Query time 0.00103
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "179.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "34.00"
},
"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": 34,
"rows_produced_per_join": 34,
"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 ('597','598','599','600','601','602','603','604','605','606','607','608','609','610','611','612')))",
"cost_info": {
"read_cost": "56.81",
"eval_cost": "6.80",
"prefix_cost": "63.61",
"data_read_per_join": "3K"
},
"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": 34,
"filtered": "100.00",
"cost_info": {
"read_cost": "34.00",
"eval_cost": "6.80",
"prefix_cost": "104.41",
"data_read_per_join": "26K"
},
"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": 34,
"filtered": "100.00",
"cost_info": {
"read_cost": "34.00",
"eval_cost": "6.80",
"prefix_cost": "145.21",
"data_read_per_join": "20K"
},
"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 |
|
|
|
|
1226 |
597 |
product |
3203 |
A |
10 |
|
|
0 |
|
|
|
|
1228 |
598 |
product |
3205 |
A |
10 |
|
|
0 |
|
|
|
|
1230 |
599 |
product |
3207 |
A |
10 |
|
|
0 |
|
|
|
|
1232 |
600 |
product |
3209 |
A |
10 |
|
|
0 |
|
|
|
|
1234 |
601 |
product |
3211 |
A |
10 |
|
|
0 |
|
|
|
|
1236 |
602 |
product |
3213 |
A |
10 |
|
|
0 |
|
|
|
|
1238 |
603 |
product |
3215 |
A |
10 |
|
|
0 |
|
|
|
|
1240 |
604 |
product |
3217 |
A |
10 |
|
|
0 |
|
|
|
|
1242 |
605 |
product |
3219 |
A |
10 |
|
|
0 |
|
|
|
|
1244 |
606 |
product |
3221 |
A |
10 |
|
|
0 |
|
|
|
|
1246 |
607 |
product |
3223 |
A |
10 |
|
|
0 |
|
|
|
|
1248 |
608 |
product |
3225 |
A |
10 |
|
|
0 |
|
|
|
|
1250 |
609 |
product |
3227 |
A |
10 |
|
|
0 |
|
|
|
|
1252 |
610 |
product |
3229 |
A |
10 |
|
|
0 |
|
|
|
|
1254 |
611 |
product |
3231 |
A |
10 |
|
|
0 |
|
|
|
|
1256 |
612 |
product |
3233 |
A |
10 |
|
|
0 |
|
|
|
|
1275 |
597 |
product |
3252 |
A |
10 |
|
|
0 |
|
|
|
|
1276 |
598 |
product |
3253 |
A |
10 |
|
|
0 |
|
|
|
|
1277 |
599 |
product |
3254 |
A |
10 |
|
|
0 |
|
|
|
|
1278 |
600 |
product |
3255 |
A |
10 |
|
|
0 |
|
|
|
|
1279 |
601 |
product |
3256 |
A |
10 |
|
|
0 |
|
|
|
|
1280 |
602 |
product |
3257 |
A |
10 |
|
|
0 |
|
|
|
|
1281 |
603 |
product |
3258 |
A |
10 |
|
|
0 |
|
|
|
|
1282 |
604 |
product |
3259 |
A |
10 |
|
|
0 |
|
|
|
|
1283 |
605 |
product |
3260 |
A |
10 |
|
|
0 |
|
|
|
|
1284 |
606 |
product |
3261 |
A |
10 |
|
|
0 |
|
|
|
|
1285 |
607 |
product |
3262 |
A |
10 |
|
|
0 |
|
|
|
|
1286 |
608 |
product |
3263 |
A |
10 |
|
|
0 |
|
|
|
|
1287 |
609 |
product |
3264 |
A |
10 |
|
|
0 |
|
|
|
|
1288 |
610 |
product |
3265 |
A |
10 |
|
|
0 |
|
|
|
|
1289 |
611 |
product |
3266 |
A |
10 |
|
|
0 |
|
|
|
|
1290 |
612 |
product |
3267 |
A |
10 |
|
|