Query time 0.00263
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "236.54"
},
"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": 55,
"rows_produced_per_join": 55,
"filtered": "100.00",
"cost_info": {
"read_cost": "66.07",
"eval_cost": "11.00",
"prefix_cost": "77.07",
"data_read_per_join": "880"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`webmarco`.`p`.`product_id` in (262462,220026,220035,220028,220016,220024,220020,309477,309473,309471,309474,309478,309476,309469,309470,309475,309472,427782,159862,286468,286472,286478,286465,286467,286475,286479,286473,286469,286466,286470,286471,286474,285940,285937,285942,286476,285945,285939,285938,285943,285941,285946,285966,285970,285968,285971,285967,285969,159865,173787,159861,159863,159864,173789,173763))"
}
},
{
"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": 55,
"filtered": "100.00",
"cost_info": {
"read_cost": "55.00",
"eval_cost": "11.00",
"prefix_cost": "143.07",
"data_read_per_join": "21K"
},
"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": 77,
"filtered": "100.00",
"cost_info": {
"read_cost": "77.89",
"eval_cost": "15.58",
"prefix_cost": "236.54",
"data_read_per_join": "7K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
}
]
}
}