Query time 0.00511
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "65.49"
},
"nested_loop": [
{
"table": {
"table_name": "inventory",
"access_type": "system",
"possible_keys": [
"pc"
],
"rows_examined_per_scan": 0,
"rows_produced_per_join": 1,
"filtered": "0.00",
"const_row_not_found": true,
"cost_info": {
"read_cost": "0.00",
"eval_cost": "0.20",
"prefix_cost": "0.00",
"data_read_per_join": "976"
},
"used_columns": [
"product_id",
"amount"
]
}
},
{
"table": {
"table_name": "companies",
"access_type": "const",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"company_id"
],
"key_length": "4",
"ref": [
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.00",
"eval_cost": "0.20",
"prefix_cost": "0.00",
"data_read_per_join": "5K"
},
"used_columns": [
"company_id",
"status"
]
}
},
{
"table": {
"table_name": "q_categories",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"c_status",
"p_category_id"
],
"key": "p_category_id",
"used_key_parts": [
"category_id"
],
"key_length": "3",
"rows_examined_per_scan": 3,
"rows_produced_per_join": 0,
"filtered": "20.00",
"using_index": true,
"cost_info": {
"read_cost": "4.09",
"eval_cost": "0.12",
"prefix_cost": "4.21",
"data_read_per_join": "1K"
},
"used_columns": [
"category_id",
"usergroup_ids",
"status"
],
"attached_condition": "((`portal`.`q_categories`.`category_id` in (191,418,419)) and ((`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')))"
}
},
{
"table": {
"table_name": "products_categories",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"pt"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id"
],
"key_length": "3",
"ref": [
"portal.q_categories.category_id"
],
"rows_examined_per_scan": 156,
"rows_produced_per_join": 93,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "2.93",
"eval_cost": "18.72",
"prefix_cost": "25.86",
"data_read_per_join": "1K"
},
"used_columns": [
"product_id",
"category_id"
],
"attached_condition": "(`portal`.`products_categories`.`product_id` is not null)"
}
},
{
"table": {
"table_name": "products",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"status"
],
"key": "PRIMARY",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"ref": [
"portal.products_categories.product_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 8,
"filtered": "9.31",
"cost_info": {
"read_cost": "0.00",
"eval_cost": "1.74",
"prefix_cost": "44.58",
"data_read_per_join": "51K"
},
"used_columns": [
"product_id",
"status",
"company_id",
"amount",
"usergroup_ids",
"tracking"
],
"attached_condition": "((`portal`.`products`.`company_id` = 21) and (`portal`.`products`.`status` = 'A') and (case `portal`.`products`.`tracking` when 'O' then <cache>((NULL > 0)) when 'B' then (`portal`.`products`.`amount` > 0) else 1 end) and ((`portal`.`products`.`usergroup_ids` = '') or find_in_set(0,`portal`.`products`.`usergroup_ids`) or find_in_set(1,`portal`.`products`.`usergroup_ids`)))"
}
},
{
"table": {
"table_name": "q_product_prices",
"access_type": "ref",
"possible_keys": [
"usergroup",
"product_id",
"lower_limit",
"usergroup_id"
],
"key": "usergroup",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"ref": [
"portal.products_categories.product_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 8,
"filtered": "99.95",
"index_condition": "((`portal`.`q_product_prices`.`lower_limit` = 1) and (`portal`.`q_product_prices`.`usergroup_id` in (0,0,1)))",
"cost_info": {
"read_cost": "8.72",
"eval_cost": "1.74",
"prefix_cost": "55.04",
"data_read_per_join": "209"
},
"used_columns": [
"product_id",
"price",
"lower_limit",
"usergroup_id"
]
}
},
{
"table": {
"table_name": "prices_2",
"access_type": "ref",
"possible_keys": [
"usergroup",
"product_id",
"lower_limit",
"usergroup_id"
],
"key": "usergroup",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"ref": [
"portal.products_categories.product_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "10.00",
"not_exists": true,
"cost_info": {
"read_cost": "8.71",
"eval_cost": "0.17",
"prefix_cost": "65.50",
"data_read_per_join": "20"
},
"used_columns": [
"product_id",
"price",
"lower_limit",
"usergroup_id"
],
"attached_condition": "(<if>(found_match(prices_2), isnull(`portal`.`prices_2`.`price`), true) and <if>(is_not_null_compl(prices_2), ((`portal`.`prices_2`.`lower_limit` = 1) and (`portal`.`q_product_prices`.`price` > `portal`.`prices_2`.`price`) and (`portal`.`prices_2`.`usergroup_id` in (0,0,1))), true))"
}
}
]
}
}
Result
min |
max |
19.00 |
122.00 |