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https://issues.apache.org/jira/browse/HIVE-15639?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez updated HIVE-15639:
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Summary: Hive/Druid integration: wrong semantics for ordering within
groupBy queries (was: HI)
> Hive/Druid integration: wrong semantics for ordering within groupBy queries
> ---------------------------------------------------------------------------
>
> Key: HIVE-15639
> URL: https://issues.apache.org/jira/browse/HIVE-15639
> Project: Hive
> Issue Type: Bug
> Components: Druid integration
> Affects Versions: 2.2.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Critical
>
> The scope of the ordering seems to be for each different granularity value
> instead of globally.
> {code:sql}
> EXPLAIN
> SELECT i_brand_id, floor_day(`__time`), max(ss_quantity),
> sum(ss_wholesale_cost) as s
> FROM store_sales_sold_time_subset
> GROUP BY i_brand_id, floor_day(`__time`)
> ORDER BY i_brand_id
> LIMIT 10;
> OK
> Plan optimized by CBO.
> Stage-0
> Fetch Operator
> limit:-1
> Select Operator [SEL_1]
> Output:["_col0","_col1","_col2","_col3"]
> TableScan [TS_0]
>
> Output:["i_brand_id","__time","$f2","$f3"],properties:{"druid.query.json":"{\"queryType\":\"groupBy\",\"dataSource\":\"druid_tpcds_ss_sold_time_subset\",\"granularity\":\"DAY\",\"dimensions\":[\"i_brand_id\"],\"limitSpec\":{\"type\":\"default\",\"limit\":10,\"columns\":[{\"dimension\":\"i_brand_id\",\"direction\":\"ascending\"}]},\"aggregations\":[{\"type\":\"longMax\",\"name\":\"$f2\",\"fieldName\":\"ss_quantity\"},{\"type\":\"doubleSum\",\"name\":\"$f3\",\"fieldName\":\"ss_wholesale_cost\"}],\"intervals\":[\"1900-01-01T00:00:00.000Z/3000-01-01T00:00:00.000Z\"]}","druid.query.type":"groupBy"}
> {code}
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