Query time 0.00091
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "112.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "20.00"
},
"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": 20,
"rows_produced_per_join": 20,
"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 ('13242','13243','13244','13245','13246','13247','13248','13249','13250','13252','13253','13254','13255','13256','13257','13258')))",
"cost_info": {
"read_cost": "40.01",
"eval_cost": "4.00",
"prefix_cost": "44.01",
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "68.01",
"data_read_per_join": "15K"
},
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "92.01",
"data_read_per_join": "11K"
},
"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 |
|
|
|
|
27043 |
13242 |
product |
29005 |
M |
0 |
|
|
0 |
|
|
|
|
27044 |
13243 |
product |
29006 |
M |
0 |
|
|
0 |
|
|
|
|
27045 |
13244 |
product |
29007 |
M |
0 |
|
|
0 |
|
|
|
|
27046 |
13245 |
product |
29008 |
M |
0 |
|
|
0 |
|
|
|
|
27047 |
13246 |
product |
29009 |
M |
0 |
|
|
0 |
|
|
|
|
27048 |
13247 |
product |
29010 |
M |
0 |
|
|
0 |
|
|
|
|
27049 |
13248 |
product |
29011 |
M |
0 |
|
|
0 |
|
|
|
|
27050 |
13249 |
product |
29012 |
M |
0 |
|
|
0 |
|
|
|
|
27051 |
13250 |
product |
29013 |
M |
0 |
|
|
0 |
|
|
|
|
27053 |
13252 |
product |
29015 |
M |
0 |
|
|
0 |
|
|
|
|
27054 |
13253 |
product |
29016 |
M |
0 |
|
|
0 |
|
|
|
|
27055 |
13254 |
product |
29017 |
M |
0 |
|
|
0 |
|
|
|
|
27056 |
13255 |
product |
29018 |
M |
0 |
|
|
0 |
|
|
|
|
27057 |
13256 |
product |
29019 |
M |
0 |
|
|
0 |
|
|
|
|
27058 |
13257 |
product |
29020 |
M |
0 |
|
|
0 |
|
|
|
|
27059 |
13258 |
product |
29021 |
M |
0 |
|
|