Query time 0.00100
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 ('37131','37132','37133','37134','37135','37136','37137','37138','37139','37140','37141','37142','37143','37144','37145','37146')))",
"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 |
|
|
|
|
58546 |
37145 |
product |
60502 |
M |
0 |
|
|
0 |
|
|
|
|
59184 |
37144 |
product |
61140 |
M |
0 |
|
|
0 |
|
|
|
|
59185 |
37143 |
product |
61141 |
M |
0 |
|
|
0 |
|
|
|
|
59189 |
37142 |
product |
61145 |
M |
0 |
|
|
0 |
|
|
|
|
59192 |
37141 |
product |
61148 |
M |
0 |
|
|
0 |
|
|
|
|
59194 |
37140 |
product |
61150 |
M |
0 |
|
|
0 |
|
|
|
|
59195 |
37139 |
product |
61151 |
M |
0 |
|
|
0 |
|
|
|
|
59196 |
37138 |
product |
61152 |
M |
0 |
|
|
0 |
|
|
|
|
59197 |
37137 |
product |
61153 |
M |
0 |
|
|
0 |
|
|
|
|
59198 |
37136 |
product |
61154 |
M |
0 |
|
|
0 |
|
|
|
|
59200 |
37134 |
product |
61156 |
M |
0 |
|
|
0 |
|
|
|
|
59201 |
37133 |
product |
61157 |
M |
0 |
|
|
0 |
|
|
|
|
59202 |
37132 |
product |
61158 |
M |
0 |
|
|
0 |
|
|
|
|
59203 |
37131 |
product |
61159 |
M |
0 |
|
|
0 |
|
|
|
|
59188 |
37146 |
product |
61144 |
M |
1 |
|
|
0 |
|
|
|
|
59199 |
37135 |
product |
61155 |
M |
1 |
|
|