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From "Thomas Tauber-Marshall (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-4731/IMPALA-397/IMPALA-4728: Materialize sort exprs
Date Fri, 03 Mar 2017 20:34:31 GMT
Thomas Tauber-Marshall has uploaded a new patch set (#3).

Change subject: IMPALA-4731/IMPALA-397/IMPALA-4728: Materialize sort exprs
......................................................................

IMPALA-4731/IMPALA-397/IMPALA-4728: Materialize sort exprs

Previously, exprs used in sorts were evaluated lazily. This can
potentially be bad for performance if the exprs are expensive to
evaluate, and it can lead to crashes if the exprs are
non-deterministic, as this violates assumptions of our sorting
algorithm.

This patch addresses these issues by materializing ordering exprs.
It does so when the expr is non-deterministic (including when it
contains a UDF, which we cannot currently know if they are
non-deterministic), or when its cost exceeds a threshold (or the
cost is unknown).

It also introduces the query option 'materialize_sort' which
overrides the above decision and forces materialization (or
non-materialization).

Testing:
- Added e2e tests in test_sort.py and test_queries.py.

Change-Id: I5dcda32fc7770d42fc500ce87fc54d58e5b5dc00
---
M be/src/service/query-options.cc
M be/src/service/query-options.h
M common/thrift/ImpalaInternalService.thrift
M common/thrift/ImpalaService.thrift
M fe/src/main/java/org/apache/impala/analysis/Expr.java
M fe/src/main/java/org/apache/impala/analysis/FunctionCallExpr.java
M fe/src/main/java/org/apache/impala/analysis/FunctionName.java
M fe/src/main/java/org/apache/impala/analysis/QueryStmt.java
M fe/src/main/java/org/apache/impala/analysis/SortInfo.java
M fe/src/main/java/org/apache/impala/planner/AnalyticPlanner.java
M fe/src/main/java/org/apache/impala/planner/ExchangeNode.java
M fe/src/main/java/org/apache/impala/planner/SortNode.java
M testdata/workloads/functional-planner/queries/PlannerTest/aggregation.test
M testdata/workloads/functional-planner/queries/PlannerTest/analytic-fns.test
M testdata/workloads/functional-planner/queries/PlannerTest/constant-folding.test
M testdata/workloads/functional-planner/queries/PlannerTest/ddl.test
M testdata/workloads/functional-planner/queries/PlannerTest/inline-view-limit.test
M testdata/workloads/functional-planner/queries/PlannerTest/inline-view.test
M testdata/workloads/functional-planner/queries/PlannerTest/insert.test
M testdata/workloads/functional-planner/queries/PlannerTest/join-order.test
M testdata/workloads/functional-planner/queries/PlannerTest/joins.test
M testdata/workloads/functional-planner/queries/PlannerTest/kudu-upsert.test
M testdata/workloads/functional-planner/queries/PlannerTest/kudu.test
M testdata/workloads/functional-planner/queries/PlannerTest/mt-dop-validation.test
M testdata/workloads/functional-planner/queries/PlannerTest/nested-collections.test
M testdata/workloads/functional-planner/queries/PlannerTest/order.test
M testdata/workloads/functional-planner/queries/PlannerTest/partition-key-scans.test
M testdata/workloads/functional-planner/queries/PlannerTest/predicate-propagation.test
M testdata/workloads/functional-planner/queries/PlannerTest/runtime-filter-propagation.test
M testdata/workloads/functional-planner/queries/PlannerTest/topn.test
M testdata/workloads/functional-planner/queries/PlannerTest/tpcds-all.test
M testdata/workloads/functional-planner/queries/PlannerTest/tpch-all.test
M testdata/workloads/functional-planner/queries/PlannerTest/tpch-kudu.test
M testdata/workloads/functional-planner/queries/PlannerTest/tpch-nested.test
M testdata/workloads/functional-planner/queries/PlannerTest/tpch-views.test
M testdata/workloads/functional-planner/queries/PlannerTest/union.test
M testdata/workloads/functional-planner/queries/PlannerTest/values.test
M testdata/workloads/functional-planner/queries/PlannerTest/views.test
M testdata/workloads/functional-planner/queries/PlannerTest/with-clause.test
M testdata/workloads/functional-query/queries/QueryTest/analytic-fns.test
M testdata/workloads/functional-query/queries/QueryTest/sort.test
M tests/query_test/test_sort.py
42 files changed, 926 insertions(+), 702 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/14/5914/3
-- 
To view, visit http://gerrit.cloudera.org:8080/5914
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I5dcda32fc7770d42fc500ce87fc54d58e5b5dc00
Gerrit-PatchSet: 3
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Thomas Tauber-Marshall <tmarshall@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.behm@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Thomas Tauber-Marshall <tmarshall@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstrong@cloudera.com>

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