Query time 0.00104
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "121.61"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "22.00"
},
"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": 22,
"rows_produced_per_join": 22,
"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 ('9869','9870','9871','9872','9873','9874','9875','9876','9877','9878','9879','9880','9881','9882','9883','9884')))",
"cost_info": {
"read_cost": "42.41",
"eval_cost": "4.40",
"prefix_cost": "46.81",
"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": 22,
"filtered": "100.00",
"cost_info": {
"read_cost": "22.00",
"eval_cost": "4.40",
"prefix_cost": "73.21",
"data_read_per_join": "16K"
},
"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": 22,
"filtered": "100.00",
"cost_info": {
"read_cost": "22.00",
"eval_cost": "4.40",
"prefix_cost": "99.61",
"data_read_per_join": "13K"
},
"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 |
|
|
|
|
20690 |
9869 |
product |
22652 |
M |
0 |
|
|
0 |
|
|
|
|
20691 |
9870 |
product |
22653 |
M |
0 |
|
|
0 |
|
|
|
|
20692 |
9871 |
product |
22654 |
M |
0 |
|
|
0 |
|
|
|
|
20693 |
9872 |
product |
22655 |
M |
0 |
|
|
0 |
|
|
|
|
20694 |
9873 |
product |
22656 |
M |
0 |
|
|
0 |
|
|
|
|
20695 |
9874 |
product |
22657 |
M |
0 |
|
|
0 |
|
|
|
|
20696 |
9875 |
product |
22658 |
M |
0 |
|
|
0 |
|
|
|
|
20697 |
9876 |
product |
22659 |
M |
0 |
|
|
0 |
|
|
|
|
20698 |
9877 |
product |
22660 |
M |
0 |
|
|
0 |
|
|
|
|
20699 |
9878 |
product |
22661 |
M |
0 |
|
|
0 |
|
|
|
|
20700 |
9879 |
product |
22662 |
M |
0 |
|
|
0 |
|
|
|
|
20701 |
9880 |
product |
22663 |
M |
0 |
|
|
0 |
|
|
|
|
20702 |
9881 |
product |
22664 |
M |
0 |
|
|
0 |
|
|
|
|
20703 |
9882 |
product |
22665 |
M |
0 |
|
|
0 |
|
|
|
|
20704 |
9883 |
product |
22666 |
M |
0 |
|
|
0 |
|
|
|
|
20705 |
9884 |
product |
22667 |
M |
0 |
|
|