Query time 0.00076
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "2.11"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"nested_loop": [
{
"table": {
"table_name": "cscart_product_filters",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"feature_id"
],
"key": "feature_id",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"rows_examined_per_scan": 2,
"rows_produced_per_join": 2,
"filtered": "100.00",
"index_condition": "(`s2cart`.`cscart_product_filters`.`feature_id` in (8672,3353))",
"cost_info": {
"read_cost": "1.21",
"eval_cost": "0.20",
"prefix_cost": "1.41",
"data_read_per_join": "144"
},
"used_columns": [
"filter_id",
"feature_id",
"position"
]
}
},
{
"table": {
"table_name": "cscart_product_filter_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"filter_id",
"lang_code"
],
"key_length": "9",
"ref": [
"s2cart.cscart_product_filters.filter_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.50",
"eval_cost": "0.20",
"prefix_cost": "2.11",
"data_read_per_join": "1K"
},
"used_columns": [
"filter_id",
"lang_code",
"filter"
]
}
}
]
}
}
}