Query time 0.00082
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "1.05"
},
"ordering_operation": {
"using_filesort": true,
"nested_loop": [
{
"table": {
"table_name": "a",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"c_status"
],
"key": "c_status",
"used_key_parts": [
"product_id",
"status"
],
"key_length": "6",
"ref": [
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.25",
"eval_cost": "0.10",
"prefix_cost": "0.35",
"data_read_per_join": "2K"
},
"used_columns": [
"option_id",
"product_id",
"company_id",
"option_type",
"regexp",
"required",
"multiupload",
"allowed_extensions",
"max_file_size",
"missing_variants_handling",
"status",
"position",
"value"
]
}
},
{
"table": {
"table_name": "c",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"product_id"
],
"key": "PRIMARY",
"used_key_parts": [
"option_id"
],
"key_length": "3",
"ref": [
"nuie_scalesta_net.a.option_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "0.25",
"eval_cost": "0.10",
"prefix_cost": "0.70",
"data_read_per_join": "8"
},
"used_columns": [
"option_id",
"product_id"
],
"attached_condition": "(`nuie_scalesta_net`.`c`.`product_id` in (92766,92767,92768,92775,92776,92777,92778,92779,92780,92781,92782,92783,92784,92785,92786,92787,92788,92789,92790,92791,92798,92799,92800,92801,92802,92803,92804,92805,92806,92807,92808,92809,92810,92811,92812,92813,92814,92821,92822,92823,92824,92825,92826,92827,92828,92829,92830,92831,92832,92833,92834,92835,92836,92837,92844,92845,92846,92847,92848,92849,92850,92851,92852,92853,92854,92855,92856,92857,92858,92859,92860,92861,92862,92863,92864,92865,92866,92867,92868,92869,92870,92871,92872,92873,92874,92875,92876,92877,92878,92879,92880,92881,92882,92883,92884,92885))"
}
},
{
"table": {
"table_name": "b",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"option_id",
"lang_code"
],
"key_length": "9",
"ref": [
"nuie_scalesta_net.a.option_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.25",
"eval_cost": "0.10",
"prefix_cost": "1.05",
"data_read_per_join": "3K"
},
"used_columns": [
"option_id",
"lang_code",
"option_name",
"internal_option_name",
"option_text",
"description",
"comment",
"inner_hint",
"incorrect_message"
]
}
}
]
}
}
}