Query time 0.00137
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "184.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "35.00"
},
"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": 35,
"rows_produced_per_join": 35,
"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 ('29778','29779','29780','29781','29782','29783','29784','29785','29786','29787','29788','29789','29790','29791','29792','29793')))",
"cost_info": {
"read_cost": "58.01",
"eval_cost": "7.00",
"prefix_cost": "65.01",
"data_read_per_join": "3K"
},
"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": 35,
"filtered": "100.00",
"cost_info": {
"read_cost": "35.00",
"eval_cost": "7.00",
"prefix_cost": "107.01",
"data_read_per_join": "26K"
},
"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": 35,
"filtered": "100.00",
"cost_info": {
"read_cost": "35.00",
"eval_cost": "7.00",
"prefix_cost": "149.01",
"data_read_per_join": "20K"
},
"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 |
|
|
|
|
47342 |
29793 |
product |
49304 |
M |
0 |
|
|
0 |
|
|
|
|
47343 |
29792 |
product |
49305 |
M |
0 |
|
|
0 |
|
|
|
|
47652 |
29781 |
product |
49613 |
M |
0 |
|
|
0 |
|
|
|
|
47653 |
29780 |
product |
49614 |
M |
0 |
|
|
0 |
|
|
|
|
47654 |
29779 |
product |
49615 |
M |
0 |
|
|
0 |
|
|
|
|
47731 |
29791 |
product |
49692 |
M |
0 |
|
|
0 |
|
|
|
|
47733 |
29790 |
product |
49694 |
M |
0 |
|
|
0 |
|
|
|
|
47734 |
29789 |
product |
49695 |
M |
0 |
|
|
0 |
|
|
|
|
47735 |
29788 |
product |
49696 |
M |
0 |
|
|
0 |
|
|
|
|
47737 |
29786 |
product |
49698 |
M |
0 |
|
|
0 |
|
|
|
|
47738 |
29785 |
product |
49699 |
M |
0 |
|
|
0 |
|
|
|
|
47739 |
29784 |
product |
49700 |
M |
0 |
|
|
0 |
|
|
|
|
47740 |
29783 |
product |
49701 |
M |
0 |
|
|
0 |
|
|
|
|
47741 |
29782 |
product |
49702 |
M |
0 |
|
|
0 |
|
|
|
|
47742 |
29778 |
product |
49703 |
M |
0 |
|
|
0 |
|
|
|
|
47811 |
29787 |
product |
49772 |
M |
0 |
|
|