Query time 0.00089
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "131.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "24.00"
},
"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": 24,
"rows_produced_per_join": 24,
"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 ('236','237','238','239','240','241','242','243','244','245','199','200','201','202','203','204')))",
"cost_info": {
"read_cost": "44.81",
"eval_cost": "4.80",
"prefix_cost": "49.61",
"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": 24,
"filtered": "100.00",
"cost_info": {
"read_cost": "24.00",
"eval_cost": "4.80",
"prefix_cost": "78.41",
"data_read_per_join": "18K"
},
"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": 24,
"filtered": "100.00",
"cost_info": {
"read_cost": "24.00",
"eval_cost": "4.80",
"prefix_cost": "107.21",
"data_read_per_join": "14K"
},
"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 |
|
|
|
|
434 |
199 |
product |
2411 |
M |
0 |
|
|
0 |
|
|
|
|
436 |
200 |
product |
2413 |
M |
0 |
|
|
0 |
|
|
|
|
438 |
201 |
product |
2415 |
M |
0 |
|
|
0 |
|
|
|
|
440 |
202 |
product |
2417 |
M |
0 |
|
|
0 |
|
|
|
|
443 |
204 |
product |
2420 |
M |
0 |
|
|
0 |
|
|
|
|
487 |
236 |
product |
2464 |
M |
0 |
|
|
0 |
|
|
|
|
489 |
237 |
product |
2466 |
M |
0 |
|
|
0 |
|
|
|
|
491 |
238 |
product |
2468 |
M |
0 |
|
|
0 |
|
|
|
|
493 |
239 |
product |
2470 |
M |
0 |
|
|
0 |
|
|
|
|
497 |
241 |
product |
2474 |
M |
0 |
|
|
0 |
|
|
|
|
499 |
242 |
product |
2476 |
M |
0 |
|
|
0 |
|
|
|
|
501 |
243 |
product |
2478 |
M |
0 |
|
|
0 |
|
|
|
|
503 |
244 |
product |
2480 |
M |
0 |
|
|
0 |
|
|
|
|
505 |
245 |
product |
2482 |
M |
0 |
|
|
0 |
|
|
|
|
541 |
203 |
product |
2518 |
M |
0 |
|
|
0 |
|
|
|
|
81470 |
240 |
product |
83413 |
M |
0 |
|
|