Query time 0.00098
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 ('30223','30224','30225','30226','30227','30228','30229','30230','30231','30232','30233','30234','30235','30236','30237','30238')))",
"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 |
|
|
|
|
49089 |
30238 |
product |
51050 |
M |
0 |
|
|
0 |
|
|
|
|
49090 |
30237 |
product |
51051 |
M |
0 |
|
|
0 |
|
|
|
|
49091 |
30236 |
product |
51052 |
M |
0 |
|
|
0 |
|
|
|
|
49093 |
30235 |
product |
51054 |
M |
0 |
|
|
0 |
|
|
|
|
49094 |
30234 |
product |
51055 |
M |
0 |
|
|
0 |
|
|
|
|
49095 |
30233 |
product |
51056 |
M |
0 |
|
|
0 |
|
|
|
|
49096 |
30232 |
product |
51057 |
M |
0 |
|
|
0 |
|
|
|
|
49097 |
30231 |
product |
51058 |
M |
0 |
|
|
0 |
|
|
|
|
49099 |
30230 |
product |
51060 |
M |
0 |
|
|
0 |
|
|
|
|
49101 |
30229 |
product |
51062 |
M |
0 |
|
|
0 |
|
|
|
|
49103 |
30228 |
product |
51064 |
M |
0 |
|
|
0 |
|
|
|
|
49104 |
30227 |
product |
51065 |
M |
0 |
|
|
0 |
|
|
|
|
49105 |
30226 |
product |
51066 |
M |
0 |
|
|
0 |
|
|
|
|
49107 |
30225 |
product |
51068 |
M |
0 |
|
|
0 |
|
|
|
|
49108 |
30224 |
product |
51069 |
M |
0 |
|
|
0 |
|
|
|
|
49109 |
30223 |
product |
51070 |
M |
0 |
|
|