Query time 0.00084
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "270.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "53.00"
},
"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": 53,
"rows_produced_per_join": 53,
"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 ('30175','30176','30177','30178','30179','30180','30181','30182','30183','30184','30185','30186','30187','30188','30189','30190')))",
"cost_info": {
"read_cost": "79.61",
"eval_cost": "10.60",
"prefix_cost": "90.21",
"data_read_per_join": "4K"
},
"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": 53,
"filtered": "100.00",
"cost_info": {
"read_cost": "53.00",
"eval_cost": "10.60",
"prefix_cost": "153.81",
"data_read_per_join": "40K"
},
"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": 53,
"filtered": "100.00",
"cost_info": {
"read_cost": "53.00",
"eval_cost": "10.60",
"prefix_cost": "217.41",
"data_read_per_join": "31K"
},
"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 |
|
|
|
|
47927 |
30179 |
product |
49888 |
M |
0 |
|
|
0 |
|
|
|
|
47928 |
30178 |
product |
49889 |
M |
0 |
|
|
0 |
|
|
|
|
47929 |
30177 |
product |
49890 |
M |
0 |
|
|
0 |
|
|
|
|
47930 |
30176 |
product |
49891 |
M |
0 |
|
|
0 |
|
|
|
|
47931 |
30175 |
product |
49892 |
M |
0 |
|
|
0 |
|
|
|
|
48573 |
30186 |
product |
50534 |
M |
0 |
|
|
0 |
|
|
|
|
48575 |
30185 |
product |
50536 |
M |
0 |
|
|
0 |
|
|
|
|
48576 |
30184 |
product |
50537 |
M |
0 |
|
|
0 |
|
|
|
|
48578 |
30183 |
product |
50539 |
M |
0 |
|
|
0 |
|
|
|
|
48580 |
30182 |
product |
50541 |
M |
0 |
|
|
0 |
|
|
|
|
48581 |
30180 |
product |
50542 |
M |
0 |
|
|
0 |
|
|
|
|
48986 |
30181 |
product |
50947 |
M |
0 |
|
|
0 |
|
|
|
|
48987 |
30187 |
product |
50948 |
M |
0 |
|
|
0 |
|
|
|
|
48988 |
30188 |
product |
50949 |
M |
0 |
|
|
0 |
|
|
|
|
48989 |
30189 |
product |
50950 |
M |
0 |
|
|
0 |
|
|
|
|
48990 |
30190 |
product |
50951 |
M |
0 |
|
|