Query time 0.00100
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "203.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "39.00"
},
"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": 39,
"rows_produced_per_join": 39,
"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 ('37521','37522','37523','37524','37525','37526','37527','37528','37529','37530','37531','37532','37533','37534','37535','37536')))",
"cost_info": {
"read_cost": "62.81",
"eval_cost": "7.80",
"prefix_cost": "70.61",
"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": 39,
"filtered": "100.00",
"cost_info": {
"read_cost": "39.00",
"eval_cost": "7.80",
"prefix_cost": "117.41",
"data_read_per_join": "29K"
},
"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": 39,
"filtered": "100.00",
"cost_info": {
"read_cost": "39.00",
"eval_cost": "7.80",
"prefix_cost": "164.21",
"data_read_per_join": "23K"
},
"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 |
|
|
|
|
63005 |
37522 |
product |
64961 |
M |
0 |
|
|
0 |
|
|
|
|
63007 |
37524 |
product |
64963 |
M |
0 |
|
|
0 |
|
|
|
|
63016 |
37526 |
product |
64972 |
M |
0 |
|
|
0 |
|
|
|
|
63017 |
37527 |
product |
64973 |
M |
0 |
|
|
0 |
|
|
|
|
63018 |
37528 |
product |
64974 |
M |
0 |
|
|
0 |
|
|
|
|
63019 |
37529 |
product |
64975 |
M |
0 |
|
|
0 |
|
|
|
|
63021 |
37530 |
product |
64977 |
M |
0 |
|
|
0 |
|
|
|
|
63022 |
37525 |
product |
64978 |
M |
0 |
|
|
0 |
|
|
|
|
63027 |
37532 |
product |
64983 |
M |
0 |
|
|
0 |
|
|
|
|
63029 |
37533 |
product |
64985 |
M |
0 |
|
|
0 |
|
|
|
|
63032 |
37534 |
product |
64988 |
M |
0 |
|
|
0 |
|
|
|
|
63033 |
37535 |
product |
64989 |
M |
0 |
|
|
0 |
|
|
|
|
63035 |
37536 |
product |
64991 |
M |
0 |
|
|
0 |
|
|
|
|
82887 |
37521 |
product |
84830 |
M |
0 |
|
|
0 |
|
|
|
|
63006 |
37523 |
product |
64962 |
M |
1 |
|
|