Query time 0.00103
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "145.61"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "27.00"
},
"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": 27,
"rows_produced_per_join": 27,
"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 ('30960','30961','30962','30963','30964','30965','30966','30967','30968','30969','30970','30971','30972','30973','30974','30975')))",
"cost_info": {
"read_cost": "48.41",
"eval_cost": "5.40",
"prefix_cost": "53.81",
"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": 27,
"filtered": "100.00",
"cost_info": {
"read_cost": "27.00",
"eval_cost": "5.40",
"prefix_cost": "86.21",
"data_read_per_join": "20K"
},
"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": 27,
"filtered": "100.00",
"cost_info": {
"read_cost": "27.00",
"eval_cost": "5.40",
"prefix_cost": "118.61",
"data_read_per_join": "16K"
},
"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 |
|
|
|
|
49499 |
30969 |
product |
51460 |
M |
0 |
|
|
0 |
|
|
|
|
49501 |
30968 |
product |
51462 |
M |
0 |
|
|
0 |
|
|
|
|
49502 |
30967 |
product |
51463 |
M |
0 |
|
|
0 |
|
|
|
|
49505 |
30966 |
product |
51466 |
M |
0 |
|
|
0 |
|
|
|
|
49507 |
30965 |
product |
51468 |
M |
0 |
|
|
0 |
|
|
|
|
49509 |
30964 |
product |
51470 |
M |
0 |
|
|
0 |
|
|
|
|
49511 |
30963 |
product |
51472 |
M |
0 |
|
|
0 |
|
|
|
|
49513 |
30962 |
product |
51474 |
M |
0 |
|
|
0 |
|
|
|
|
49516 |
30961 |
product |
51477 |
M |
0 |
|
|
0 |
|
|
|
|
49517 |
30960 |
product |
51478 |
M |
0 |
|
|
0 |
|
|
|
|
49660 |
30973 |
product |
51621 |
M |
0 |
|
|
0 |
|
|
|
|
49661 |
30972 |
product |
51622 |
M |
0 |
|
|
0 |
|
|
|
|
49663 |
30971 |
product |
51624 |
M |
0 |
|
|
0 |
|
|
|
|
51692 |
30970 |
product |
53653 |
M |
0 |
|
|
0 |
|
|
|
|
51930 |
30975 |
product |
53891 |
M |
0 |
|
|
0 |
|
|
|
|
56500 |
30974 |
product |
58461 |
M |
0 |
|
|