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From "Zach Amsden (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-5180: Don't use non-deterministic exprs in partition pruning
Date Fri, 28 Apr 2017 17:25:32 GMT
Zach Amsden has uploaded a new patch set (#7).

Change subject: IMPALA-5180: Don't use non-deterministic exprs in partition pruning
......................................................................

IMPALA-5180: Don't use non-deterministic exprs in partition pruning

Non-deterministic exprs which evaluate as constant should not be
used during HDFS partition pruning.  We consider Exprs which have no
SlotRefs as bound by default, and thus we end up trying to apply
them indisrciminately.  Constant propagation makes this situation
easier to run into and the behavior is rather unexpected.

The fix for now is to explicitly disallow non-deterministic Exprs
in partition pruning.

Change-Id: I91054c6bf017401242259a1eff5e859085285546
---
M fe/src/main/java/org/apache/impala/analysis/PartitionSet.java
M fe/src/main/java/org/apache/impala/planner/HdfsPartitionPruner.java
M fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java
M testdata/workloads/functional-planner/queries/PlannerTest/hdfs.test
4 files changed, 36 insertions(+), 9 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/75/6575/7
-- 
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I91054c6bf017401242259a1eff5e859085285546
Gerrit-PatchSet: 7
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Zach Amsden <zamsden@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.behm@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dhecht@cloudera.com>
Gerrit-Reviewer: Zach Amsden <zamsden@cloudera.com>

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