Query time 0.00096
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "164.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "31.00"
},
"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": 31,
"rows_produced_per_join": 31,
"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 ('31154','31155','31156','31157','31158','10387','10388','10389','10390','10391','10392','10393','10395','10396','10397','10398')))",
"cost_info": {
"read_cost": "53.21",
"eval_cost": "6.20",
"prefix_cost": "59.41",
"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": 31,
"filtered": "100.00",
"cost_info": {
"read_cost": "31.00",
"eval_cost": "6.20",
"prefix_cost": "96.61",
"data_read_per_join": "23K"
},
"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": 31,
"filtered": "100.00",
"cost_info": {
"read_cost": "31.00",
"eval_cost": "6.20",
"prefix_cost": "133.81",
"data_read_per_join": "18K"
},
"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 |
|
|
|
|
21251 |
10387 |
product |
23213 |
M |
0 |
|
|
0 |
|
|
|
|
21256 |
10388 |
product |
23218 |
M |
0 |
|
|
0 |
|
|
|
|
21259 |
10389 |
product |
23221 |
M |
0 |
|
|
0 |
|
|
|
|
21261 |
10390 |
product |
23223 |
M |
0 |
|
|
0 |
|
|
|
|
21264 |
10391 |
product |
23226 |
M |
0 |
|
|
0 |
|
|
|
|
21267 |
10392 |
product |
23229 |
M |
0 |
|
|
0 |
|
|
|
|
21270 |
10393 |
product |
23232 |
M |
0 |
|
|
0 |
|
|
|
|
21299 |
10395 |
product |
23261 |
M |
0 |
|
|
0 |
|
|
|
|
21301 |
10396 |
product |
23263 |
M |
0 |
|
|
0 |
|
|
|
|
21305 |
10397 |
product |
23267 |
M |
0 |
|
|
0 |
|
|
|
|
21309 |
10398 |
product |
23271 |
M |
0 |
|
|
0 |
|
|
|
|
49761 |
31154 |
product |
51722 |
M |
0 |
|
|
0 |
|
|
|
|
49762 |
31155 |
product |
51723 |
M |
0 |
|
|
0 |
|
|
|
|
49763 |
31156 |
product |
51724 |
M |
0 |
|
|
0 |
|
|
|
|
49764 |
31157 |
product |
51725 |
M |
0 |
|
|
0 |
|
|
|
|
49765 |
31158 |
product |
51726 |
M |
0 |
|
|