{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "78.21"
},
"table": {
"table_name": "q_categories",
"access_type": "range",
"possible_keys": [
"parent"
],
"key": "parent",
"used_key_parts": [
"parent_id"
],
"key_length": "3",
"rows_examined_per_scan": 48,
"rows_produced_per_join": 48,
"filtered": "100.00",
"index_condition": "(`portal`.`q_categories`.`parent_id` in (3,10,11,138,144,245,405,432,578,589,617))",
"cost_info": {
"read_cost": "68.61",
"eval_cost": "9.60",
"prefix_cost": "78.21",
"data_read_per_join": "126K"
},
"used_columns": [
"category_id",
"parent_id"
]
}
}
}
category_id | parent_id |
---|---|
4 | 3 |
5 | 3 |
39 | 3 |
134 | 10 |
135 | 10 |
136 | 10 |
137 | 10 |
130 | 11 |
131 | 11 |
132 | 11 |
133 | 11 |
523 | 11 |
139 | 138 |
140 | 138 |
141 | 138 |
142 | 138 |
143 | 138 |
145 | 144 |
100 | 144 |
146 | 144 |
366 | 144 |
400 | 144 |
458 | 144 |
549 | 144 |
585 | 144 |
246 | 245 |
247 | 245 |
577 | 578 |
590 | 589 |
591 | 589 |
592 | 589 |
593 | 589 |
594 | 589 |
616 | 589 |