Query time 0.00100
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 (87192,87209,87226,87231,84642,84510,84576,84624,84558,85015,85021,85027,85033,84312,84643,88780,84625,84511,84577,84294,88778,88779,89212,89225,89238,88686,88733,84493,84559,88177,88225,88777,88684,88685,88731,88732,87454,88683,88730,89038,85723,85740,85750,85760,88504,91446,91460,88201,88213,88578,84313,85720,87507,87523,88455,88473,88489,85665,85685,85697,85709,84295,89106,89113,89037,89450,89463,89471,89479,85661,88539,88576,88577,89447,88976,88993,89036,88575,89840,89892,89965,91531,88975,89034,87540,89105,88423,88527,84771,84784,84793,89788,84766,93529,93530,93531))"
}
},
{
"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"
]
}
}
]
}
}
}