Query time 0.00089
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "110.61"
},
"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": 31,
"rows_produced_per_join": 31,
"filtered": "100.00",
"index_condition": "(`portal`.`q_products_categories`.`product_id` in (2423,2424,1257,1258,1259,1260,1261,1262,1263,1264,1228,1236,1252,1253,1254,1209,1169,1170,1171,1172,1173,1174,1175,1176,1177,1178,1179,1180,1181,1182))",
"cost_info": {
"read_cost": "67.21",
"eval_cost": "6.20",
"prefix_cost": "73.41",
"data_read_per_join": "496"
},
"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": 6,
"filtered": "20.00",
"cost_info": {
"read_cost": "31.00",
"eval_cost": "1.24",
"prefix_cost": "110.61",
"data_read_per_join": "16K"
},
"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 |
1169 |
100,117M |
1170 |
100,117M |
1171 |
100,117M |
1172 |
10,117M |
1173 |
10,134M |
1174 |
135,10M |
1175 |
130,11M |
1176 |
130,11M |
1177 |
130M |
1178 |
130M |
1179 |
131M |
1180 |
131M |
1181 |
130M |
1182 |
130M |
1209 |
366M |
1228 |
140M |
1236 |
106M |
1252 |
366M |
1253 |
366M |
1254 |
366M |
1257 |
134M |
1258 |
137,135,134M |
1259 |
134M |
1260 |
106M |
1261 |
106M |
1262 |
134M |
1263 |
134M |
1264 |
145M |
2423 |
193M |
2424 |
193M |