Query time 0.00101
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 ('14931','14932','14933','14934','14935','14936','14937','14938','14939','14940','14941','14942','14943','14944','15202','15203')))",
"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 |
|
|
|
|
28839 |
14931 |
product |
30801 |
M |
0 |
|
|
0 |
|
|
|
|
28840 |
14932 |
product |
30802 |
M |
0 |
|
|
0 |
|
|
|
|
28841 |
14933 |
product |
30803 |
M |
0 |
|
|
0 |
|
|
|
|
28842 |
14934 |
product |
30804 |
M |
0 |
|
|
0 |
|
|
|
|
28843 |
14935 |
product |
30805 |
M |
0 |
|
|
0 |
|
|
|
|
28844 |
14936 |
product |
30806 |
M |
0 |
|
|
0 |
|
|
|
|
28845 |
14937 |
product |
30807 |
M |
0 |
|
|
0 |
|
|
|
|
28847 |
14939 |
product |
30809 |
M |
0 |
|
|
0 |
|
|
|
|
28848 |
14940 |
product |
30810 |
M |
0 |
|
|
0 |
|
|
|
|
28849 |
14941 |
product |
30811 |
M |
0 |
|
|
0 |
|
|
|
|
28850 |
14942 |
product |
30812 |
M |
0 |
|
|
0 |
|
|
|
|
28851 |
14943 |
product |
30813 |
M |
0 |
|
|
0 |
|
|
|
|
28852 |
14944 |
product |
30814 |
M |
0 |
|
|
0 |
|
|
|
|
29104 |
15202 |
product |
31066 |
M |
0 |
|
|
0 |
|
|
|
|
29105 |
15203 |
product |
31067 |
M |
0 |
|
|
0 |
|
|
|
|
82940 |
14938 |
product |
84883 |
M |
0 |
|
|