Query time 0.00234
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "259.27"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "49.71"
},
"nested_loop": [
{
"table": {
"table_name": "c",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"product_id"
],
"key": "product_id",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 93,
"rows_produced_per_join": 93,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "19.71",
"eval_cost": "18.60",
"prefix_cost": "38.31",
"data_read_per_join": "744"
},
"used_columns": [
"option_id",
"product_id"
],
"attached_condition": "((`webmarco`.`c`.`product_id` in (339432,339433,339438,339434,339439,339445,262432,339440,339441,264700,339446,339447,339449,339689,339448,339450,339435,339442,339443,339436,339451,339437,339444,339476,339456,339550,339461,339454,339547,339471,339545,339474,339548,339470,339544,339455,339543,339549,339698,339472,339542,339487,339480,339475,339688,339546,339687,339690,339462,339700,339811,339459,339679,339473,339813,339678,339465,339457,339477,339541,339489,339699,339469,339458,339482,339685,339468,339453,339730,339731,339478,339463,339709,339467,339460,339808,339464,339806,339810,339701,339807,339479,339452,339729,339485,339809,339812,339484,339483,339466,339486,339488,339481)) and (`webmarco`.`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": [
"webmarco.c.option_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 49,
"filtered": "53.45",
"cost_info": {
"read_cost": "93.00",
"eval_cost": "9.94",
"prefix_cost": "149.91",
"data_read_per_join": "151K"
},
"used_columns": [
"option_id",
"product_id",
"company_id",
"option_type",
"inventory",
"regexp",
"required",
"multiupload",
"allowed_extensions",
"max_file_size",
"missing_variants_handling",
"status",
"position",
"value",
"google_export_name_option"
],
"attached_condition": "((`webmarco`.`a`.`product_id` = 0) and (`webmarco`.`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": [
"webmarco.c.option_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 49,
"filtered": "100.00",
"cost_info": {
"read_cost": "49.71",
"eval_cost": "9.94",
"prefix_cost": "209.56",
"data_read_per_join": "168K"
},
"used_columns": [
"option_id",
"lang_code",
"option_name",
"internal_option_name",
"option_text",
"description",
"comment",
"inner_hint",
"incorrect_message"
]
}
}
]
}
}
}