Query time 0.00264
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "2.76"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "0.11"
},
"nested_loop": [
{
"table": {
"table_name": "c",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"product_id"
],
"key": "product_id",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"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": "8"
},
"used_columns": [
"option_id",
"product_id"
],
"attached_condition": "(`ea201_diorama`.`c`.`option_id` is not null)"
}
},
{
"table": {
"table_name": "a",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"c_status"
],
"key": "PRIMARY",
"used_key_parts": [
"option_id"
],
"key_length": "3",
"ref": [
"ea201_diorama.c.option_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "10.71",
"cost_info": {
"read_cost": "1.00",
"eval_cost": "0.02",
"prefix_cost": "2.40",
"data_read_per_join": "251"
},
"used_columns": [
"option_id",
"product_id",
"option_type",
"inventory",
"status",
"position",
"value",
"regexp",
"required",
"multiupload",
"allowed_extensions",
"max_file_size",
"company_id",
"missing_variants_handling"
],
"attached_condition": "((`ea201_diorama`.`a`.`product_id` = 0) and (`ea201_diorama`.`a`.`status` = 'A'))"
}
},
{
"table": {
"table_name": "b",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"option_id",
"lang_code"
],
"key_length": "9",
"ref": [
"ea201_diorama.c.option_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.11",
"eval_cost": "0.02",
"prefix_cost": "2.53",
"data_read_per_join": "372"
},
"used_columns": [
"option_id",
"lang_code",
"option_name",
"option_text",
"description",
"inner_hint",
"incorrect_message",
"comment",
"internal_option_name"
]
}
},
{
"table": {
"table_name": "cscart_ult_objects_sharing",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"share_object_id",
"share_company_id",
"share_object_type"
],
"key_length": "159",
"ref": [
"ea201_diorama.c.option_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "0.11",
"eval_cost": "0.02",
"prefix_cost": "2.66",
"data_read_per_join": "17"
},
"used_columns": [
"share_company_id",
"share_object_id",
"share_object_type"
],
"attached_condition": "(`ea201_diorama`.`cscart_ult_objects_sharing`.`share_object_id` = `ea201_diorama`.`c`.`option_id`)"
}
}
]
}
}
}