Query time 0.00112
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "92.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "16.00"
},
"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": 16,
"rows_produced_per_join": 16,
"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 ('2723','2725','2726','2727','2728','2729','2730','2731','2732','2733','2734','2735','2694','2695','2696','2697')))",
"cost_info": {
"read_cost": "35.21",
"eval_cost": "3.20",
"prefix_cost": "38.41",
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "57.61",
"data_read_per_join": "12K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "76.81",
"data_read_per_join": "9K"
},
"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 |
|
|
|
|
6041 |
2694 |
product |
8012 |
M |
0 |
|
|
0 |
|
|
|
|
6043 |
2695 |
product |
8014 |
M |
0 |
|
|
0 |
|
|
|
|
6044 |
2696 |
product |
8015 |
M |
0 |
|
|
0 |
|
|
|
|
6066 |
2723 |
product |
8037 |
M |
0 |
|
|
0 |
|
|
|
|
6068 |
2725 |
product |
8039 |
M |
0 |
|
|
0 |
|
|
|
|
6069 |
2726 |
product |
8040 |
M |
0 |
|
|
0 |
|
|
|
|
6070 |
2727 |
product |
8041 |
M |
0 |
|
|
0 |
|
|
|
|
6071 |
2728 |
product |
8042 |
M |
0 |
|
|
0 |
|
|
|
|
6072 |
2729 |
product |
8043 |
M |
0 |
|
|
0 |
|
|
|
|
6073 |
2730 |
product |
8044 |
M |
0 |
|
|
0 |
|
|
|
|
6074 |
2731 |
product |
8045 |
M |
0 |
|
|
0 |
|
|
|
|
6075 |
2732 |
product |
8046 |
M |
0 |
|
|
0 |
|
|
|
|
6076 |
2733 |
product |
8047 |
M |
0 |
|
|
0 |
|
|
|
|
6077 |
2734 |
product |
8048 |
M |
0 |
|
|
0 |
|
|
|
|
6078 |
2735 |
product |
8049 |
M |
0 |
|
|
0 |
|
|
|
|
81603 |
2697 |
product |
83546 |
M |
1 |
|
|