Query time 0.00110
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "150.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "28.00"
},
"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": 28,
"rows_produced_per_join": 28,
"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 ('37180','37181','37182','37183','37184','37185','37186','37187','37188','37189','37190','37191','37192','37193','37194','37195')))",
"cost_info": {
"read_cost": "49.61",
"eval_cost": "5.60",
"prefix_cost": "55.21",
"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": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "88.81",
"data_read_per_join": "21K"
},
"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": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "122.41",
"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 |
|
|
|
|
57789 |
37192 |
product |
59749 |
M |
0 |
|
|
0 |
|
|
|
|
57790 |
37191 |
product |
59750 |
M |
0 |
|
|
0 |
|
|
|
|
57791 |
37190 |
product |
59751 |
M |
0 |
|
|
0 |
|
|
|
|
57792 |
37189 |
product |
59752 |
M |
0 |
|
|
0 |
|
|
|
|
57793 |
37188 |
product |
59753 |
M |
0 |
|
|
0 |
|
|
|
|
57794 |
37187 |
product |
59754 |
M |
0 |
|
|
0 |
|
|
|
|
59154 |
37195 |
product |
61110 |
M |
0 |
|
|
0 |
|
|
|
|
59155 |
37194 |
product |
61111 |
M |
0 |
|
|
0 |
|
|
|
|
59156 |
37193 |
product |
61112 |
M |
0 |
|
|
0 |
|
|
|
|
59157 |
37186 |
product |
61113 |
M |
0 |
|
|
0 |
|
|
|
|
59159 |
37185 |
product |
61115 |
M |
0 |
|
|
0 |
|
|
|
|
59161 |
37184 |
product |
61117 |
M |
0 |
|
|
0 |
|
|
|
|
59162 |
37183 |
product |
61118 |
M |
0 |
|
|
0 |
|
|
|
|
59163 |
37182 |
product |
61119 |
M |
0 |
|
|
0 |
|
|
|
|
59167 |
37181 |
product |
61123 |
M |
0 |
|
|
0 |
|
|
|
|
59169 |
37180 |
product |
61125 |
M |
0 |
|
|