Query time 0.00098
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "150.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "28.00"
},
"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": 28,
"rows_produced_per_join": 28,
"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 ('30750','30751','30752','30753','30754','30755','30756','30757','30758','30759','30760','30761','30762','30763','30764','30765')))",
"cost_info": {
"read_cost": "49.61",
"eval_cost": "5.60",
"prefix_cost": "55.21",
"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": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "88.81",
"data_read_per_join": "21K"
},
"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": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "122.41",
"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 |
|
|
|
|
48788 |
30765 |
product |
50749 |
M |
0 |
|
|
0 |
|
|
|
|
48792 |
30764 |
product |
50753 |
M |
0 |
|
|
0 |
|
|
|
|
48793 |
30763 |
product |
50754 |
M |
0 |
|
|
0 |
|
|
|
|
48805 |
30762 |
product |
50766 |
M |
0 |
|
|
0 |
|
|
|
|
48806 |
30761 |
product |
50767 |
M |
0 |
|
|
0 |
|
|
|
|
48808 |
30760 |
product |
50769 |
M |
0 |
|
|
0 |
|
|
|
|
48809 |
30759 |
product |
50770 |
M |
0 |
|
|
0 |
|
|
|
|
48810 |
30758 |
product |
50771 |
M |
0 |
|
|
0 |
|
|
|
|
48811 |
30757 |
product |
50772 |
M |
0 |
|
|
0 |
|
|
|
|
48812 |
30756 |
product |
50773 |
M |
0 |
|
|
0 |
|
|
|
|
48813 |
30755 |
product |
50774 |
M |
0 |
|
|
0 |
|
|
|
|
48814 |
30753 |
product |
50775 |
M |
0 |
|
|
0 |
|
|
|
|
48815 |
30752 |
product |
50776 |
M |
0 |
|
|
0 |
|
|
|
|
48816 |
30751 |
product |
50777 |
M |
0 |
|
|
0 |
|
|
|
|
48817 |
30750 |
product |
50778 |
M |
0 |
|
|
0 |
|
|
|
|
65519 |
30754 |
product |
67470 |
M |
0 |
|
|