Query time 0.00122
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "155.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "29.00"
},
"nested_loop": [
{
"table": {
"table_name": "q_images_links",
"access_type": "range",
"possible_keys": [
"object_id"
],
"key": "object_id",
"used_key_parts": [
"object_id",
"object_type",
"type"
],
"key_length": "81",
"rows_examined_per_scan": 29,
"rows_produced_per_join": 29,
"filtered": "100.00",
"index_condition": "((`portal`.`q_images_links`.`object_type` = 'product') and (`portal`.`q_images_links`.`type` = 'M') and (`portal`.`q_images_links`.`object_id` in ('37147','37148','37149','37150','37151','37152','37153','37154','37155','37156','37157','37158','37160','37161','37162','37163')))",
"cost_info": {
"read_cost": "50.81",
"eval_cost": "5.80",
"prefix_cost": "56.61",
"data_read_per_join": "2K"
},
"used_columns": [
"pair_id",
"object_id",
"object_type",
"image_id",
"detailed_id",
"type",
"position"
]
}
},
{
"table": {
"table_name": "q_images",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"image_id"
],
"key_length": "4",
"ref": [
"portal.q_images_links.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "91.41",
"data_read_per_join": "22K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"is_high_res"
]
}
},
{
"table": {
"table_name": "q_common_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"object_id",
"lang_code",
"object_holder"
],
"key_length": "107",
"ref": [
"portal.q_images.image_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "126.21",
"data_read_per_join": "17K"
},
"used_columns": [
"object_id",
"description",
"lang_code",
"object_holder"
],
"attached_condition": "<if>(is_not_null_compl(q_common_descriptions), (`portal`.`q_common_descriptions`.`object_id` = `portal`.`q_images`.`image_id`), true)"
}
}
]
}
}
}
Result
image_id |
image_path |
image_x |
image_y |
is_high_res |
pair_id |
object_id |
object_type |
detailed_id |
type |
position |
alt |
images_image_id |
0 |
|
|
|
|
58526 |
37163 |
product |
60482 |
M |
0 |
|
|
0 |
|
|
|
|
58529 |
37158 |
product |
60485 |
M |
0 |
|
|
0 |
|
|
|
|
58531 |
37157 |
product |
60487 |
M |
0 |
|
|
0 |
|
|
|
|
58533 |
37156 |
product |
60489 |
M |
0 |
|
|
0 |
|
|
|
|
58534 |
37155 |
product |
60490 |
M |
0 |
|
|
0 |
|
|
|
|
58536 |
37154 |
product |
60492 |
M |
0 |
|
|
0 |
|
|
|
|
58537 |
37153 |
product |
60493 |
M |
0 |
|
|
0 |
|
|
|
|
58541 |
37152 |
product |
60497 |
M |
0 |
|
|
0 |
|
|
|
|
58542 |
37151 |
product |
60498 |
M |
0 |
|
|
0 |
|
|
|
|
58543 |
37150 |
product |
60499 |
M |
0 |
|
|
0 |
|
|
|
|
58545 |
37149 |
product |
60501 |
M |
0 |
|
|
0 |
|
|
|
|
59178 |
37161 |
product |
61134 |
M |
0 |
|
|
0 |
|
|
|
|
59180 |
37148 |
product |
61136 |
M |
0 |
|
|
0 |
|
|
|
|
63001 |
37162 |
product |
64957 |
M |
0 |
|
|
0 |
|
|
|
|
67451 |
37160 |
product |
69402 |
M |
0 |
|
|
0 |
|
|
|
|
67713 |
37147 |
product |
69664 |
M |
0 |
|
|