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Posted to dev@drill.apache.org by "Jacques Nadeau (JIRA)" <ji...@apache.org> on 2014/05/20 19:40:39 UTC
[jira] [Resolved] (DRILL-602) Query with join and group-by on join
column hangs
[ https://issues.apache.org/jira/browse/DRILL-602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jacques Nadeau resolved DRILL-602.
----------------------------------
Resolution: Fixed
> Query with join and group-by on join column hangs
> -------------------------------------------------
>
> Key: DRILL-602
> URL: https://issues.apache.org/jira/browse/DRILL-602
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Aman Sinha
>
> Following query hangs on latest master branch:
> select ps.ps_partkey, count(*) from cp.`tpch/lineitem.parquet` l, cp.`tpch/partsupp.parquet` ps where l.l_partkey = ps.ps_partkey and ps.ps_partkey = 30 group by ps.ps_partkey;
> Plan looks ok:
> ScreenPrel: rowcount = 22.5, cumulative cost = {1398.3592534906718 rows, 307.0 cpu, 0.0 io}, id = 400
> UnionExchangePrel: rowcount = 22.5, cumulative cost = {1396.1092534906718 rows, 304.75 cpu, 0.0 io}, id = 399
> StreamAggPrel(group=[{0}], EXPR$1=[COUNT()]): rowcount = 22.5, cumulative cost = {1393.8592534906718 rows, 302.5 cpu, 0.0 io}, id = 398
> SortPrel(sort0=[$0], dir0=[ASC]): rowcount = 225.0, cumulative cost = {1371.3592534906718 rows, 302.5 cpu, 0.0 io}, id = 397
> HashToRandomExchangePrel(dist0=[[$0]]): rowcount = 225.0, cumulative cost = {883.910217292274 rows, 280.0 cpu, 0.0 io}, id = 396
> ProjectPrel(ps_partkey=[$3]): rowcount = 225.0, cumulative cost = {861.410217292274 rows, 257.5 cpu, 0.0 io}, id = 395
> MergeJoinPrel(condition=[=($1, $3)], joinType=[inner]): rowcount = 225.0, cumulative cost = {838.910217292274 rows, 235.0 cpu, 0.0 io}, id = 394
> SortPrel(sort0=[$1], dir0=[ASC]): rowcount = 100.0, cumulative cost = {478.4136148790474 rows, 121.0 cpu, 0.0 io}, id = 390
> HashToRandomExchangePrel(dist0=[[$1]]): rowcount = 100.0, cumulative cost = {110.0 rows, 111.0 cpu, 0.0 io}, id = 389
> ScanPrel(table=[[cp, tpch/lineitem.parquet]]): rowcount = 100.0, cumulative cost = {100.0 rows, 101.0 cpu, 0.0 io}, id = 247
> SortPrel(sort0=[$1], dir0=[ASC]): rowcount = 15.0, cumulative cost = {135.49660241322653 rows, 114.0 cpu, 0.0 io}, id = 393
> HashToRandomExchangePrel(dist0=[[$1]]): rowcount = 15.0, cumulative cost = {103.0 rows, 112.5 cpu, 0.0 io}, id = 392
> FilterPrel(condition=[=(CAST($1):INTEGER NOT NULL, 30)]): rowcount = 15.0, cumulative cost = {101.5 rows, 111.0 cpu, 0.0 io}, id = 391
> ScanPrel(table=[[cp, tpch/partsupp.parquet]]): rowcount = 100.0, cumulative cost = {100.0 rows, 101.0 cpu, 0.0 io}, id = 191
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