{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "2.40"
},
"nested_loop": [
{
"table": {
"table_name": "cscart_settings_objects",
"access_type": "ref",
"possible_keys": [
"name"
],
"key": "name",
"used_key_parts": [
"name"
],
"key_length": "386",
"ref": [
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.00",
"eval_cost": "0.20",
"prefix_cost": "1.20",
"data_read_per_join": "808"
},
"used_columns": [
"object_id",
"name",
"section_id"
]
}
},
{
"table": {
"table_name": "cscart_settings_sections",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"section_id"
],
"key_length": "4",
"ref": [
"db_emaika1.cscart_settings_objects.section_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.00",
"eval_cost": "0.20",
"prefix_cost": "2.40",
"data_read_per_join": "400"
},
"used_columns": [
"section_id"
]
}
}
]
}
}
object_id |
---|
291 |