Query time 0.00112
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "92.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "16.00"
},
"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": 16,
"rows_produced_per_join": 16,
"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 ('9789','9790','9791','9792','9793','9794','9795','9796','9797','9798','9799','9800','9801','9802','9803','9804')))",
"cost_info": {
"read_cost": "35.21",
"eval_cost": "3.20",
"prefix_cost": "38.41",
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "57.61",
"data_read_per_join": "12K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "76.81",
"data_read_per_join": "9K"
},
"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 |
|
|
|
|
20613 |
9790 |
product |
22575 |
M |
0 |
|
|
0 |
|
|
|
|
20614 |
9791 |
product |
22576 |
M |
0 |
|
|
0 |
|
|
|
|
20615 |
9792 |
product |
22577 |
M |
0 |
|
|
0 |
|
|
|
|
20616 |
9793 |
product |
22578 |
M |
0 |
|
|
0 |
|
|
|
|
20617 |
9794 |
product |
22579 |
M |
0 |
|
|
0 |
|
|
|
|
20618 |
9795 |
product |
22580 |
M |
0 |
|
|
0 |
|
|
|
|
20619 |
9796 |
product |
22581 |
M |
0 |
|
|
0 |
|
|
|
|
20620 |
9797 |
product |
22582 |
M |
0 |
|
|
0 |
|
|
|
|
20621 |
9798 |
product |
22583 |
M |
0 |
|
|
0 |
|
|
|
|
20622 |
9800 |
product |
22584 |
M |
0 |
|
|
0 |
|
|
|
|
20623 |
9801 |
product |
22585 |
M |
0 |
|
|
0 |
|
|
|
|
20624 |
9802 |
product |
22586 |
M |
0 |
|
|
0 |
|
|
|
|
20625 |
9803 |
product |
22587 |
M |
0 |
|
|
0 |
|
|
|
|
20626 |
9804 |
product |
22588 |
M |
0 |
|
|
0 |
|
|
|
|
25131 |
9789 |
product |
27093 |
M |
0 |
|
|
0 |
|
|
|
|
25144 |
9799 |
product |
27106 |
M |
0 |
|
|