Query time 0.00094
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 ('2620','2621','2622','2623','2624','2625','2626','2627','2628','2629','2630','2631','2632','2633','2634','2635')))",
"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 |
|
|
|
|
5944 |
2620 |
product |
7915 |
M |
0 |
|
|
0 |
|
|
|
|
5946 |
2621 |
product |
7917 |
M |
0 |
|
|
0 |
|
|
|
|
5948 |
2622 |
product |
7919 |
M |
0 |
|
|
0 |
|
|
|
|
5950 |
2623 |
product |
7921 |
M |
0 |
|
|
0 |
|
|
|
|
5952 |
2624 |
product |
7923 |
M |
0 |
|
|
0 |
|
|
|
|
5953 |
2625 |
product |
7924 |
M |
0 |
|
|
0 |
|
|
|
|
5954 |
2626 |
product |
7925 |
M |
0 |
|
|
0 |
|
|
|
|
5955 |
2627 |
product |
7926 |
M |
0 |
|
|
0 |
|
|
|
|
5956 |
2628 |
product |
7927 |
M |
0 |
|
|
0 |
|
|
|
|
5957 |
2629 |
product |
7928 |
M |
0 |
|
|
0 |
|
|
|
|
5958 |
2630 |
product |
7929 |
M |
0 |
|
|
0 |
|
|
|
|
5959 |
2631 |
product |
7930 |
M |
0 |
|
|
0 |
|
|
|
|
5961 |
2632 |
product |
7932 |
M |
0 |
|
|
0 |
|
|
|
|
5962 |
2633 |
product |
7933 |
M |
0 |
|
|
0 |
|
|
|
|
5963 |
2634 |
product |
7934 |
M |
0 |
|
|
0 |
|
|
|
|
5965 |
2635 |
product |
7936 |
M |
0 |
|
|