Query time 0.00144
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "1.38"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"nested_loop": [
{
"table": {
"table_name": "pf",
"access_type": "ref",
"possible_keys": [
"status"
],
"key": "status",
"used_key_parts": [
"status"
],
"key_length": "3",
"ref": [
"const"
],
"rows_examined_per_scan": 4,
"rows_produced_per_join": 0,
"filtered": "20.00",
"cost_info": {
"read_cost": "0.50",
"eval_cost": "0.08",
"prefix_cost": "0.90",
"data_read_per_join": "352"
},
"used_columns": [
"feature_id",
"feature_code",
"company_id",
"purpose",
"feature_style",
"filter_style",
"feature_type",
"categories_path",
"parent_id",
"display_on_product",
"display_on_catalog",
"display_on_header",
"status",
"position",
"comparison",
"timestamp",
"updated_timestamp"
],
"attached_condition": "(`betaatif_store`.`pf`.`feature_type` = 'E')"
}
},
{
"table": {
"table_name": "pf_groups",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"ref": [
"betaatif_store.pf.parent_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "36.00",
"cost_info": {
"read_cost": "0.20",
"eval_cost": "0.03",
"prefix_cost": "1.18",
"data_read_per_join": "126"
},
"used_columns": [
"feature_id",
"status",
"position"
],
"attached_condition": "<if>(found_match(pf_groups), ((`betaatif_store`.`pf_groups`.`status` = 'A') or (`betaatif_store`.`pf_groups`.`status` is null)), true)"
}
},
{
"table": {
"table_name": "pf_groups_description",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id",
"lang_code"
],
"key_length": "9",
"ref": [
"betaatif_store.pf.parent_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.07",
"eval_cost": "0.03",
"prefix_cost": "1.28",
"data_read_per_join": "670"
},
"used_columns": [
"feature_id",
"description",
"lang_code"
]
}
},
{
"table": {
"table_name": "cscart_product_features_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id",
"lang_code"
],
"key_length": "9",
"ref": [
"betaatif_store.pf.feature_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.07",
"eval_cost": "0.03",
"prefix_cost": "1.38",
"data_read_per_join": "670"
},
"used_columns": [
"feature_id",
"description",
"full_description",
"prefix",
"suffix",
"lang_code",
"internal_name"
]
}
}
]
}
}
}