Query time 0.00392
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 ('13043','13044','13045','13046','13047','13048','13049','13050','13051','13052','13053','13054','13055','13056','13057','13058')))",
"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 |
|
|
|
|
26679 |
13043 |
product |
28641 |
M |
0 |
|
|
0 |
|
|
|
|
26680 |
13044 |
product |
28642 |
M |
0 |
|
|
0 |
|
|
|
|
26681 |
13045 |
product |
28643 |
M |
0 |
|
|
0 |
|
|
|
|
26682 |
13046 |
product |
28644 |
M |
0 |
|
|
0 |
|
|
|
|
26683 |
13047 |
product |
28645 |
M |
0 |
|
|
0 |
|
|
|
|
26684 |
13048 |
product |
28646 |
M |
0 |
|
|
0 |
|
|
|
|
26685 |
13049 |
product |
28647 |
M |
0 |
|
|
0 |
|
|
|
|
26686 |
13050 |
product |
28648 |
M |
0 |
|
|
0 |
|
|
|
|
26687 |
13051 |
product |
28649 |
M |
0 |
|
|
0 |
|
|
|
|
26688 |
13052 |
product |
28650 |
M |
0 |
|
|
0 |
|
|
|
|
26689 |
13053 |
product |
28651 |
M |
0 |
|
|
0 |
|
|
|
|
26690 |
13054 |
product |
28652 |
M |
0 |
|
|
0 |
|
|
|
|
26691 |
13055 |
product |
28653 |
M |
0 |
|
|
0 |
|
|
|
|
26692 |
13056 |
product |
28654 |
M |
0 |
|
|
0 |
|
|
|
|
26693 |
13057 |
product |
28655 |
M |
0 |
|
|
0 |
|
|
|
|
26694 |
13058 |
product |
28656 |
M |
0 |
|
|