Query time 0.00086
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "1.80"
},
"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": "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": "0.70",
"data_read_per_join": "3K"
},
"used_columns": [
"option_id",
"lang_code",
"option_name",
"internal_option_name",
"option_text",
"description",
"comment",
"inner_hint",
"incorrect_message"
]
}
},
{
"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": "1.00",
"eval_cost": "0.10",
"prefix_cost": "1.80",
"data_read_per_join": "8"
},
"used_columns": [
"option_id",
"product_id"
],
"attached_condition": "(`nuie_scalesta_net`.`c`.`product_id` in (84542,84607,84608,84671,84672,84645,84524,84590,84338,84339,84326,84539,84605,87392,87393,84343,84344,84627,87390,84540,84606,84513,84579,84670,87405,84342,84341,86753,86754,87401,84495,84561,87399,84538,84604,84340,84315,86804,86805,84297,85662,85682,85694,85706,87431,85658,85667,85687,85699,85711,87421,87422,88546,87430,85675,87426,87427,88544,92554,92597,92598,92599,92600,92601,92602,92620,92621,92622,92623,92624,92625,92643,92644,92645,92646,92647,92648,92666,92667,92668,92669,92670,92671,92689,92690,92691,92692,92693,92694,92735,92736,92737,92738,92739,92740,92769))"
}
}
]
}
}
}