kgyrtkirk commented on issue #16728:
URL: https://github.com/apache/druid/issues/16728#issuecomment-2228976930
interesting; for me even a similar query to yours is planned as a topn
```sql
SELECT "page",
sum(added) filter (where "__time" >= '2015-09-12T00:00:00.000Z' AND
"__time" < '2015-09-12T01:00:00.000Z') as base_added,
sum(added) filter (where "__time" >= '2015-09-12T01:00:00.000Z' AND
"__time" < '2015-09-12T20:00:00.000Z') AS comparison_added,
sum(added) filter (where "__time" >= '2015-09-12T00:00:00.000Z' AND
"__time" < '2015-09-12T01:00:00.000Z') -
sum(added) filter (where "__time" >= '2015-09-12T01:00:00.000Z' AND
"__time" < '2015-09-12T20:00:00.000Z') AS gx
FROM "wikipedia" WHERE "__time" >= '2015-09-12T00:00:00.000Z' AND
"__time" < '2015-09-12T20:00:00.000Z' GROUP BY 1 ORDER BY "gx" DESC LIMIT 33
```
<details>
<summary>plan</summary>
```json
[
{
"query": {
"queryType": "topN",
"dataSource": {
"type": "table",
"name": "wikipedia"
},
"dimension": {
"type": "default",
"dimension": "page",
"outputName": "d0",
"outputType": "STRING"
},
"metric": {
"type": "numeric",
"metric": "p0"
},
"threshold": 33,
"intervals": {
"type": "intervals",
"intervals": [
"2015-09-12T00:00:00.000Z/2015-09-12T20:00:00.000Z"
]
},
"granularity": {
"type": "all"
},
"aggregations": [
{
"type": "filtered",
"aggregator": {
"type": "longSum",
"name": "a0",
"fieldName": "added"
},
"filter": {
"type": "range",
"column": "__time",
"matchValueType": "LONG",
"lower": 1442016000000,
"upper": 1442019600000,
"upperOpen": true
},
"name": "a0"
},
{
"type": "filtered",
"aggregator": {
"type": "longSum",
"name": "a1",
"fieldName": "added"
},
"filter": {
"type": "range",
"column": "__time",
"matchValueType": "LONG",
"lower": 1442019600000,
"upper": 1442088000000,
"upperOpen": true
},
"name": "a1"
}
],
"postAggregations": [
{
"type": "expression",
"name": "p0",
"expression": "(\"a0\" - \"a1\")",
"outputType": "LONG"
}
],
"context": {
"enableUnnest": true,
"implyFeature": "explain",
"implyUser": "asd",
"implyView": "sql",
"queryId": "PIVOT-f3daed67-f916-4027-a002-e0bff6572ea8-1",
"sqlOuterLimit": 5000,
"sqlQueryId": "c15c8d19-095c-40dd-aef5-92f30240b634",
"timeout": 300000
}
},
"signature": [
{
"name": "d0",
"type": "STRING"
},
{
"name": "a0",
"type": "LONG"
},
{
"name": "a1",
"type": "LONG"
},
{
"name": "p0",
"type": "LONG"
}
],
"columnMappings": [
{
"queryColumn": "d0",
"outputColumn": "page"
},
{
"queryColumn": "a0",
"outputColumn": "base_added"
},
{
"queryColumn": "a1",
"outputColumn": "comparison_added"
},
{
"queryColumn": "p0",
"outputColumn": "gx"
}
]
}
]
```
</details>
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