Query time 0.00099
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "126.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "23.00"
},
"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": 23,
"rows_produced_per_join": 23,
"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 ('557','558','559','560','561','562','563','564','515','516','517','518','519','520','521','522')))",
"cost_info": {
"read_cost": "43.61",
"eval_cost": "4.60",
"prefix_cost": "48.21",
"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": 23,
"filtered": "100.00",
"cost_info": {
"read_cost": "23.00",
"eval_cost": "4.60",
"prefix_cost": "75.81",
"data_read_per_join": "17K"
},
"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": 23,
"filtered": "100.00",
"cost_info": {
"read_cost": "23.00",
"eval_cost": "4.60",
"prefix_cost": "103.41",
"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 |
|
|
|
|
81426 |
563 |
product |
83369 |
A |
0 |
|
|
0 |
|
|
|
|
1063 |
515 |
product |
3040 |
A |
1 |
|
|
0 |
|
|
|
|
1064 |
515 |
product |
3041 |
A |
2 |
|
|
0 |
|
|
|
|
1066 |
516 |
product |
3043 |
A |
10 |
|
|
0 |
|
|
|
|
1068 |
517 |
product |
3045 |
A |
10 |
|
|
0 |
|
|
|
|
1070 |
518 |
product |
3047 |
A |
10 |
|
|
0 |
|
|
|
|
1072 |
519 |
product |
3049 |
A |
10 |
|
|
0 |
|
|
|
|
1074 |
520 |
product |
3051 |
A |
10 |
|
|
0 |
|
|
|
|
1077 |
522 |
product |
3054 |
A |
10 |
|
|
0 |
|
|
|
|
1147 |
557 |
product |
3124 |
A |
10 |
|
|
0 |
|
|
|
|
1149 |
558 |
product |
3126 |
A |
10 |
|
|
0 |
|
|
|
|
1151 |
559 |
product |
3128 |
A |
10 |
|
|
0 |
|
|
|
|
1153 |
560 |
product |
3130 |
A |
10 |
|
|
0 |
|
|
|
|
1155 |
561 |
product |
3132 |
A |
10 |
|
|
0 |
|
|
|
|
1157 |
562 |
product |
3134 |
A |
10 |
|
|
0 |
|
|
|
|
1161 |
564 |
product |
3138 |
A |
10 |
|
|