Query time 0.00098
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "193.61"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "37.00"
},
"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": 37,
"rows_produced_per_join": 37,
"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 ('30239','30240','30241','30242','30243','30244','30245','30246','30247','30248','30249','30250','30251','30252','30253','30254')))",
"cost_info": {
"read_cost": "60.41",
"eval_cost": "7.40",
"prefix_cost": "67.81",
"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": 37,
"filtered": "100.00",
"cost_info": {
"read_cost": "37.00",
"eval_cost": "7.40",
"prefix_cost": "112.21",
"data_read_per_join": "28K"
},
"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": 37,
"filtered": "100.00",
"cost_info": {
"read_cost": "37.00",
"eval_cost": "7.40",
"prefix_cost": "156.61",
"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 |
|
|
|
|
49066 |
30254 |
product |
51027 |
M |
0 |
|
|
0 |
|
|
|
|
49068 |
30253 |
product |
51029 |
M |
0 |
|
|
0 |
|
|
|
|
49070 |
30252 |
product |
51031 |
M |
0 |
|
|
0 |
|
|
|
|
49071 |
30251 |
product |
51032 |
M |
0 |
|
|
0 |
|
|
|
|
49072 |
30250 |
product |
51033 |
M |
0 |
|
|
0 |
|
|
|
|
49075 |
30249 |
product |
51036 |
M |
0 |
|
|
0 |
|
|
|
|
49077 |
30248 |
product |
51038 |
M |
0 |
|
|
0 |
|
|
|
|
49078 |
30247 |
product |
51039 |
M |
0 |
|
|
0 |
|
|
|
|
49079 |
30246 |
product |
51040 |
M |
0 |
|
|
0 |
|
|
|
|
49081 |
30245 |
product |
51042 |
M |
0 |
|
|
0 |
|
|
|
|
49082 |
30244 |
product |
51043 |
M |
0 |
|
|
0 |
|
|
|
|
49083 |
30243 |
product |
51044 |
M |
0 |
|
|
0 |
|
|
|
|
49084 |
30242 |
product |
51045 |
M |
0 |
|
|
0 |
|
|
|
|
49085 |
30241 |
product |
51046 |
M |
0 |
|
|
0 |
|
|
|
|
49086 |
30240 |
product |
51047 |
M |
0 |
|
|
0 |
|
|
|
|
49087 |
30239 |
product |
51048 |
M |
0 |
|
|