Query time 0.00036
JSON explain
{
"query_block": {
"select_id": 1,
"cost": 0.01705393,
"nested_loop": [
{
"read_sorted_file": {
"filesort": {
"sort_key": "a.position",
"table": {
"table_name": "a",
"access_type": "ref",
"possible_keys": ["PRIMARY", "c_status"],
"key": "c_status",
"key_length": "6",
"used_key_parts": ["product_id", "status"],
"ref": ["const", "const"],
"loops": 1,
"rows": 4,
"cost": 0.005726018,
"filtered": 100,
"index_condition": "a.`status` = 'A'",
"attached_condition": "a.product_id <=> 0 and a.`status` <=> 'A'"
}
}
}
},
{
"table": {
"table_name": "b",
"access_type": "eq_ref",
"possible_keys": ["PRIMARY"],
"key": "PRIMARY",
"key_length": "9",
"used_key_parts": ["option_id", "lang_code"],
"ref": ["cscart.a.option_id", "const"],
"loops": 4,
"rows": 1,
"cost": 0.007120904,
"filtered": 100,
"attached_condition": "trigcond(b.lang_code = 'de')"
}
},
{
"table": {
"table_name": "c",
"access_type": "ref",
"possible_keys": ["PRIMARY", "product_id"],
"key": "PRIMARY",
"key_length": "3",
"used_key_parts": ["option_id"],
"ref": ["cscart.a.option_id"],
"loops": 4,
"rows": 3,
"cost": 0.004207008,
"filtered": 36.36363602,
"attached_condition": "c.product_id in (2,12,107,118)",
"using_index": true
}
}
]
}
}