Query time 0.00093
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "155.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "29.00"
},
"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": 29,
"rows_produced_per_join": 29,
"filtered": "100.00",
"index_condition": "((`portal`.`q_images_links`.`object_type` = 'product') and (`portal`.`q_images_links`.`type` = 'A') and (`portal`.`q_images_links`.`object_id` in ('131','62','63','64','65','66','67','68','69','70','71','72','73','74','75','76')))",
"cost_info": {
"read_cost": "50.81",
"eval_cost": "5.80",
"prefix_cost": "56.61",
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "91.41",
"data_read_per_join": "22K"
},
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "126.21",
"data_read_per_join": "17K"
},
"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 |
|
|
|
|
155 |
62 |
product |
2132 |
A |
10 |
|
|
0 |
|
|
|
|
157 |
63 |
product |
2134 |
A |
10 |
|
|
0 |
|
|
|
|
159 |
64 |
product |
2136 |
A |
10 |
|
|
0 |
|
|
|
|
161 |
65 |
product |
2138 |
A |
10 |
|
|
0 |
|
|
|
|
163 |
66 |
product |
2140 |
A |
10 |
|
|
0 |
|
|
|
|
165 |
67 |
product |
2142 |
A |
10 |
|
|
0 |
|
|
|
|
167 |
68 |
product |
2144 |
A |
10 |
|
|
0 |
|
|
|
|
169 |
69 |
product |
2146 |
A |
10 |
|
|
0 |
|
|
|
|
171 |
70 |
product |
2148 |
A |
10 |
|
|
0 |
|
|
|
|
173 |
71 |
product |
2150 |
A |
10 |
|
|
0 |
|
|
|
|
175 |
72 |
product |
2152 |
A |
10 |
|
|
0 |
|
|
|
|
177 |
73 |
product |
2154 |
A |
10 |
|
|
0 |
|
|
|
|
179 |
74 |
product |
2156 |
A |
10 |
|
|
0 |
|
|
|
|
181 |
75 |
product |
2158 |
A |
10 |
|
|
0 |
|
|
|
|
183 |
76 |
product |
2160 |
A |
10 |
|
|
0 |
|
|
|
|
294 |
131 |
product |
2271 |
A |
10 |
|
|