M |  | 
                                            
                                                            | 195 | 232M |  | 
                                            
                                                            | 196 | 232M |  | 
                                            
                                                            | 197 | 229M,231 |  | 
                                            
                                                            | 198 | 229M |  | 
                                            
                                                            | 199 | 229M |  | 
                                            
                                                            | 200 | 230M |  | 
                                            
                                                            | 201 | 230M |  | 
                                            
                                                            | 202 | 230M |  | 
                                            
                                                            | 203 | 230M |  | 
                                            
                                                            | 204 | 232M |  |