Query time 0.00153
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "92.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "16.00"
},
"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": 16,
"rows_produced_per_join": 16,
"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 ('9549','9550','9551','9552','9553','9554','9555','9556','9557','9558','9559','9560','9561','9562','9563','9564')))",
"cost_info": {
"read_cost": "35.21",
"eval_cost": "3.20",
"prefix_cost": "38.41",
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "57.61",
"data_read_per_join": "12K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "76.81",
"data_read_per_join": "9K"
},
"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 |
|
|
|
|
20373 |
9549 |
product |
22335 |
M |
0 |
|
|
0 |
|
|
|
|
20374 |
9550 |
product |
22336 |
M |
0 |
|
|
0 |
|
|
|
|
20375 |
9551 |
product |
22337 |
M |
0 |
|
|
0 |
|
|
|
|
20376 |
9552 |
product |
22338 |
M |
0 |
|
|
0 |
|
|
|
|
20377 |
9553 |
product |
22339 |
M |
0 |
|
|
0 |
|
|
|
|
20378 |
9554 |
product |
22340 |
M |
0 |
|
|
0 |
|
|
|
|
20379 |
9555 |
product |
22341 |
M |
0 |
|
|
0 |
|
|
|
|
20381 |
9557 |
product |
22343 |
M |
0 |
|
|
0 |
|
|
|
|
20382 |
9558 |
product |
22344 |
M |
0 |
|
|
0 |
|
|
|
|
20383 |
9559 |
product |
22345 |
M |
0 |
|
|
0 |
|
|
|
|
20384 |
9560 |
product |
22346 |
M |
0 |
|
|
0 |
|
|
|
|
20385 |
9561 |
product |
22347 |
M |
0 |
|
|
0 |
|
|
|
|
20386 |
9562 |
product |
22348 |
M |
0 |
|
|
0 |
|
|
|
|
81763 |
9556 |
product |
83706 |
M |
0 |
|
|
0 |
|
|
|
|
83089 |
9563 |
product |
85032 |
M |
0 |
|
|
0 |
|
|
|
|
26042 |
9564 |
product |
28004 |
M |
2 |
|
|