Query time 0.00093
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "188.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "36.00"
},
"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": 36,
"rows_produced_per_join": 36,
"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 ('30207','30208','30209','30210','30211','30212','30213','30214','30215','30216','30217','30218','30219','30220','30221','30222')))",
"cost_info": {
"read_cost": "59.21",
"eval_cost": "7.20",
"prefix_cost": "66.41",
"data_read_per_join": "3K"
},
"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": 36,
"filtered": "100.00",
"cost_info": {
"read_cost": "36.00",
"eval_cost": "7.20",
"prefix_cost": "109.61",
"data_read_per_join": "27K"
},
"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": 36,
"filtered": "100.00",
"cost_info": {
"read_cost": "36.00",
"eval_cost": "7.20",
"prefix_cost": "152.81",
"data_read_per_join": "21K"
},
"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 |
|
|
|
|
49113 |
30221 |
product |
51074 |
M |
0 |
|
|
0 |
|
|
|
|
49114 |
30220 |
product |
51075 |
M |
0 |
|
|
0 |
|
|
|
|
49115 |
30219 |
product |
51076 |
M |
0 |
|
|
0 |
|
|
|
|
49116 |
30218 |
product |
51077 |
M |
0 |
|
|
0 |
|
|
|
|
49117 |
30217 |
product |
51078 |
M |
0 |
|
|
0 |
|
|
|
|
49118 |
30216 |
product |
51079 |
M |
0 |
|
|
0 |
|
|
|
|
49119 |
30215 |
product |
51080 |
M |
0 |
|
|
0 |
|
|
|
|
49121 |
30214 |
product |
51082 |
M |
0 |
|
|
0 |
|
|
|
|
49122 |
30213 |
product |
51083 |
M |
0 |
|
|
0 |
|
|
|
|
49124 |
30212 |
product |
51085 |
M |
0 |
|
|
0 |
|
|
|
|
49125 |
30211 |
product |
51086 |
M |
0 |
|
|
0 |
|
|
|
|
49127 |
30210 |
product |
51088 |
M |
0 |
|
|
0 |
|
|
|
|
49129 |
30209 |
product |
51090 |
M |
0 |
|
|
0 |
|
|
|
|
49130 |
30208 |
product |
51091 |
M |
0 |
|
|
0 |
|
|
|
|
49131 |
30207 |
product |
51092 |
M |
0 |
|
|
0 |
|
|
|
|
51695 |
30222 |
product |
53656 |
M |
0 |
|
|