Query time 0.00387
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "9.52"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "3.95"
},
"nested_loop": [
{
"table": {
"table_name": "cscart_banners",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"status"
],
"key": "PRIMARY",
"used_key_parts": [
"banner_id"
],
"key_length": "3",
"rows_examined_per_scan": 4,
"rows_produced_per_join": 3,
"filtered": "98.75",
"index_condition": "(`s2cart`.`cscart_banners`.`banner_id` in (36,37,38,39))",
"cost_info": {
"read_cost": "2.41",
"eval_cost": "0.40",
"prefix_cost": "2.81",
"data_read_per_join": "27K"
},
"used_columns": [
"banner_id",
"status",
"type",
"target",
"timestamp",
"abt__ut2_use_avail_period",
"abt__ut2_avail_from",
"abt__ut2_avail_till",
"from_date",
"to_date",
"usergroup_ids",
"abt__ut2_usergroup_ids"
],
"attached_condition": "((`s2cart`.`cscart_banners`.`status` = 'A') and (0 <> if(`s2cart`.`cscart_banners`.`from_date`,(`s2cart`.`cscart_banners`.`from_date` <= 1732141739),1)) and (0 <> if(`s2cart`.`cscart_banners`.`to_date`,(`s2cart`.`cscart_banners`.`to_date` >= 1732141739),1)) and ((`s2cart`.`cscart_banners`.`usergroup_ids` = '') or (0 <> find_in_set(0,`s2cart`.`cscart_banners`.`usergroup_ids`)) or (0 <> find_in_set(1,`s2cart`.`cscart_banners`.`usergroup_ids`))) and (if((not((`s2cart`.`cscart_banners`.`type` like 'abt__ut2'))),'available',if(((`s2cart`.`cscart_banners`.`type` like 'abt__ut2') and ((`s2cart`.`cscart_banners`.`abt__ut2_use_avail_period` = 'N') or ((`s2cart`.`cscart_banners`.`abt__ut2_use_avail_period` = 'Y') and ((`s2cart`.`cscart_banners`.`abt__ut2_avail_from` = 0) or (`s2cart`.`cscart_banners`.`abt__ut2_avail_from` <= 1732141739)) and ((`s2cart`.`cscart_banners`.`abt__ut2_avail_till` = 0) or (`s2cart`.`cscart_banners`.`abt__ut2_avail_till` >= 1732141739))))),'available','not available')) = 'available') and ((`s2cart`.`cscart_banners`.`abt__ut2_usergroup_ids` = '') or (0 <> find_in_set(0,`s2cart`.`cscart_banners`.`abt__ut2_usergroup_ids`)) or (0 <> find_in_set(1,`s2cart`.`cscart_banners`.`abt__ut2_usergroup_ids`))))"
}
},
{
"table": {
"table_name": "cscart_banner_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"banner_id",
"lang_code"
],
"key_length": "9",
"ref": [
"s2cart.cscart_banners.banner_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 3,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.99",
"eval_cost": "0.40",
"prefix_cost": "4.19",
"data_read_per_join": "19K"
},
"used_columns": [
"banner_id",
"banner",
"url",
"description",
"lang_code"
]
}
},
{
"table": {
"table_name": "cscart_banner_images",
"access_type": "eq_ref",
"possible_keys": [
"banner"
],
"key": "banner",
"used_key_parts": [
"banner_id",
"lang_code"
],
"key_length": "9",
"ref": [
"s2cart.cscart_banners.banner_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 3,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.99",
"eval_cost": "0.40",
"prefix_cost": "5.58",
"data_read_per_join": "63"
},
"used_columns": [
"banner_image_id",
"banner_id",
"lang_code"
],
"attached_condition": "<if>(found_match(cscart_banner_images), ((`s2cart`.`cscart_banners`.`type` <> 'G') or (`s2cart`.`cscart_banner_images`.`banner_image_id` is not null)), true)"
}
}
]
}
}
}