Query time 0.00091
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 ('30992','30993','30994','30995','30996','30997','30998','30999','31000','31001','31002','31003','31005','31006','31007','31008')))",
"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 |
|
|
|
|
49353 |
31007 |
product |
51314 |
M |
0 |
|
|
0 |
|
|
|
|
49355 |
31006 |
product |
51316 |
M |
0 |
|
|
0 |
|
|
|
|
49361 |
31005 |
product |
51322 |
M |
0 |
|
|
0 |
|
|
|
|
49378 |
31003 |
product |
51339 |
M |
0 |
|
|
0 |
|
|
|
|
49380 |
31002 |
product |
51341 |
M |
0 |
|
|
0 |
|
|
|
|
49383 |
30999 |
product |
51344 |
M |
0 |
|
|
0 |
|
|
|
|
49386 |
30998 |
product |
51347 |
M |
0 |
|
|
0 |
|
|
|
|
49391 |
30996 |
product |
51352 |
M |
0 |
|
|
0 |
|
|
|
|
49394 |
30995 |
product |
51355 |
M |
0 |
|
|
0 |
|
|
|
|
49395 |
30994 |
product |
51356 |
M |
0 |
|
|
0 |
|
|
|
|
49398 |
30992 |
product |
51359 |
M |
0 |
|
|
0 |
|
|
|
|
49650 |
31001 |
product |
51611 |
M |
0 |
|
|
0 |
|
|
|
|
49652 |
30997 |
product |
51613 |
M |
0 |
|
|
0 |
|
|
|
|
65529 |
31000 |
product |
67480 |
M |
0 |
|
|
0 |
|
|
|
|
81782 |
30993 |
product |
83725 |
M |
0 |
|
|