Query time 0.00094
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "167.21"
},
"grouping_operation": {
"using_filesort": false,
"nested_loop": [
{
"table": {
"table_name": "q_products_categories",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"pt"
],
"key": "pt",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 52,
"rows_produced_per_join": 52,
"filtered": "100.00",
"index_condition": "(`portal`.`q_products_categories`.`product_id` in (9170,9171,9172,9173,9174,9175,9176,9177,9178,9179,9180,9181,9182,9183,9185,9186,9187,9188,9189,9190,9191,9192,9193,9194,9195,9196,9197,9198,9199,9200,9201,9202))",
"cost_info": {
"read_cost": "94.41",
"eval_cost": "10.40",
"prefix_cost": "104.81",
"data_read_per_join": "832"
},
"used_columns": [
"product_id",
"category_id",
"link_type"
]
}
},
{
"table": {
"table_name": "q_categories",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"c_status",
"p_category_id"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id"
],
"key_length": "3",
"ref": [
"portal.q_products_categories.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 10,
"filtered": "20.00",
"cost_info": {
"read_cost": "52.00",
"eval_cost": "2.08",
"prefix_cost": "167.21",
"data_read_per_join": "27K"
},
"used_columns": [
"category_id",
"usergroup_ids",
"status"
],
"attached_condition": "(((`portal`.`q_categories`.`usergroup_ids` = '') or find_in_set(0,`portal`.`q_categories`.`usergroup_ids`) or find_in_set(1,`portal`.`q_categories`.`usergroup_ids`)) and (`portal`.`q_categories`.`status` in ('A','H')))"
}
}
]
}
}
}
Result
product_id |
category_ids |
9170 |
200M |
9171 |
200M |
9172 |
200M |
9173 |
200M |
9174 |
200M |
9175 |
200M |
9176 |
200M |
9177 |
200M |
9178 |
200M |
9179 |
200M |
9180 |
429M |
9181 |
429M |
9182 |
429M |
9183 |
429M |
9185 |
429M |
9186 |
429M |
9187 |
429M |
9188 |
418M |
9189 |
418M |
9190 |
418M |
9191 |
418M |
9192 |
418M |
9193 |
418M |
9194 |
429M |
9195 |
554M |
9196 |
554M |
9197 |
554M |
9198 |
554M |
9199 |
554M |
9200 |
554M |
9201 |
554M |
9202 |
554M |