[
https://issues.apache.org/jira/browse/CALCITE-2222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16417764#comment-16417764
]
slim bouguerra commented on CALCITE-2222:
-----------------------------------------
PR sent https://github.com/apache/calcite/pull/652
> Add Quarter as part of valid floor units to push down to Druid.
> ----------------------------------------------------------------
>
> Key: CALCITE-2222
> URL: https://issues.apache.org/jira/browse/CALCITE-2222
> Project: Calcite
> Issue Type: Bug
> Components: druid
> Affects Versions: 1.16.0
> Reporter: slim bouguerra
> Assignee: slim bouguerra
> Priority: Major
> Fix For: 1.17.0
>
>
> Current list of valid floor units that can be pushed as valid floor unit is
> missing Quarters, something that Druid can actually do.
> This is a performance bug.
> For instance query
> {code}
> SELECT floor_year(`__time`), max(added), sum(variation)
> FROM druid_table_1
> {code}
> Is currently planned as
> {code}
> {"queryType":"scan","dataSource":"wikipedia","intervals":["1900-01-01T00:00:00.000Z/3000-01-01T00:00:00.000Z"],"virtualColumns":[{"type":"expression","name":"vc","expression":"\"__time\"","outputType":"LONG"}],"columns":["vc","added","variation"],"resultFormat":"compactedList"}
> {code}
> And it can be optimized to
> {code}
> {"queryType":"timeseries","dataSource":"wikipedia","descending":false,"granularity":"quarter","aggregations":[{"type":"doubleMax","name":"$f1","fieldName":"added"},{"type":"doubleSum","name":"$f2","fieldName":"variation"}],"intervals":["1900-01-01T00:00:00.000Z/3000-01-01T00:00:00.000Z"],"context":{"skipEmptyBuckets":true}}
> {code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
