Query time 0.00094
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "155.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "29.00"
},
"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": 29,
"rows_produced_per_join": 29,
"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 ('30303','30304','30305','30306','30307','30308','30309','30310','30311','30312','30313','30314','30315','30316','30317','30318')))",
"cost_info": {
"read_cost": "50.81",
"eval_cost": "5.80",
"prefix_cost": "56.61",
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "91.41",
"data_read_per_join": "22K"
},
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "126.21",
"data_read_per_join": "17K"
},
"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 |
|
|
|
|
48668 |
30307 |
product |
50629 |
M |
0 |
|
|
0 |
|
|
|
|
48677 |
30309 |
product |
50638 |
M |
0 |
|
|
0 |
|
|
|
|
48679 |
30310 |
product |
50640 |
M |
0 |
|
|
0 |
|
|
|
|
48681 |
30311 |
product |
50642 |
M |
0 |
|
|
0 |
|
|
|
|
48689 |
30312 |
product |
50650 |
M |
0 |
|
|
0 |
|
|
|
|
48690 |
30313 |
product |
50651 |
M |
0 |
|
|
0 |
|
|
|
|
48693 |
30314 |
product |
50654 |
M |
0 |
|
|
0 |
|
|
|
|
48694 |
30315 |
product |
50655 |
M |
0 |
|
|
0 |
|
|
|
|
48696 |
30316 |
product |
50657 |
M |
0 |
|
|
0 |
|
|
|
|
48713 |
30317 |
product |
50674 |
M |
0 |
|
|
0 |
|
|
|
|
48715 |
30318 |
product |
50676 |
M |
0 |
|
|
0 |
|
|
|
|
49005 |
30306 |
product |
50966 |
M |
0 |
|
|
0 |
|
|
|
|
49007 |
30305 |
product |
50968 |
M |
0 |
|
|
0 |
|
|
|
|
49009 |
30304 |
product |
50970 |
M |
0 |
|
|
0 |
|
|
|
|
49010 |
30303 |
product |
50971 |
M |
0 |
|
|
0 |
|
|
|
|
82113 |
30308 |
product |
84056 |
M |
0 |
|
|