Tianyi Wang has uploaded a new change for review.
http://gerrit.cloudera.org:8080/7530
Change subject: IMPALA-3894: Changed the behavior parsing 2-digit year values
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IMPALA-3894: Changed the behavior parsing 2-digit year values
This patch changed the behavor when running
unix_timestamp(string, string) function.
Before the change Impala directly adds 2000 to the year parsed.
Behavior after change is the same as Hive's,
shifting the parsed date into the interval
[current time - 80 years, current time + 20 years).
Given query
> select from_unixtime(unix_timestamp('31-AUG-94', 'dd-MMM-yy'),'yyyyMMdd');
Impala would output 20940831 before the change
and 19940831 with this patch applied.
unix_timestamp function with other forms of parameters is not affected.
Change-Id: I5da761255915dc741f1dcc488fd4ef6ecc385896
---
M be/src/exprs/timestamp-functions-ir.cc
M be/src/runtime/timestamp-parse-util.cc
M be/src/runtime/timestamp-parse-util.h
3 files changed, 27 insertions(+), 1 deletion(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/30/7530/4
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I5da761255915dc741f1dcc488fd4ef6ecc385896
Gerrit-PatchSet: 4
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Tianyi Wang <[email protected]>
