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Date: Sat, 20 May 2017 01:41:50 +0000
From: "Taras Bobrovytsky (Code Review)" <gerrit@cloudera.org>
To: impala-cr@cloudera.com, reviews@impala.incubator.apache.org
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archived-at: Sat, 20 May 2017 01:41:56 -0000

Taras Bobrovytsky has uploaded a new patch set (#7).

Change subject: IMPALA-5259: Add REFRESH FUNCTIONS <db> statement
......................................................................

IMPALA-5259: Add REFRESH FUNCTIONS <db> statement

Before this patch, Impala relied on INVALIDATE METADATA to load
externally added UDFs from HMS. The problem with this approach is that
INVALIDATE METADATA affects all databases and tables in the entire
cluster.

In this patch, we add a REFRESH FUNCTIONS <db> statement that reloads
the functions of a database from HMS. We return a list of updated and
removed db functions to the issuing Impalad in order to update its
local catalog cache.

Testing:
- Ran a private build which passed.

Change-Id: I3625c88bb51cca833f3293c224d3f0feb00e6e0b
---
M common/thrift/CatalogService.thrift
M fe/src/main/cup/sql-parser.cup
M fe/src/main/java/org/apache/impala/analysis/ResetMetadataStmt.java
M fe/src/main/java/org/apache/impala/catalog/CatalogServiceCatalog.java
M fe/src/main/java/org/apache/impala/catalog/Db.java
M fe/src/main/java/org/apache/impala/catalog/Function.java
M fe/src/main/java/org/apache/impala/catalog/ImpaladCatalog.java
M fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
M fe/src/main/java/org/apache/impala/service/Frontend.java
M fe/src/test/java/org/apache/impala/analysis/ParserTest.java
M fe/src/test/java/org/apache/impala/analysis/ToSqlTest.java
M tests/custom_cluster/test_permanent_udfs.py
12 files changed, 326 insertions(+), 62 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/78/6878/7
-- 
To view, visit http://gerrit.cloudera.org:8080/6878
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I3625c88bb51cca833f3293c224d3f0feb00e6e0b
Gerrit-PatchSet: 7
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Taras Bobrovytsky <tbobrovytsky@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.behm@cloudera.com>
Gerrit-Reviewer: Bharath Vissapragada <bharathv@cloudera.com>
Gerrit-Reviewer: Dimitris Tsirogiannis <dtsirogiannis@cloudera.com>
Gerrit-Reviewer: Taras Bobrovytsky <tbobrovytsky@cloudera.com>