Query time 0.00097
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "430.06"
},
"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": 100,
"rows_produced_per_join": 100,
"filtered": "100.00",
"cost_info": {
"read_cost": "120.12",
"eval_cost": "20.00",
"prefix_cost": "140.12",
"data_read_per_join": "1K"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`webmarco`.`p`.`product_id` in (350511,355422,350579,355405,350381,350420,350306,354322,350347,354323,350342,350368,355618,350283,355620,354738,350435,355619,350504,355446,350226,350335,350442,350448,350468,355421,354526,350345,350456,356842,350385,350513,355389,350282,350519,355408,355412,350417,358345,353702,350337,350412,358351,350362,355406,350462,353716,350583,354523,350375,358343,350352,353726,350361,353701,350268,350377,350410,350411,354743,355429,355425,350346,355418,358333,350313,350373,353712,353723,355415,355417,355438,354524,350379,350380,350388,355396,355409,355439,355420,350382,350403,354525,358348,358349,350378,355395,353105,353813,350589,355411,358350,350393,350311,355390,358353,358347,350384,350310,350421))"
}
},
{
"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": 100,
"filtered": "100.00",
"cost_info": {
"read_cost": "100.00",
"eval_cost": "20.00",
"prefix_cost": "260.12",
"data_read_per_join": "39K"
},
"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": 141,
"filtered": "100.00",
"cost_info": {
"read_cost": "141.62",
"eval_cost": "28.32",
"prefix_cost": "430.06",
"data_read_per_join": "14K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
}
]
}
}