Query time 0.00164
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "5.59"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "2.77"
},
"nested_loop": [
{
"table": {
"table_name": "c",
"access_type": "index",
"possible_keys": [
"PRIMARY",
"product_id"
],
"key": "PRIMARY",
"used_key_parts": [
"option_id",
"product_id"
],
"key_length": "6",
"rows_examined_per_scan": 3,
"rows_produced_per_join": 3,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "0.50",
"eval_cost": "0.30",
"prefix_cost": "0.80",
"data_read_per_join": "24"
},
"used_columns": [
"option_id",
"product_id"
],
"attached_condition": "((`softwarepirmam_hewadelivard_cscart_4`.`c`.`product_id` in (2603,3136,2587,2761,2694,3096,2723,2742,3556,2593,3104,2618,2828,2613,2619,2872,2704,3593,4888,3423,5168,2739,3291,5998,2841,5155,3876,2561,3812,5124,6007,2865,2734,3369,6005,6019,3139,5157,2700,5121,5929,2701,6013,2797,6271,5938,5980,4886,4885,8243,5933,6006,5981,6024,5983,8603,10022,8272,7878,8879,7880,8458)) and (`softwarepirmam_hewadelivard_cscart_4`.`c`.`option_id` is not null))"
}
},
{
"table": {
"table_name": "a",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"c_status"
],
"key": "PRIMARY",
"used_key_parts": [
"option_id"
],
"key_length": "3",
"ref": [
"softwarepirmam_hewadelivard_cscart_4.c.option_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "92.31",
"cost_info": {
"read_cost": "0.75",
"eval_cost": "0.28",
"prefix_cost": "1.85",
"data_read_per_join": "6K"
},
"used_columns": [
"option_id",
"product_id",
"company_id",
"option_type",
"regexp",
"required",
"multiupload",
"allowed_extensions",
"max_file_size",
"missing_variants_handling",
"status",
"position",
"value"
],
"attached_condition": "((`softwarepirmam_hewadelivard_cscart_4`.`a`.`product_id` = 0) and (`softwarepirmam_hewadelivard_cscart_4`.`a`.`status` = 'A'))"
}
},
{
"table": {
"table_name": "b",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"option_id",
"lang_code"
],
"key_length": "9",
"ref": [
"softwarepirmam_hewadelivard_cscart_4.c.option_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.69",
"eval_cost": "0.28",
"prefix_cost": "2.82",
"data_read_per_join": "9K"
},
"used_columns": [
"option_id",
"lang_code",
"option_name",
"internal_option_name",
"option_text",
"description",
"comment",
"inner_hint",
"incorrect_message"
]
}
}
]
}
}
}