Query time 0.00119
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 ('6950','6951','6952','6953','6954','6955','6956','6112','6113','6114','6115','6116','6117','6118','6119','6120')))",
"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 |
|
|
|
|
11527 |
6112 |
product |
13489 |
M |
0 |
|
|
0 |
|
|
|
|
11529 |
6113 |
product |
13491 |
M |
0 |
|
|
0 |
|
|
|
|
11530 |
6114 |
product |
13492 |
M |
0 |
|
|
0 |
|
|
|
|
11531 |
6115 |
product |
13493 |
M |
0 |
|
|
0 |
|
|
|
|
11532 |
6116 |
product |
13494 |
M |
0 |
|
|
0 |
|
|
|
|
11533 |
6117 |
product |
13495 |
M |
0 |
|
|
0 |
|
|
|
|
11535 |
6119 |
product |
13497 |
M |
0 |
|
|
0 |
|
|
|
|
11536 |
6118 |
product |
13498 |
M |
0 |
|
|
0 |
|
|
|
|
11537 |
6120 |
product |
13499 |
M |
0 |
|
|
0 |
|
|
|
|
15144 |
6950 |
product |
17106 |
M |
0 |
|
|
0 |
|
|
|
|
15147 |
6951 |
product |
17109 |
M |
0 |
|
|
0 |
|
|
|
|
15148 |
6952 |
product |
17110 |
M |
0 |
|
|
0 |
|
|
|
|
15149 |
6953 |
product |
17111 |
M |
0 |
|
|
0 |
|
|
|
|
15150 |
6954 |
product |
17112 |
M |
0 |
|
|
0 |
|
|
|
|
15152 |
6955 |
product |
17114 |
M |
0 |
|
|
0 |
|
|
|
|
15154 |
6956 |
product |
17116 |
M |
0 |
|
|