Query time 0.00083
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 ('15221','15222','15223','15224','15225','15226','15227','15228','15229','15230','15231','15232','15233','15234','15235','15236')))",
"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 |
|
|
|
|
29122 |
15221 |
product |
31084 |
M |
0 |
|
|
0 |
|
|
|
|
29123 |
15222 |
product |
31085 |
M |
0 |
|
|
0 |
|
|
|
|
29124 |
15223 |
product |
31086 |
M |
0 |
|
|
0 |
|
|
|
|
29125 |
15224 |
product |
31087 |
M |
0 |
|
|
0 |
|
|
|
|
29126 |
15225 |
product |
31088 |
M |
0 |
|
|
0 |
|
|
|
|
29127 |
15226 |
product |
31089 |
M |
0 |
|
|
0 |
|
|
|
|
29128 |
15227 |
product |
31090 |
M |
0 |
|
|
0 |
|
|
|
|
29129 |
15228 |
product |
31091 |
M |
0 |
|
|
0 |
|
|
|
|
29130 |
15229 |
product |
31092 |
M |
0 |
|
|
0 |
|
|
|
|
29131 |
15230 |
product |
31093 |
M |
0 |
|
|
0 |
|
|
|
|
29132 |
15231 |
product |
31094 |
M |
0 |
|
|
0 |
|
|
|
|
29133 |
15232 |
product |
31095 |
M |
0 |
|
|
0 |
|
|
|
|
29134 |
15233 |
product |
31096 |
M |
0 |
|
|
0 |
|
|
|
|
29135 |
15234 |
product |
31097 |
M |
0 |
|
|
0 |
|
|
|
|
29136 |
15235 |
product |
31098 |
M |
0 |
|
|
0 |
|
|
|
|
29137 |
15236 |
product |
31099 |
M |
0 |
|
|