{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "1.00"
},
"table": {
"table_name": "storefronts",
"access_type": "system",
"possible_keys": [
"PRIMARY"
],
"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": "2K"
},
"used_columns": [
"storefront_id"
]
}
}
}
COUNT(*) |
---|
1 |