Query time 0.00085
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "150.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "28.00"
},
"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": 28,
"rows_produced_per_join": 28,
"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 ('30718','30719','30720','30721','30722','30723','30724','30725','30726','30727','30728','30729','30730','30731','30732','30733')))",
"cost_info": {
"read_cost": "49.61",
"eval_cost": "5.60",
"prefix_cost": "55.21",
"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": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "88.81",
"data_read_per_join": "21K"
},
"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": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "122.41",
"data_read_per_join": "16K"
},
"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 |
|
|
|
|
49350 |
30733 |
product |
51311 |
M |
0 |
|
|
0 |
|
|
|
|
49352 |
30732 |
product |
51313 |
M |
0 |
|
|
0 |
|
|
|
|
49354 |
30731 |
product |
51315 |
M |
0 |
|
|
0 |
|
|
|
|
49356 |
30730 |
product |
51317 |
M |
0 |
|
|
0 |
|
|
|
|
49357 |
30729 |
product |
51318 |
M |
0 |
|
|
0 |
|
|
|
|
49358 |
30728 |
product |
51319 |
M |
0 |
|
|
0 |
|
|
|
|
49359 |
30727 |
product |
51320 |
M |
0 |
|
|
0 |
|
|
|
|
49360 |
30726 |
product |
51321 |
M |
0 |
|
|
0 |
|
|
|
|
49362 |
30725 |
product |
51323 |
M |
0 |
|
|
0 |
|
|
|
|
49363 |
30724 |
product |
51324 |
M |
0 |
|
|
0 |
|
|
|
|
49365 |
30723 |
product |
51326 |
M |
0 |
|
|
0 |
|
|
|
|
49366 |
30722 |
product |
51327 |
M |
0 |
|
|
0 |
|
|
|
|
49368 |
30720 |
product |
51329 |
M |
0 |
|
|
0 |
|
|
|
|
49370 |
30718 |
product |
51331 |
M |
0 |
|
|
0 |
|
|
|
|
57641 |
30719 |
product |
59601 |
M |
0 |
|
|
0 |
|
|
|
|
49367 |
30721 |
product |
51328 |
M |
1 |
|
|