Query time 0.00043
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "5.21"
},
"nested_loop": [
{
"table": {
"table_name": "cscart_product_features",
"access_type": "range",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"rows_examined_per_scan": 2,
"rows_produced_per_join": 0,
"filtered": "16.67",
"index_condition": "(`ea201_diorama`.`cscart_product_features`.`feature_id` in (5,1))",
"cost_info": {
"read_cost": "4.74",
"eval_cost": "0.07",
"prefix_cost": "4.81",
"data_read_per_join": "146"
},
"used_columns": [
"feature_id",
"feature_type"
],
"attached_condition": "(`ea201_diorama`.`cscart_product_features`.`feature_type` = 'E')"
}
},
{
"table": {
"table_name": "cscart_ult_objects_sharing",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"share_object_id",
"share_company_id",
"share_object_type"
],
"key_length": "159",
"ref": [
"ea201_diorama.cscart_product_features.feature_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "0.33",
"eval_cost": "0.07",
"prefix_cost": "5.21",
"data_read_per_join": "53"
},
"used_columns": [
"share_company_id",
"share_object_id",
"share_object_type"
],
"attached_condition": "(`ea201_diorama`.`cscart_ult_objects_sharing`.`share_object_id` = `ea201_diorama`.`cscart_product_features`.`feature_id`)"
}
}
]
}
}