Query time 0.00091
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "140.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "26.00"
},
"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": 26,
"rows_produced_per_join": 26,
"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 ('31069','31070','31071','31072','31074','31077','31079','31080','31081','31082','31083','31086','31087','31088','31089','31091')))",
"cost_info": {
"read_cost": "47.21",
"eval_cost": "5.20",
"prefix_cost": "52.41",
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "83.61",
"data_read_per_join": "19K"
},
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "114.81",
"data_read_per_join": "15K"
},
"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 |
|
|
|
|
48945 |
31080 |
product |
50906 |
M |
0 |
|
|
0 |
|
|
|
|
48947 |
31079 |
product |
50908 |
M |
0 |
|
|
0 |
|
|
|
|
48949 |
31077 |
product |
50910 |
M |
0 |
|
|
0 |
|
|
|
|
48954 |
31074 |
product |
50915 |
M |
0 |
|
|
0 |
|
|
|
|
48957 |
31072 |
product |
50918 |
M |
0 |
|
|
0 |
|
|
|
|
48959 |
31070 |
product |
50920 |
M |
0 |
|
|
0 |
|
|
|
|
48960 |
31069 |
product |
50921 |
M |
0 |
|
|
0 |
|
|
|
|
48962 |
31071 |
product |
50923 |
M |
0 |
|
|
0 |
|
|
|
|
49598 |
31091 |
product |
51559 |
M |
0 |
|
|
0 |
|
|
|
|
49602 |
31089 |
product |
51563 |
M |
0 |
|
|
0 |
|
|
|
|
49603 |
31088 |
product |
51564 |
M |
0 |
|
|
0 |
|
|
|
|
49604 |
31086 |
product |
51565 |
M |
0 |
|
|
0 |
|
|
|
|
49609 |
31083 |
product |
51570 |
M |
0 |
|
|
0 |
|
|
|
|
49611 |
31082 |
product |
51572 |
M |
0 |
|
|
0 |
|
|
|
|
49613 |
31081 |
product |
51574 |
M |
0 |
|
|
0 |
|
|
|
|
49729 |
31087 |
product |
51690 |
M |
0 |
|
|