Query time 0.00157
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "83.51"
},
"grouping_operation": {
"using_filesort": false,
"nested_loop": [
{
"table": {
"table_name": "cscart_products_categories",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"pt"
],
"key": "pt",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 65,
"rows_produced_per_join": 65,
"filtered": "100.00",
"index_condition": "(`cscartdb`.`cscart_products_categories`.`product_id` in (15481,16046,16055,16100,16036,16037,16098,16035,16045,16105,16080,16077,16094,16109,16086,16084,16103,16101,16106,26973,16052,16070,16108,16048,16067,16044,16074,16112,28166,16056,41407,16081,27372,28288,27002))",
"cost_info": {
"read_cost": "31.51",
"eval_cost": "6.50",
"prefix_cost": "38.01",
"data_read_per_join": "1K"
},
"used_columns": [
"product_id",
"category_id",
"link_type"
]
}
},
{
"table": {
"table_name": "product_position_source",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"pt"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id",
"product_id"
],
"key_length": "6",
"ref": [
"const",
"cscartdb.cscart_products_categories.product_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 65,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.25",
"eval_cost": "6.50",
"prefix_cost": "60.76",
"data_read_per_join": "1K"
},
"used_columns": [
"product_id",
"category_id",
"position"
]
}
},
{
"table": {
"table_name": "cscart_categories",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"c_status",
"p_category_id"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id"
],
"key_length": "3",
"ref": [
"cscartdb.cscart_products_categories.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 3,
"filtered": "5.00",
"cost_info": {
"read_cost": "16.25",
"eval_cost": "0.33",
"prefix_cost": "83.51",
"data_read_per_join": "10K"
},
"used_columns": [
"category_id",
"storefront_id",
"usergroup_ids",
"status"
],
"attached_condition": "((`cscartdb`.`cscart_categories`.`storefront_id` in (0,1)) and ((`cscartdb`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`cscartdb`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`cscartdb`.`cscart_categories`.`usergroup_ids`))) and (`cscartdb`.`cscart_categories`.`status` in ('A','H')))"
}
}
]
}
}
}
Result
product_id |
category_ids |
position |
15481 |
559,100M |
0 |
16035 |
602,100M |
0 |
16036 |
471,100M |
0 |
16037 |
603,100M |
0 |
16044 |
602,100M |
0 |
16045 |
599,100M |
0 |
16046 |
599,100M |
0 |
16048 |
603,100M |
0 |
16052 |
603,100M |
0 |
16055 |
602,100M |
0 |
16056 |
602,100M |
0 |
16067 |
602,100M |
0 |
16070 |
604,100M |
0 |
16074 |
604,100M |
0 |
16077 |
602,100M |
0 |
16080 |
599,100M |
0 |
16081 |
603,100M |
0 |
16084 |
599,100M |
0 |
16086 |
602,100M |
0 |
16094 |
599,100M |
0 |
16098 |
602,100M |
0 |
16100 |
604,100M |
0 |
16101 |
599,100M |
0 |
16103 |
602,100M |
0 |
16105 |
602,100M |
0 |
16106 |
602,100M |
0 |
16108 |
604,100M |
0 |
16109 |
602,100M |
0 |
16112 |
599,100M |
0 |
26973 |
602,100M |
0 |
27002 |
602,100M |
0 |
27372 |
599,100M |
0 |
28166 |
599,100M |
0 |
28288 |
602,100M |
0 |
41407 |
602,100M |
0 |