Query time 0.00060
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "1.00"
},
"ordering_operation": {
"using_filesort": false,
"nested_loop": [
{
"table": {
"table_name": "product_filters",
"access_type": "const",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"filter_id"
],
"key_length": "3",
"ref": [
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.00",
"eval_cost": "0.10",
"prefix_cost": "0.00",
"data_read_per_join": "64"
},
"used_columns": [
"filter_id",
"feature_id",
"position",
"field_type",
"status",
"round_to",
"display_count",
"display"
]
}
},
{
"table": {
"table_name": "product_filter_descriptions",
"access_type": "const",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"filter_id",
"lang_code"
],
"key_length": "9",
"ref": [
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.00",
"eval_cost": "0.10",
"prefix_cost": "0.00",
"data_read_per_join": "784"
},
"used_columns": [
"filter_id",
"lang_code",
"filter"
]
}
},
{
"table": {
"table_name": "product_features",
"access_type": "const",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"ref": [
"const"
],
"rows_examined_per_scan": 0,
"rows_produced_per_join": 1,
"filtered": "0.00",
"unique_row_not_found": true,
"cost_info": {
"read_cost": "0.00",
"eval_cost": "0.10",
"prefix_cost": "0.00",
"data_read_per_join": "440"
},
"used_columns": [
"feature_id",
"filter_style",
"feature_type"
]
}
},
{
"table": {
"table_name": "product_features_descriptions",
"access_type": "const",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id",
"lang_code"
],
"key_length": "9",
"ref": [
"const",
"const"
],
"rows_examined_per_scan": 0,
"rows_produced_per_join": 1,
"filtered": "0.00",
"unique_row_not_found": true,
"cost_info": {
"read_cost": "0.00",
"eval_cost": "0.10",
"prefix_cost": "0.00",
"data_read_per_join": "2K"
},
"used_columns": [
"feature_id",
"prefix",
"suffix",
"lang_code"
]
}
}
]
}
}
}
Result
feature_id |
filter_id |
field_type |
round_to |
display |
display_count |
filter |
feature_type |
filter_style |
prefix |
suffix |
0 |
1 |
P |
0.01 |
Y |
10 |
Price Filter |
|
|
|
|