Query time 0.00158
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "107.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "19.00"
},
"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": 19,
"rows_produced_per_join": 19,
"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 ('14787','14788','14789','14790','14791','14792','14793','14794','14795','14796','14797','14798','14799','14800','14801','14802')))",
"cost_info": {
"read_cost": "38.81",
"eval_cost": "3.80",
"prefix_cost": "42.61",
"data_read_per_join": "1K"
},
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "65.41",
"data_read_per_join": "14K"
},
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "88.21",
"data_read_per_join": "11K"
},
"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 |
|
|
|
|
28695 |
14787 |
product |
30657 |
M |
0 |
|
|
0 |
|
|
|
|
28696 |
14788 |
product |
30658 |
M |
0 |
|
|
0 |
|
|
|
|
28697 |
14789 |
product |
30659 |
M |
0 |
|
|
0 |
|
|
|
|
28698 |
14790 |
product |
30660 |
M |
0 |
|
|
0 |
|
|
|
|
28699 |
14791 |
product |
30661 |
M |
0 |
|
|
0 |
|
|
|
|
28700 |
14792 |
product |
30662 |
M |
0 |
|
|
0 |
|
|
|
|
28701 |
14793 |
product |
30663 |
M |
0 |
|
|
0 |
|
|
|
|
28702 |
14794 |
product |
30664 |
M |
0 |
|
|
0 |
|
|
|
|
28703 |
14795 |
product |
30665 |
M |
0 |
|
|
0 |
|
|
|
|
28704 |
14796 |
product |
30666 |
M |
0 |
|
|
0 |
|
|
|
|
28705 |
14797 |
product |
30667 |
M |
0 |
|
|
0 |
|
|
|
|
28706 |
14798 |
product |
30668 |
M |
0 |
|
|
0 |
|
|
|
|
28707 |
14799 |
product |
30669 |
M |
0 |
|
|
0 |
|
|
|
|
28708 |
14800 |
product |
30670 |
M |
0 |
|
|
0 |
|
|
|
|
28709 |
14801 |
product |
30671 |
M |
0 |
|
|
0 |
|
|
|
|
28710 |
14802 |
product |
30672 |
M |
0 |
|
|