[DRILL-589] order by desc fails on a aggregate query

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.4.0
• Assignee: Unassigned
• Reporter: Ramana Inukonda Nagaraj
• Created: 29/Apr/14 18:05
• Updated: 31/Jul/14 06:31
• Resolved: 09/Jun/14 06:49

Description

0: jdbc:drill:schema=dfs.drillTestDirP1> explain plan for select age,avg(gpa) from student group by age order by age desc;
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text

json

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ScreenPrel: rowcount = 10.0, cumulative cost = {518.8342956229998 rows, 144.0 cpu, 0.0 io} , id = 16464 SingleMergeExchangePrel(sort0=[0 DESC]): rowcount = 10.0, cumulative cost = {517.8342956229998 rows, 143.0 cpu, 0.0 io} , id = 16463 SortPrel(sort0=[$0], dir0

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1 row selected (0.088 seconds)
0: jdbc:drill:schema=dfs.drillTestDirP1> select age,avg(gpa) from student group by age order by age desc;
Query failed: org.apache.drill.exec.rpc.RpcException: Remote failure while running query.[error_id: "ce694964-2792-4e22-b253-75884b6ba57b"
endpoint {
address: "drillats3.qa.lab"
user_port: 31010
control_port: 31011
data_port: 31012
}
error_type: 0
message: "Failure while running fragment. < ClassCastException:[ org.apache.drill.exec.vector.IntVector cannot be cast to org.apache.drill.exec.vector.Float8Vector ]"
]
Error: exception while executing query (state=,code=0)

Default order by which is asc works.