Query time 0.00177
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "153.74"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "29.40"
},
"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": 55,
"rows_produced_per_join": 55,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "12.07",
"eval_cost": "11.00",
"prefix_cost": "23.07",
"data_read_per_join": "440"
},
"used_columns": [
"option_id",
"product_id"
],
"attached_condition": "((`webmarco`.`c`.`product_id` in (262462,220026,220035,220028,220016,220024,220020,309477,309473,309471,309474,309478,309476,309469,309470,309475,309472,427782,159862,286468,286472,286478,286465,286467,286475,286479,286473,286469,286466,286470,286471,286474,285940,285937,285942,286476,285945,285939,285938,285943,285941,285946,285966,285970,285968,285971,285967,285969,159865,173787,159861,159863,159864,173789,173763)) 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": 29,
"filtered": "53.45",
"cost_info": {
"read_cost": "55.00",
"eval_cost": "5.88",
"prefix_cost": "89.07",
"data_read_per_join": "89K"
},
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.40",
"eval_cost": "5.88",
"prefix_cost": "124.35",
"data_read_per_join": "99K"
},
"used_columns": [
"option_id",
"lang_code",
"option_name",
"internal_option_name",
"option_text",
"description",
"comment",
"inner_hint",
"incorrect_message"
]
}
}
]
}
}
}