Query time 0.00096
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "107.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "19.00"
},
"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": 19,
"rows_produced_per_join": 19,
"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 ('14433','14434','14435','14436','14437','14438','14439','14440','14441','14442','14443','14444','14445','14446','14447','14448')))",
"cost_info": {
"read_cost": "38.81",
"eval_cost": "3.80",
"prefix_cost": "42.61",
"data_read_per_join": "1K"
},
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "65.41",
"data_read_per_join": "14K"
},
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "88.21",
"data_read_per_join": "11K"
},
"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 |
|
|
|
|
28341 |
14433 |
product |
30303 |
M |
0 |
|
|
0 |
|
|
|
|
28342 |
14434 |
product |
30304 |
M |
0 |
|
|
0 |
|
|
|
|
28343 |
14435 |
product |
30305 |
M |
0 |
|
|
0 |
|
|
|
|
28344 |
14436 |
product |
30306 |
M |
0 |
|
|
0 |
|
|
|
|
28345 |
14437 |
product |
30307 |
M |
0 |
|
|
0 |
|
|
|
|
28346 |
14438 |
product |
30308 |
M |
0 |
|
|
0 |
|
|
|
|
28347 |
14439 |
product |
30309 |
M |
0 |
|
|
0 |
|
|
|
|
28348 |
14440 |
product |
30310 |
M |
0 |
|
|
0 |
|
|
|
|
28349 |
14441 |
product |
30311 |
M |
0 |
|
|
0 |
|
|
|
|
28350 |
14442 |
product |
30312 |
M |
0 |
|
|
0 |
|
|
|
|
28351 |
14443 |
product |
30313 |
M |
0 |
|
|
0 |
|
|
|
|
28352 |
14444 |
product |
30314 |
M |
0 |
|
|
0 |
|
|
|
|
28353 |
14445 |
product |
30315 |
M |
0 |
|
|
0 |
|
|
|
|
28354 |
14446 |
product |
30316 |
M |
0 |
|
|
0 |
|
|
|
|
28355 |
14447 |
product |
30317 |
M |
0 |
|
|
0 |
|
|
|
|
28356 |
14448 |
product |
30318 |
M |
0 |
|
|