Query time 0.00097
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "140.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "26.00"
},
"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": 26,
"rows_produced_per_join": 26,
"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 ('115','116','117','118','119','120','121','122','123','124','125','126','127','128','129','130')))",
"cost_info": {
"read_cost": "47.21",
"eval_cost": "5.20",
"prefix_cost": "52.41",
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "83.61",
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "114.81",
"data_read_per_join": "15K"
},
"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 |
|
|
|
|
262 |
115 |
product |
2239 |
M |
0 |
|
|
0 |
|
|
|
|
263 |
116 |
product |
2240 |
M |
0 |
|
|
0 |
|
|
|
|
265 |
117 |
product |
2242 |
M |
0 |
|
|
0 |
|
|
|
|
267 |
118 |
product |
2244 |
M |
0 |
|
|
0 |
|
|
|
|
271 |
120 |
product |
2248 |
M |
0 |
|
|
0 |
|
|
|
|
273 |
121 |
product |
2250 |
M |
0 |
|
|
0 |
|
|
|
|
275 |
122 |
product |
2252 |
M |
0 |
|
|
0 |
|
|
|
|
277 |
123 |
product |
2254 |
M |
0 |
|
|
0 |
|
|
|
|
279 |
124 |
product |
2256 |
M |
0 |
|
|
0 |
|
|
|
|
281 |
125 |
product |
2258 |
M |
0 |
|
|
0 |
|
|
|
|
283 |
126 |
product |
2260 |
M |
0 |
|
|
0 |
|
|
|
|
285 |
127 |
product |
2262 |
M |
0 |
|
|
0 |
|
|
|
|
287 |
128 |
product |
2264 |
M |
0 |
|
|
0 |
|
|
|
|
289 |
129 |
product |
2266 |
M |
0 |
|
|
0 |
|
|
|
|
291 |
130 |
product |
2268 |
M |
0 |
|
|
0 |
|
|
|
|
81491 |
119 |
product |
83434 |
M |
0 |
|
|