[
https://issues.apache.org/jira/browse/HIVE-17474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
liyunzhang_intel updated HIVE-17474:
------------------------------------
Description:
in
[DS/query70|https://github.com/kellyzly/hive-testbench/blob/hive14/sample-queries-tpcds/query70.sql].
The explain of hive on spark is
{code}
{code}
was:
in
[DS/query70|https://github.com/kellyzly/hive-testbench/blob/hive14/sample-queries-tpcds/query70.sql].
On hive version(d3b88f6), i found that the logical plan is different in
runtime with the same settings.
sometimes the logical plan
{code}
TS[0]-FIL[63]-SEL[2]-RS[43]-JOIN[45]-RS[46]-JOIN[48]-SEL[49]-GBY[50]-RS[51]-GBY[52]-SEL[53]-RS[54]-SEL[55]-PTF[56]-SEL[57]-RS[59]-SEL[60]-LIM[61]-FS[62]
TS[3]-FIL[64]-SEL[5]-RS[44]-JOIN[45]
TS[6]-FIL[65]-SEL[8]-RS[39]-JOIN[41]-RS[47]-JOIN[48]
TS[9]-FIL[67]-SEL[11]-RS[18]-JOIN[20]-RS[21]-JOIN[23]-SEL[24]-GBY[25]-RS[26]-GBY[27]-RS[29]-SEL[30]-PTF[31]-FIL[66]-SEL[32]-GBY[38]-RS[40]-JOIN[41]
TS[12]-FIL[68]-SEL[14]-RS[19]-JOIN[20]
TS[15]-FIL[69]-SEL[17]-RS[22]-JOIN[23]
{code}
TS\[6\] connects with TS\[9\] on JOIN\[41\] and connects with TS\[0\] on
JOIN\[48\].
sometimes
{code}
TS[0]-FIL[63]-RS[3]-JOIN[6]-RS[8]-JOIN[11]-RS[41]-JOIN[44]-SEL[46]-GBY[47]-RS[48]-GBY[49]-RS[50]-GBY[51]-RS[52]-SEL[53]-PTF[54]-SEL[55]-RS[57]-SEL[58]-LIM[59]-FS[60]
TS[1]-FIL[64]-RS[5]-JOIN[6]
TS[2]-FIL[65]-RS[10]-JOIN[11]
TS[12]-FIL[68]-RS[16]-JOIN[19]-RS[20]-JOIN[23]-FIL[67]-SEL[25]-GBY[26]-RS[27]-GBY[28]-RS[29]-GBY[30]-RS[31]-SEL[32]-PTF[33]-FIL[66]-SEL[34]-GBY[39]-RS[43]-JOIN[44]
TS[13]-FIL[69]-RS[18]-JOIN[19]
TS[14]-FIL[70]-RS[22]-JOIN[23]
{code}
TS\[2\] connects with TS\[0\] on JOIN\[11\]
Although TS\[2\] and TS\[6\] has different operator id, they are table store in
the query.
The difference causes different spark execution plan and different execution
time. I'm very confused why there are different logical plan with same
setting. Can anyone know where to investigate the root cause?
> Different logical plan of same query(TPC-DS/70) with same settings
> ------------------------------------------------------------------
>
> Key: HIVE-17474
> URL: https://issues.apache.org/jira/browse/HIVE-17474
> Project: Hive
> Issue Type: Bug
> Reporter: liyunzhang_intel
>
> in
> [DS/query70|https://github.com/kellyzly/hive-testbench/blob/hive14/sample-queries-tpcds/query70.sql].
> The explain of hive on spark is
> {code}
> {code}
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