Query time 0.00138
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "92.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "16.00"
},
"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": 16,
"rows_produced_per_join": 16,
"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 ('3028','3033','3038','3043','3067','3071','2942','2946','2951','2955','2959','2963','2972','2976','2980','2984')))",
"cost_info": {
"read_cost": "35.21",
"eval_cost": "3.20",
"prefix_cost": "38.41",
"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.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "57.61",
"data_read_per_join": "12K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "76.81",
"data_read_per_join": "9K"
},
"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 |
|
|
|
|
6382 |
2942 |
product |
8347 |
M |
0 |
|
|
0 |
|
|
|
|
6394 |
2946 |
product |
8359 |
M |
0 |
|
|
0 |
|
|
|
|
6928 |
3071 |
product |
8893 |
M |
0 |
|
|
0 |
|
|
|
|
7773 |
2951 |
product |
9738 |
M |
0 |
|
|
0 |
|
|
|
|
7781 |
2955 |
product |
9746 |
M |
0 |
|
|
0 |
|
|
|
|
7813 |
2959 |
product |
9778 |
M |
0 |
|
|
0 |
|
|
|
|
7925 |
2972 |
product |
9890 |
M |
0 |
|
|
0 |
|
|
|
|
7957 |
2976 |
product |
9922 |
M |
0 |
|
|
0 |
|
|
|
|
7989 |
2980 |
product |
9954 |
M |
0 |
|
|
0 |
|
|
|
|
8029 |
2984 |
product |
9994 |
M |
0 |
|
|
0 |
|
|
|
|
83644 |
3043 |
product |
9299 |
M |
0 |
|
|
0 |
|
|
|
|
83741 |
3033 |
product |
83541 |
M |
0 |
|
|
0 |
|
|
|
|
83770 |
3028 |
product |
83681 |
M |
0 |
|
|
0 |
|
|
|
|
83806 |
3067 |
product |
9384 |
M |
0 |
|
|
0 |
|
|
|
|
83966 |
2963 |
product |
13391 |
M |
0 |
|
|
0 |
|
|
|
|
7151 |
3038 |
product |
9116 |
M |
1 |
|
|