Query time 0.00122
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "264.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "49.00"
},
"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": 49,
"rows_produced_per_join": 49,
"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 ('44','45','46','47','48','49','50','51','52','53','54','55','56','57','58','59','60','61','2','3','4','5','6','7','8','9','11','12','13')))",
"cost_info": {
"read_cost": "87.81",
"eval_cost": "9.80",
"prefix_cost": "97.61",
"data_read_per_join": "4K"
},
"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": 49,
"filtered": "100.00",
"cost_info": {
"read_cost": "49.00",
"eval_cost": "9.80",
"prefix_cost": "156.41",
"data_read_per_join": "37K"
},
"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": 49,
"filtered": "100.00",
"cost_info": {
"read_cost": "49.00",
"eval_cost": "9.80",
"prefix_cost": "215.21",
"data_read_per_join": "29K"
},
"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 |
|
|
|
|
36 |
2 |
product |
2013 |
M |
0 |
|
|
0 |
|
|
|
|
41 |
4 |
product |
2018 |
M |
0 |
|
|
0 |
|
|
|
|
44 |
5 |
product |
2021 |
M |
0 |
|
|
0 |
|
|
|
|
47 |
6 |
product |
2024 |
M |
0 |
|
|
0 |
|
|
|
|
49 |
7 |
product |
2026 |
M |
0 |
|
|
0 |
|
|
|
|
54 |
9 |
product |
2031 |
M |
0 |
|
|
0 |
|
|
|
|
58 |
11 |
product |
2035 |
M |
0 |
|
|
0 |
|
|
|
|
60 |
12 |
product |
2037 |
M |
0 |
|
|
0 |
|
|
|
|
62 |
13 |
product |
2039 |
M |
0 |
|
|
0 |
|
|
|
|
122 |
44 |
product |
2099 |
M |
0 |
|
|
0 |
|
|
|
|
124 |
45 |
product |
2101 |
M |
0 |
|
|
0 |
|
|
|
|
126 |
46 |
product |
2103 |
M |
0 |
|
|
0 |
|
|
|
|
128 |
47 |
product |
2105 |
M |
0 |
|
|
0 |
|
|
|
|
130 |
48 |
product |
2107 |
M |
0 |
|
|
0 |
|
|
|
|
132 |
49 |
product |
2109 |
M |
0 |
|
|
0 |
|
|
|
|
134 |
50 |
product |
2111 |
M |
0 |
|
|
0 |
|
|
|
|
136 |
51 |
product |
2113 |
M |
0 |
|
|
0 |
|
|
|
|
138 |
52 |
product |
2115 |
M |
0 |
|
|
0 |
|
|
|
|
140 |
53 |
product |
2117 |
M |
0 |
|
|
0 |
|
|
|
|
142 |
54 |
product |
2119 |
M |
0 |
|
|
0 |
|
|
|
|
144 |
55 |
product |
2121 |
M |
0 |
|
|
0 |
|
|
|
|
146 |
56 |
product |
2123 |
M |
0 |
|
|
0 |
|
|
|
|
148 |
57 |
product |
2125 |
M |
0 |
|
|
0 |
|
|
|
|
150 |
58 |
product |
2127 |
M |
0 |
|
|
0 |
|
|
|
|
151 |
59 |
product |
2128 |
M |
0 |
|
|
0 |
|
|
|
|
152 |
61 |
product |
2129 |
M |
0 |
|
|
0 |
|
|
|
|
18717 |
60 |
product |
20679 |
M |
0 |
|
|
0 |
|
|
|
|
81734 |
8 |
product |
83677 |
M |
0 |
|
|
0 |
|
|
|
|
81977 |
3 |
product |
83920 |
M |
0 |
|
|