Query time 0.00106
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "498.50"
},
"nested_loop": [
{
"table": {
"table_name": "p",
"access_type": "ALL",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"rows_examined_per_scan": 922,
"rows_produced_per_join": 128,
"filtered": "13.88",
"cost_info": {
"read_cost": "165.70",
"eval_cost": "25.60",
"prefix_cost": "191.30",
"data_read_per_join": "2K"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`portal`.`p`.`product_id` in (37513,37514,37515,37516,37520,37521,37522,37523,37524,37525,37526,37527,37528,37529,37530,37531,37532,37533,37534,37535,37536,37537,37538,37539,37540,37541,37542,37543,37544,37545,37546,37547,37548,37549,37550,37551,37552,37553,37554,37555,37557,37558,37559,37560,37561,37562,37563,37820,37821,37822,37823,37824,37825,37826,37827,37828,37829,37830,37831,37832,37833,37834,37835,37836,37837,37838,37839,37840,37841,37842,37843,37844,37845,37846,37847,37848,37849,37850,37851,37852,37853,37854,37855,37856,37858,37859,37860,37861,37862,37863,37864,37865,37866,37867,37868,37869,37870,37871,37872,37873,37874,37875,37877,37878,37879,37880,37881,37882,37883,37884,37885,37886,37887,37888,37889,37890,37891,37892,37893,37894,37895,37896,37897,38150,38151,38152,38155,38156))"
}
},
{
"table": {
"table_name": "g",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"id"
],
"key_length": "4",
"ref": [
"portal.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 128,
"filtered": "100.00",
"cost_info": {
"read_cost": "128.00",
"eval_cost": "25.60",
"prefix_cost": "344.90",
"data_read_per_join": "98K"
},
"used_columns": [
"id",
"code"
]
}
},
{
"table": {
"table_name": "f",
"access_type": "ref",
"possible_keys": [
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "4",
"ref": [
"portal.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 128,
"filtered": "100.00",
"cost_info": {
"read_cost": "128.00",
"eval_cost": "25.60",
"prefix_cost": "498.50",
"data_read_per_join": "14K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
}
]
}
}