Query time 0.00250
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "5.59"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "2.77"
},
"nested_loop": [
{
"table": {
"table_name": "c",
"access_type": "index",
"possible_keys": [
"PRIMARY",
"product_id"
],
"key": "PRIMARY",
"used_key_parts": [
"option_id",
"product_id"
],
"key_length": "6",
"rows_examined_per_scan": 3,
"rows_produced_per_join": 3,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "0.50",
"eval_cost": "0.30",
"prefix_cost": "0.80",
"data_read_per_join": "24"
},
"used_columns": [
"option_id",
"product_id"
],
"attached_condition": "((`softwarepirmam_hewadelivard_cscart_4`.`c`.`product_id` in (11306,11446,11508,11225,11337,11472,11531,11086,11166,11291,11348,11411,11477,11256,11430,11479,11126,11167,11309,11520,11600,11128,11362,11414,11535,11633,11199,11390,11399,11530,11236,11289,11462,11136,11193,11352,11267,11293,11308,11388,11458,11143,11231,11152,11238,11439,11453,11202,11360,11198,11272,11274,11300,11500,11522,11168,11233,11287,11217,11218,11226,11271,11364,11164,11232,11288,11526,11024,11080,11204,11220,11200,11270,10991,11003,11211,11216,11240,11084,11210)) and (`softwarepirmam_hewadelivard_cscart_4`.`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": [
"softwarepirmam_hewadelivard_cscart_4.c.option_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "92.31",
"cost_info": {
"read_cost": "0.75",
"eval_cost": "0.28",
"prefix_cost": "1.85",
"data_read_per_join": "6K"
},
"used_columns": [
"option_id",
"product_id",
"company_id",
"option_type",
"regexp",
"required",
"multiupload",
"allowed_extensions",
"max_file_size",
"missing_variants_handling",
"status",
"position",
"value"
],
"attached_condition": "((`softwarepirmam_hewadelivard_cscart_4`.`a`.`product_id` = 0) and (`softwarepirmam_hewadelivard_cscart_4`.`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": [
"softwarepirmam_hewadelivard_cscart_4.c.option_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.69",
"eval_cost": "0.28",
"prefix_cost": "2.82",
"data_read_per_join": "9K"
},
"used_columns": [
"option_id",
"lang_code",
"option_name",
"internal_option_name",
"option_text",
"description",
"comment",
"inner_hint",
"incorrect_message"
]
}
}
]
}
}
}