Tim Armstrong has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/12814 )

Change subject: IMPALA-4865: Reject Expr Rewrite When Appropriate
......................................................................

IMPALA-4865: Reject Expr Rewrite When Appropriate

Avoided rewrite if the resulting string literal exceeds a defined limit.

Testing:
Added three statements in testFoldConstantsRule() to verify that the
expression rewrite is accepted only when the size of the rewritten
expression is below a specified threshold.

Change-Id: I8b078113ccc1aa49b0cea0c86dff2e02e1dd0e23
Reviewed-on: http://gerrit.cloudera.org:8080/12814
Reviewed-by: Tim Armstrong <tarmstr...@cloudera.com>
Tested-by: Tim Armstrong <tarmstr...@cloudera.com>
---
M .gitignore
M be/src/service/fe-support.cc
M common/thrift/generate_error_codes.py
M fe/src/main/java/org/apache/impala/analysis/ColumnDef.java
M fe/src/main/java/org/apache/impala/analysis/LiteralExpr.java
M fe/src/main/java/org/apache/impala/analysis/PartitionKeyValue.java
M fe/src/main/java/org/apache/impala/analysis/RangePartition.java
M fe/src/main/java/org/apache/impala/analysis/StringLiteral.java
M fe/src/main/java/org/apache/impala/planner/HBaseScanNode.java
M fe/src/main/java/org/apache/impala/rewrite/FoldConstantsRule.java
M fe/src/main/java/org/apache/impala/rewrite/RemoveRedundantStringCast.java
M fe/src/main/java/org/apache/impala/service/FeSupport.java
M fe/src/main/java/org/apache/impala/util/KuduUtil.java
M fe/src/test/java/org/apache/impala/analysis/ExprRewriteRulesTest.java
14 files changed, 117 insertions(+), 32 deletions(-)

Approvals:
  Tim Armstrong: Looks good to me, approved; Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I8b078113ccc1aa49b0cea0c86dff2e02e1dd0e23
Gerrit-Change-Number: 12814
Gerrit-PatchSet: 18
Gerrit-Owner: Fang-Yu Rao <fangyu....@cloudera.com>
Gerrit-Reviewer: Fang-Yu Rao <fangyu....@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Paul Rogers <prog...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>

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