Query time 0.00082
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "160.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "30.00"
},
"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": 30,
"rows_produced_per_join": 30,
"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 ('254','255','256','257','258','259','260','261','262','229','230','231','232','233','234','235')))",
"cost_info": {
"read_cost": "52.01",
"eval_cost": "6.00",
"prefix_cost": "58.01",
"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": 30,
"filtered": "100.00",
"cost_info": {
"read_cost": "30.00",
"eval_cost": "6.00",
"prefix_cost": "94.01",
"data_read_per_join": "22K"
},
"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": 30,
"filtered": "100.00",
"cost_info": {
"read_cost": "30.00",
"eval_cost": "6.00",
"prefix_cost": "130.01",
"data_read_per_join": "17K"
},
"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 |
|
|
|
|
473 |
229 |
product |
2450 |
M |
0 |
|
|
0 |
|
|
|
|
475 |
230 |
product |
2452 |
M |
0 |
|
|
0 |
|
|
|
|
477 |
231 |
product |
2454 |
M |
0 |
|
|
0 |
|
|
|
|
479 |
232 |
product |
2456 |
M |
0 |
|
|
0 |
|
|
|
|
481 |
233 |
product |
2458 |
M |
0 |
|
|
0 |
|
|
|
|
483 |
234 |
product |
2460 |
M |
0 |
|
|
0 |
|
|
|
|
485 |
235 |
product |
2462 |
M |
0 |
|
|
0 |
|
|
|
|
522 |
254 |
product |
2499 |
M |
0 |
|
|
0 |
|
|
|
|
524 |
255 |
product |
2501 |
M |
0 |
|
|
0 |
|
|
|
|
526 |
256 |
product |
2503 |
M |
0 |
|
|
0 |
|
|
|
|
530 |
259 |
product |
2507 |
M |
0 |
|
|
0 |
|
|
|
|
532 |
260 |
product |
2509 |
M |
0 |
|
|
0 |
|
|
|
|
534 |
261 |
product |
2511 |
M |
0 |
|
|
0 |
|
|
|
|
536 |
262 |
product |
2513 |
M |
0 |
|
|
0 |
|
|
|
|
538 |
258 |
product |
2515 |
M |
0 |
|
|
0 |
|
|
|
|
539 |
257 |
product |
2516 |
M |
0 |
|
|