Query time 0.00114
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 ('10482','10483','10485','10486','10487','10488','10489','10490','10491','10492','10493','10494','10495','10496','10497','10498')))",
"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 |
|
|
|
|
21463 |
10493 |
product |
23425 |
M |
0 |
|
|
0 |
|
|
|
|
21466 |
10494 |
product |
23428 |
M |
0 |
|
|
0 |
|
|
|
|
21476 |
10497 |
product |
23438 |
M |
0 |
|
|
0 |
|
|
|
|
21478 |
10498 |
product |
23440 |
M |
0 |
|
|
0 |
|
|
|
|
21763 |
10483 |
product |
23725 |
M |
0 |
|
|
0 |
|
|
|
|
21770 |
10485 |
product |
23732 |
M |
0 |
|
|
0 |
|
|
|
|
21779 |
10488 |
product |
23741 |
M |
0 |
|
|
0 |
|
|
|
|
21782 |
10489 |
product |
23744 |
M |
0 |
|
|
0 |
|
|
|
|
21785 |
10490 |
product |
23747 |
M |
0 |
|
|
0 |
|
|
|
|
21796 |
10496 |
product |
23758 |
M |
0 |
|
|
0 |
|
|
|
|
26762 |
10486 |
product |
28724 |
M |
0 |
|
|
0 |
|
|
|
|
26785 |
10495 |
product |
28747 |
M |
0 |
|
|
0 |
|
|
|
|
26787 |
10491 |
product |
28749 |
M |
0 |
|
|
0 |
|
|
|
|
26833 |
10487 |
product |
28795 |
M |
0 |
|
|
0 |
|
|
|
|
81206 |
10492 |
product |
83149 |
M |
0 |
|
|
0 |
|
|
|
|
82674 |
10482 |
product |
84617 |
M |
0 |
|
|