Query time 0.00094
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "140.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "26.00"
},
"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": 26,
"rows_produced_per_join": 26,
"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 ('284','285','286','287','288','289','290','291','292','293','294','295','296','297','298','299')))",
"cost_info": {
"read_cost": "47.21",
"eval_cost": "5.20",
"prefix_cost": "52.41",
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "83.61",
"data_read_per_join": "19K"
},
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "114.81",
"data_read_per_join": "15K"
},
"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 |
|
|
|
|
589 |
284 |
product |
2566 |
M |
0 |
|
|
0 |
|
|
|
|
591 |
285 |
product |
2568 |
M |
0 |
|
|
0 |
|
|
|
|
593 |
286 |
product |
2570 |
M |
0 |
|
|
0 |
|
|
|
|
595 |
287 |
product |
2572 |
M |
0 |
|
|
0 |
|
|
|
|
597 |
288 |
product |
2574 |
M |
0 |
|
|
0 |
|
|
|
|
599 |
289 |
product |
2576 |
M |
0 |
|
|
0 |
|
|
|
|
601 |
290 |
product |
2578 |
M |
0 |
|
|
0 |
|
|
|
|
603 |
291 |
product |
2580 |
M |
0 |
|
|
0 |
|
|
|
|
605 |
292 |
product |
2582 |
M |
0 |
|
|
0 |
|
|
|
|
607 |
293 |
product |
2584 |
M |
0 |
|
|
0 |
|
|
|
|
609 |
294 |
product |
2586 |
M |
0 |
|
|
0 |
|
|
|
|
611 |
295 |
product |
2588 |
M |
0 |
|
|
0 |
|
|
|
|
613 |
296 |
product |
2590 |
M |
0 |
|
|
0 |
|
|
|
|
615 |
297 |
product |
2592 |
M |
0 |
|
|
0 |
|
|
|
|
617 |
298 |
product |
2594 |
M |
0 |
|
|
0 |
|
|
|
|
619 |
299 |
product |
2596 |
M |
0 |
|
|