Query time 0.00094
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "140.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "26.00"
},
"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": 26,
"rows_produced_per_join": 26,
"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 ('30800','30801','30802','30803','30804','30805','30806','30807','30808','30809','30810','30811','30812','30813','30814','30815')))",
"cost_info": {
"read_cost": "47.21",
"eval_cost": "5.20",
"prefix_cost": "52.41",
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "83.61",
"data_read_per_join": "19K"
},
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "114.81",
"data_read_per_join": "15K"
},
"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 |
|
|
|
|
49457 |
30815 |
product |
51418 |
M |
0 |
|
|
0 |
|
|
|
|
49458 |
30814 |
product |
51419 |
M |
0 |
|
|
0 |
|
|
|
|
49460 |
30813 |
product |
51421 |
M |
0 |
|
|
0 |
|
|
|
|
49463 |
30812 |
product |
51424 |
M |
0 |
|
|
0 |
|
|
|
|
49465 |
30811 |
product |
51426 |
M |
0 |
|
|
0 |
|
|
|
|
49469 |
30810 |
product |
51430 |
M |
0 |
|
|
0 |
|
|
|
|
49470 |
30809 |
product |
51431 |
M |
0 |
|
|
0 |
|
|
|
|
49472 |
30808 |
product |
51433 |
M |
0 |
|
|
0 |
|
|
|
|
49475 |
30807 |
product |
51436 |
M |
0 |
|
|
0 |
|
|
|
|
49476 |
30806 |
product |
51437 |
M |
0 |
|
|
0 |
|
|
|
|
49479 |
30804 |
product |
51440 |
M |
0 |
|
|
0 |
|
|
|
|
49481 |
30803 |
product |
51442 |
M |
0 |
|
|
0 |
|
|
|
|
49484 |
30801 |
product |
51445 |
M |
0 |
|
|
0 |
|
|
|
|
49486 |
30800 |
product |
51447 |
M |
0 |
|
|
0 |
|
|
|
|
55202 |
30802 |
product |
57163 |
M |
0 |
|
|
0 |
|
|
|
|
81745 |
30805 |
product |
83688 |
M |
0 |
|
|
0 |
|
|
|
|
81748 |
30805 |
product |
83691 |
M |
0 |
|
|