|
p; {
"rows_estimation": [
{
"table": "`staffs`",
"range_analysis": {
"table_scan": {
"rows": 6,
"cost": 4.3
},
"potential_range_indexes": [
{
"index": "PRIMARY",
"usable": false,
"cause": "not_applicable"
},
{
"index": "idx_nap",
"usable": true,
"key_parts": [
"name",
"age",
"pos",
"id"
]
}
],
"setup_range_conditions": [
],
"group_index_range": {
"chosen": false,
"cause": "not_group_by_or_distinct"
},
"analyzing_range_alternatives": {
"range_scan_alternatives": [
{
"index": "idx_nap",
"ranges": [
"Jul |