Query time 0.00110
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "116.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "21.00"
},
"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": 21,
"rows_produced_per_join": 21,
"filtered": "100.00",
"index_condition": "((`portal`.`q_images_links`.`object_type` = 'product') and (`portal`.`q_images_links`.`type` = 'A') and (`portal`.`q_images_links`.`object_id` in ('9565','9566','9567','9568','9569','9570','9571','9572','9573','9574','9575','9576','9577','9578','9579','9580')))",
"cost_info": {
"read_cost": "41.21",
"eval_cost": "4.20",
"prefix_cost": "45.41",
"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": 21,
"filtered": "100.00",
"cost_info": {
"read_cost": "21.00",
"eval_cost": "4.20",
"prefix_cost": "70.61",
"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": 21,
"filtered": "100.00",
"cost_info": {
"read_cost": "21.00",
"eval_cost": "4.20",
"prefix_cost": "95.81",
"data_read_per_join": "12K"
},
"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 |
|
|
|
|
26045 |
9566 |
product |
28007 |
A |
1 |
|
|
0 |
|
|
|
|
26047 |
9568 |
product |
28009 |
A |
1 |
|
|
0 |
|
|
|
|
26048 |
9569 |
product |
28010 |
A |
1 |
|
|
0 |
|
|
|
|
26060 |
9576 |
product |
28022 |
A |
1 |
|
|
0 |
|
|
|
|
26063 |
9577 |
product |
28025 |
A |
1 |
|
|
0 |
|
|
|
|
26067 |
9578 |
product |
28029 |
A |
1 |
|
|
0 |
|
|
|
|
26070 |
9579 |
product |
28032 |
A |
1 |
|
|
0 |
|
|
|
|
26081 |
9572 |
product |
28043 |
A |
1 |
|
|
0 |
|
|
|
|
26082 |
9573 |
product |
28044 |
A |
1 |
|
|
0 |
|
|
|
|
26046 |
9567 |
product |
28008 |
A |
2 |
|
|
0 |
|
|
|
|
26061 |
9576 |
product |
28023 |
A |
2 |
|
|
0 |
|
|
|
|
26064 |
9577 |
product |
28026 |
A |
2 |
|
|
0 |
|
|
|
|
26068 |
9578 |
product |
28030 |
A |
2 |
|
|
0 |
|
|
|
|
26071 |
9579 |
product |
28033 |
A |
2 |
|
|
0 |
|
|
|
|
26072 |
9580 |
product |
28034 |
A |
2 |
|
|
0 |
|
|
|
|
26083 |
9573 |
product |
28045 |
A |
2 |
|
|
0 |
|
|
|
|
26062 |
9576 |
product |
28024 |
A |
3 |
|
|
0 |
|
|
|
|
26065 |
9577 |
product |
28027 |
A |
3 |
|
|
0 |
|
|
|
|
26069 |
9578 |
product |
28031 |
A |
3 |
|
|
0 |
|
|
|
|
26052 |
9574 |
product |
28014 |
A |
4 |
|
|
0 |
|
|
|
|
26057 |
9575 |
product |
28019 |
A |
4 |
|
|
0 |
|
|
|
|
26066 |
9577 |
product |
28028 |
A |
4 |
|
|
0 |
|
|
|
|
26053 |
9574 |
product |
28015 |
A |
5 |
|
|
0 |
|
|
|
|
26058 |
9575 |
product |
28020 |
A |
5 |
|
|
0 |
|
|
|
|
26059 |
9575 |
product |
28021 |
A |
6 |
|
|