Query time 0.00099
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "136.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "25.00"
},
"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": 25,
"rows_produced_per_join": 25,
"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 ('171','172','173','132','133','134','135','136','137','138','139','140','141','142','143','144')))",
"cost_info": {
"read_cost": "46.01",
"eval_cost": "5.00",
"prefix_cost": "51.01",
"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": 25,
"filtered": "100.00",
"cost_info": {
"read_cost": "25.00",
"eval_cost": "5.00",
"prefix_cost": "81.01",
"data_read_per_join": "19K"
},
"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": 25,
"filtered": "100.00",
"cost_info": {
"read_cost": "25.00",
"eval_cost": "5.00",
"prefix_cost": "111.01",
"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 |
|
|
|
|
295 |
132 |
product |
2272 |
M |
0 |
|
|
0 |
|
|
|
|
297 |
133 |
product |
2274 |
M |
0 |
|
|
0 |
|
|
|
|
299 |
134 |
product |
2276 |
M |
0 |
|
|
0 |
|
|
|
|
301 |
135 |
product |
2278 |
M |
0 |
|
|
0 |
|
|
|
|
303 |
136 |
product |
2280 |
M |
0 |
|
|
0 |
|
|
|
|
305 |
137 |
product |
2282 |
M |
0 |
|
|
0 |
|
|
|
|
307 |
138 |
product |
2284 |
M |
0 |
|
|
0 |
|
|
|
|
308 |
139 |
product |
2285 |
M |
0 |
|
|
0 |
|
|
|
|
312 |
141 |
product |
2289 |
M |
0 |
|
|
0 |
|
|
|
|
314 |
142 |
product |
2291 |
M |
0 |
|
|
0 |
|
|
|
|
316 |
143 |
product |
2293 |
M |
0 |
|
|
0 |
|
|
|
|
318 |
144 |
product |
2295 |
M |
0 |
|
|
0 |
|
|
|
|
371 |
171 |
product |
2348 |
M |
0 |
|
|
0 |
|
|
|
|
373 |
172 |
product |
2350 |
M |
0 |
|
|
0 |
|
|
|
|
375 |
173 |
product |
2352 |
M |
0 |
|
|
0 |
|
|
|
|
81410 |
140 |
product |
83353 |
M |
11 |
|
|