Query time 0.00150
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "92.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "16.00"
},
"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": 16,
"rows_produced_per_join": 16,
"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 ('13177','13178','13179','13180','13181','13182','13183','13184','13185','13186','13187','13188','13189','13190','13191','13192')))",
"cost_info": {
"read_cost": "35.21",
"eval_cost": "3.20",
"prefix_cost": "38.41",
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "57.61",
"data_read_per_join": "12K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "76.81",
"data_read_per_join": "9K"
},
"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 |
|
|
|
|
26978 |
13177 |
product |
28940 |
M |
0 |
|
|
0 |
|
|
|
|
26979 |
13178 |
product |
28941 |
M |
0 |
|
|
0 |
|
|
|
|
26980 |
13179 |
product |
28942 |
M |
0 |
|
|
0 |
|
|
|
|
26982 |
13181 |
product |
28944 |
M |
0 |
|
|
0 |
|
|
|
|
26985 |
13184 |
product |
28947 |
M |
0 |
|
|
0 |
|
|
|
|
26987 |
13186 |
product |
28949 |
M |
0 |
|
|
0 |
|
|
|
|
26988 |
13187 |
product |
28950 |
M |
0 |
|
|
0 |
|
|
|
|
26989 |
13188 |
product |
28951 |
M |
0 |
|
|
0 |
|
|
|
|
27358 |
13190 |
product |
29320 |
M |
0 |
|
|
0 |
|
|
|
|
27362 |
13185 |
product |
29324 |
M |
0 |
|
|
0 |
|
|
|
|
27363 |
13183 |
product |
29325 |
M |
0 |
|
|
0 |
|
|
|
|
27364 |
13182 |
product |
29326 |
M |
0 |
|
|
0 |
|
|
|
|
27368 |
13180 |
product |
29330 |
M |
0 |
|
|
0 |
|
|
|
|
27370 |
13192 |
product |
29332 |
M |
0 |
|
|
0 |
|
|
|
|
27371 |
13191 |
product |
29333 |
M |
0 |
|
|
0 |
|
|
|
|
82839 |
13189 |
product |
84782 |
M |
0 |
|
|