Query time 0.00097
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 ('330','331','332','333','334','335','336','337','338','339','340','341','342','343','344','345')))",
"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 |
|
|
|
|
681 |
330 |
product |
2658 |
M |
0 |
|
|
0 |
|
|
|
|
683 |
331 |
product |
2660 |
M |
0 |
|
|
0 |
|
|
|
|
685 |
332 |
product |
2662 |
M |
0 |
|
|
0 |
|
|
|
|
687 |
333 |
product |
2664 |
M |
0 |
|
|
0 |
|
|
|
|
689 |
334 |
product |
2666 |
M |
0 |
|
|
0 |
|
|
|
|
691 |
335 |
product |
2668 |
M |
0 |
|
|
0 |
|
|
|
|
693 |
336 |
product |
2670 |
M |
0 |
|
|
0 |
|
|
|
|
695 |
337 |
product |
2672 |
M |
0 |
|
|
0 |
|
|
|
|
697 |
338 |
product |
2674 |
M |
0 |
|
|
0 |
|
|
|
|
699 |
339 |
product |
2676 |
M |
0 |
|
|
0 |
|
|
|
|
701 |
340 |
product |
2678 |
M |
0 |
|
|
0 |
|
|
|
|
703 |
341 |
product |
2680 |
M |
0 |
|
|
0 |
|
|
|
|
705 |
342 |
product |
2682 |
M |
0 |
|
|
0 |
|
|
|
|
707 |
343 |
product |
2684 |
M |
0 |
|
|
0 |
|
|
|
|
709 |
344 |
product |
2686 |
M |
0 |
|
|
0 |
|
|
|
|
711 |
345 |
product |
2688 |
M |
0 |
|
|