Query time 0.00061
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "28.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "5.00"
},
"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": 5,
"rows_produced_per_join": 5,
"filtered": "100.00",
"index_condition": "((`portal`.`q_images_links`.`object_type` = 'logos') and (`portal`.`q_images_links`.`type` = 'M') and (`portal`.`q_images_links`.`object_id` in ('15','27','28','29')))",
"cost_info": {
"read_cost": "10.01",
"eval_cost": "1.00",
"prefix_cost": "11.01",
"data_read_per_join": "480"
},
"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": 5,
"filtered": "100.00",
"cost_info": {
"read_cost": "5.00",
"eval_cost": "1.00",
"prefix_cost": "17.01",
"data_read_per_join": "3K"
},
"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": 5,
"filtered": "100.00",
"cost_info": {
"read_cost": "5.00",
"eval_cost": "1.00",
"prefix_cost": "23.01",
"data_read_per_join": "2K"
},
"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 |
2003 |
logo_zxwd-r0.png |
3983 |
1003 |
N |
10 |
15 |
logos |
0 |
M |
0 |
Qazaan |
2003 |
2044 |
qazaan-ar.png |
357 |
90 |
N |
67 |
27 |
logos |
0 |
M |
0 |
Qazaan |
2044 |
2045 |
favicon__1_.ico |
16 |
16 |
N |
68 |
28 |
logos |
0 |
M |
0 |
|
2045 |
2046 |
logo_v266-56_kxll-2y.png |
357 |
90 |
N |
69 |
29 |
logos |
0 |
M |
0 |
Qazaan |
2046 |