Youwei Wang has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/4490

Change subject: IMPALA-3504: function for current timestamp in UTC, i.e. 
utc_timestamp()
......................................................................

IMPALA-3504: function for current timestamp in UTC, i.e. utc_timestamp()

Implement a UDF to generate current UTC timestamp.
Generated timestamp has been verified using online UTC service
in term of both epoch value and human-readable time.
Usage: select utc_timestamp();
Example result: 2016-09-21 02:14:37;

Change-Id: I5ee6ee192aa469f77c711f27ad324696a42004d1
---
M be/src/exprs/timestamp-functions-ir.cc
M be/src/exprs/timestamp-functions.h
M common/function-registry/impala_functions.py
3 files changed, 10 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/90/4490/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I5ee6ee192aa469f77c711f27ad324696a42004d1
Gerrit-PatchSet: 1
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Youwei Wang <youwei.a.w...@intel.com>

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