Query time 0.00171
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "112.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "20.00"
},
"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": 20,
"rows_produced_per_join": 20,
"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 ('14851','14852','14853','14854','14855','14856','14857','14858','14859','14860','14861','14862','14863','14864','14865','14866')))",
"cost_info": {
"read_cost": "40.01",
"eval_cost": "4.00",
"prefix_cost": "44.01",
"data_read_per_join": "1K"
},
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "68.01",
"data_read_per_join": "15K"
},
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "92.01",
"data_read_per_join": "11K"
},
"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 |
|
|
|
|
28759 |
14851 |
product |
30721 |
M |
0 |
|
|
0 |
|
|
|
|
28760 |
14852 |
product |
30722 |
M |
0 |
|
|
0 |
|
|
|
|
28761 |
14853 |
product |
30723 |
M |
0 |
|
|
0 |
|
|
|
|
28762 |
14854 |
product |
30724 |
M |
0 |
|
|
0 |
|
|
|
|
28763 |
14855 |
product |
30725 |
M |
0 |
|
|
0 |
|
|
|
|
28764 |
14856 |
product |
30726 |
M |
0 |
|
|
0 |
|
|
|
|
28765 |
14857 |
product |
30727 |
M |
0 |
|
|
0 |
|
|
|
|
28766 |
14858 |
product |
30728 |
M |
0 |
|
|
0 |
|
|
|
|
28767 |
14859 |
product |
30729 |
M |
0 |
|
|
0 |
|
|
|
|
28768 |
14860 |
product |
30730 |
M |
0 |
|
|
0 |
|
|
|
|
28769 |
14861 |
product |
30731 |
M |
0 |
|
|
0 |
|
|
|
|
28770 |
14862 |
product |
30732 |
M |
0 |
|
|
0 |
|
|
|
|
28771 |
14863 |
product |
30733 |
M |
0 |
|
|
0 |
|
|
|
|
28772 |
14864 |
product |
30734 |
M |
0 |
|
|
0 |
|
|
|
|
28773 |
14865 |
product |
30735 |
M |
0 |
|
|
0 |
|
|
|
|
28774 |
14866 |
product |
30736 |
M |
0 |
|
|