Query time 0.00089
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "73.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "14.00"
},
"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": 14,
"rows_produced_per_join": 14,
"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 ('47526','47527','47532','47534','47538','47546')))",
"cost_info": {
"read_cost": "22.81",
"eval_cost": "2.80",
"prefix_cost": "25.61",
"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.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 14,
"filtered": "100.00",
"cost_info": {
"read_cost": "14.00",
"eval_cost": "2.80",
"prefix_cost": "42.41",
"data_read_per_join": "10K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"is_high_res"
],
"attached_condition": "<if>(is_not_null_compl(q_images), (`portal`.`q_images_links`.`detailed_id` = `portal`.`q_images`.`image_id`), true)"
}
},
{
"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": 14,
"filtered": "100.00",
"cost_info": {
"read_cost": "14.00",
"eval_cost": "2.80",
"prefix_cost": "59.21",
"data_read_per_join": "8K"
},
"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 |
81bP23bDdGL._AC_SL1500_.jpg |
1500 |
613 |
N |
78056 |
47526 |
product |
79999 |
M |
0 |
|
79999 |
0 |
61VzLpNEC6L._AC_SL1500_.jpg |
1312 |
717 |
N |
78057 |
47527 |
product |
80000 |
M |
0 |
|
80000 |
0 |
816FD9dECWL._AC_SL1500_.jpg |
1500 |
1355 |
N |
78073 |
47538 |
product |
80016 |
M |
0 |
|
80016 |
0 |
10272.970.jpg |
519 |
519 |
N |
78103 |
47546 |
product |
80046 |
M |
0 |
|
80046 |
0 |
714VV-eRB2L._AC_SL1500_.jpg |
1493 |
1500 |
N |
78125 |
47532 |
product |
80068 |
M |
0 |
|
80068 |
0 |
product_44711_1_thumb.jpg |
400 |
400 |
N |
78126 |
47534 |
product |
80069 |
M |
0 |
|
80069 |