Query time 0.00085
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "141.93"
},
"nested_loop": [
{
"table": {
"table_name": "p",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "PRIMARY",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 33,
"rows_produced_per_join": 33,
"filtered": "100.00",
"cost_info": {
"read_cost": "39.65",
"eval_cost": "6.60",
"prefix_cost": "46.25",
"data_read_per_join": "528"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`webmarco`.`p`.`product_id` in (81610,81595,81654,81637,81619,81590,81662,81649,81632,81706,81615,81639,81697,81652,81622,81660,81669,81693,81628,81700,81606,81644,81703,81601,81687,81679,81666,81683,139611,81689,81674,151100,151062))"
}
},
{
"table": {
"table_name": "g",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"id"
],
"key_length": "3",
"ref": [
"webmarco.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 33,
"filtered": "100.00",
"cost_info": {
"read_cost": "33.00",
"eval_cost": "6.60",
"prefix_cost": "85.85",
"data_read_per_join": "12K"
},
"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": "3",
"ref": [
"webmarco.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 46,
"filtered": "100.00",
"cost_info": {
"read_cost": "46.74",
"eval_cost": "9.35",
"prefix_cost": "141.93",
"data_read_per_join": "4K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
}
]
}
}