{
"query_block": {
"select_id": 1,
"nested_loop": [
{
"table": {
"table_name": "b",
"access_type": "const",
"possible_keys": ["PRIMARY", "p_category_id"],
"key": "PRIMARY",
"key_length": "3",
"used_key_parts": ["category_id"],
"ref": ["const"],
"rows": 1,
"filtered": 100
}
},
{
"table": {
"table_name": "a",
"access_type": "ALL",
"rows": 18,
"filtered": 100,
"attached_condition": "a.id_path like <cache>(concat('267','/%'))"
}
}
]
}
}