Taras Bobrovytsky has uploaded a new patch set (#4). ( 
http://gerrit.cloudera.org:8080/8398 )

Change subject: IMPALA-3436: Return a decimal when rounding a double
......................................................................

IMPALA-3436: Return a decimal when rounding a double

Before this patch, the function round(double, int) returned a double,
which is inconsistent with other round() functions.

In this patch, we change the return type of round(double, int) to be
decimal only if decimal_v2 is enabled. If decimal_v2 is not enabled,
the function returns a double, as before.

This is implemented by introducing a translateion where we make the
parser aware of query options and rename the function to round_v1()
during parsing if decimal_v2 is not enabled. To make this translation
invisible, we also rename it back to round() in toSql().

This translation should be removed when we remove decimal v1.

Testing:
- Added EE tests.

Change-Id: I240ec70da7996bbfefcf6438eba4dff8d33d7bd6
---
M be/src/exprs/decimal-functions-ir.cc
M be/src/exprs/decimal-functions.h
M be/src/exprs/decimal-operators.h
M common/function-registry/impala_functions.py
M fe/src/main/cup/sql-parser.cup
M fe/src/main/java/org/apache/impala/analysis/AnalysisContext.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/test/java/org/apache/impala/analysis/AnalyzeExprsTest.java
M testdata/workloads/functional-query/queries/QueryTest/decimal-exprs.test
10 files changed, 268 insertions(+), 18 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/98/8398/4
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I240ec70da7996bbfefcf6438eba4dff8d33d7bd6
Gerrit-Change-Number: 8398
Gerrit-PatchSet: 4
Gerrit-Owner: Taras Bobrovytsky <tbobrovyt...@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com>
Gerrit-Reviewer: Taras Bobrovytsky <tbobrovyt...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>

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