Query time 0.00088
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "155.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "29.00"
},
"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": 29,
"rows_produced_per_join": 29,
"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 ('37341','37342','37343','37344','37345','37346','37347','37348','37349','37350','37351','37352','37353','37354','37355','37356')))",
"cost_info": {
"read_cost": "50.81",
"eval_cost": "5.80",
"prefix_cost": "56.61",
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "91.41",
"data_read_per_join": "22K"
},
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "126.21",
"data_read_per_join": "17K"
},
"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 |
|
|
|
|
58508 |
37341 |
product |
60464 |
M |
0 |
|
|
0 |
|
|
|
|
58511 |
37342 |
product |
60467 |
M |
0 |
|
|
0 |
|
|
|
|
58514 |
37343 |
product |
60470 |
M |
0 |
|
|
0 |
|
|
|
|
58515 |
37344 |
product |
60471 |
M |
0 |
|
|
0 |
|
|
|
|
58527 |
37346 |
product |
60483 |
M |
0 |
|
|
0 |
|
|
|
|
58528 |
37347 |
product |
60484 |
M |
0 |
|
|
0 |
|
|
|
|
58530 |
37348 |
product |
60486 |
M |
0 |
|
|
0 |
|
|
|
|
58532 |
37349 |
product |
60488 |
M |
0 |
|
|
0 |
|
|
|
|
58535 |
37350 |
product |
60491 |
M |
0 |
|
|
0 |
|
|
|
|
58538 |
37352 |
product |
60494 |
M |
0 |
|
|
0 |
|
|
|
|
58539 |
37353 |
product |
60495 |
M |
0 |
|
|
0 |
|
|
|
|
58540 |
37354 |
product |
60496 |
M |
0 |
|
|
0 |
|
|
|
|
58549 |
37356 |
product |
60505 |
M |
0 |
|
|
0 |
|
|
|
|
58553 |
37355 |
product |
60509 |
M |
0 |
|
|
0 |
|
|
|
|
58560 |
37345 |
product |
60516 |
M |
0 |
|
|
0 |
|
|
|
|
59190 |
37351 |
product |
61146 |
M |
0 |
|
|