Query time 0.00144
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "3.15"
},
"ordering_operation": {
"using_filesort": true,
"nested_loop": [
{
"table": {
"table_name": "links",
"access_type": "ref",
"possible_keys": [
"object_id"
],
"key": "object_id",
"used_key_parts": [
"object_id",
"object_type",
"type"
],
"key_length": "81",
"ref": [
"const",
"const",
"const"
],
"rows_examined_per_scan": 3,
"rows_produced_per_join": 3,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.75",
"eval_cost": "0.30",
"prefix_cost": "1.05",
"data_read_per_join": "312"
},
"used_columns": [
"pair_id",
"object_id",
"object_type",
"image_id",
"detailed_id",
"type",
"position"
]
}
},
{
"table": {
"table_name": "images",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"image_id"
],
"key_length": "4",
"ref": [
"chocoramo.links.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 3,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.75",
"eval_cost": "0.30",
"prefix_cost": "2.10",
"data_read_per_join": "2K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y"
]
}
},
{
"table": {
"table_name": "descr",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"object_id",
"lang_code",
"object_holder"
],
"key_length": "108",
"ref": [
"chocoramo.images.image_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 3,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.75",
"eval_cost": "0.30",
"prefix_cost": "3.15",
"data_read_per_join": "1K"
},
"used_columns": [
"object_id",
"description",
"lang_code",
"object_holder"
]
}
}
]
}
}
}
Result
pair_id |
image_id |
detailed_id |
position |
object_id |
object_type |
detailed_image_x |
detailed_image_y |
detailed_image_path |
alt |
212829 |
0 |
137396 |
1 |
28141 |
product |
2000 |
2548 |
Nipple-Segment-5.jpg |
|