Query time 0.00085
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "104.71"
},
"nested_loop": [
{
"table": {
"table_name": "f",
"access_type": "ALL",
"possible_keys": [
"idx_group_id"
],
"rows_examined_per_scan": 13,
"rows_produced_per_join": 13,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.11",
"eval_cost": "2.60",
"prefix_cost": "4.71",
"data_read_per_join": "1K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
},
{
"table": {
"table_name": "g",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"id"
],
"key_length": "3",
"ref": [
"atulecarter_atul_demo1.f.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 13,
"filtered": "100.00",
"cost_info": {
"read_cost": "13.00",
"eval_cost": "2.60",
"prefix_cost": "20.31",
"data_read_per_join": "5K"
},
"used_columns": [
"id",
"code"
]
}
},
{
"table": {
"table_name": "p",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "3",
"ref": [
"atulecarter_atul_demo1.f.group_id"
],
"rows_examined_per_scan": 7,
"rows_produced_per_join": 103,
"filtered": "100.00",
"cost_info": {
"read_cost": "63.70",
"eval_cost": "20.70",
"prefix_cost": "104.71",
"data_read_per_join": "1K"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`atulecarter_atul_demo1`.`p`.`product_id` in (148,180,18,16,4,5,23,24,1,22,149,190,189,245,238,239,242,243,59,58,60,172,134,135,168,167,169,42,39,40,37,74,73,71,75,72,70,156,175,43,76,56,57,30,246,173,67,25,154,53,52,161,165,166,86,106,105,101,33,32,163,155,55,69,184,183,133,132,125,120,146,147,117,113,157,68,29,6,8,14,9,10,19,21,50,51,49,48,54,153,164,248,65,64,63,62))"
}
}
]
}
}