Query time 0.00111
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "145.61"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "27.00"
},
"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": 27,
"rows_produced_per_join": 27,
"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 ('36735','36736','36737','36738','36739','36740','36741','36742','36743','36744','36745','36746','36747','36748','36749','36750')))",
"cost_info": {
"read_cost": "48.41",
"eval_cost": "5.40",
"prefix_cost": "53.81",
"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": 27,
"filtered": "100.00",
"cost_info": {
"read_cost": "27.00",
"eval_cost": "5.40",
"prefix_cost": "86.21",
"data_read_per_join": "20K"
},
"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": 27,
"filtered": "100.00",
"cost_info": {
"read_cost": "27.00",
"eval_cost": "5.40",
"prefix_cost": "118.61",
"data_read_per_join": "16K"
},
"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 |
|
|
|
|
58903 |
36742 |
product |
60859 |
M |
0 |
|
|
0 |
|
|
|
|
58905 |
36741 |
product |
60861 |
M |
0 |
|
|
0 |
|
|
|
|
58906 |
36740 |
product |
60862 |
M |
0 |
|
|
0 |
|
|
|
|
58907 |
36739 |
product |
60863 |
M |
0 |
|
|
0 |
|
|
|
|
58909 |
36738 |
product |
60865 |
M |
0 |
|
|
0 |
|
|
|
|
58911 |
36737 |
product |
60867 |
M |
0 |
|
|
0 |
|
|
|
|
58914 |
36735 |
product |
60870 |
M |
0 |
|
|
0 |
|
|
|
|
60024 |
36746 |
product |
61980 |
M |
0 |
|
|
0 |
|
|
|
|
60102 |
36745 |
product |
62058 |
M |
0 |
|
|
0 |
|
|
|
|
60141 |
36744 |
product |
62097 |
M |
0 |
|
|
0 |
|
|
|
|
60187 |
36743 |
product |
62143 |
M |
0 |
|
|
0 |
|
|
|
|
61880 |
36749 |
product |
63836 |
M |
0 |
|
|
0 |
|
|
|
|
61881 |
36748 |
product |
63837 |
M |
0 |
|
|
0 |
|
|
|
|
67641 |
36747 |
product |
69592 |
M |
0 |
|
|
0 |
|
|
|
|
83000 |
36736 |
product |
84943 |
M |
0 |
|
|
0 |
|
|
|
|
85652 |
36750 |
product |
70587 |
M |
0 |
|
|