Query time 0.00148
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 ('9917','9918','9919','9920','9921','9922','9923','9924','9925','9926','9927','9928','9929','9930','9931','9932')))",
"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 |
|
|
|
|
20738 |
9917 |
product |
22700 |
M |
0 |
|
|
0 |
|
|
|
|
20739 |
9918 |
product |
22701 |
M |
0 |
|
|
0 |
|
|
|
|
20740 |
9919 |
product |
22702 |
M |
0 |
|
|
0 |
|
|
|
|
20741 |
9920 |
product |
22703 |
M |
0 |
|
|
0 |
|
|
|
|
20742 |
9921 |
product |
22704 |
M |
0 |
|
|
0 |
|
|
|
|
20743 |
9922 |
product |
22705 |
M |
0 |
|
|
0 |
|
|
|
|
20744 |
9923 |
product |
22706 |
M |
0 |
|
|
0 |
|
|
|
|
20745 |
9924 |
product |
22707 |
M |
0 |
|
|
0 |
|
|
|
|
20746 |
9925 |
product |
22708 |
M |
0 |
|
|
0 |
|
|
|
|
20747 |
9926 |
product |
22709 |
M |
0 |
|
|
0 |
|
|
|
|
20748 |
9927 |
product |
22710 |
M |
0 |
|
|
0 |
|
|
|
|
20749 |
9928 |
product |
22711 |
M |
0 |
|
|
0 |
|
|
|
|
20750 |
9929 |
product |
22712 |
M |
0 |
|
|
0 |
|
|
|
|
20752 |
9931 |
product |
22714 |
M |
0 |
|
|
0 |
|
|
|
|
20753 |
9932 |
product |
22715 |
M |
0 |
|
|
0 |
|
|
|
|
81568 |
9930 |
product |
83511 |
M |
0 |
|
|