Pavel Fedyakov created PIG-4244:
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Summary: Side effect of UnixToISO()
Key: PIG-4244
URL: https://issues.apache.org/jira/browse/PIG-4244
Project: Pig
Issue Type: Bug
Components: piggybank
Affects Versions: 0.11
Reporter: Pavel Fedyakov
To reproduce the bug, local timezone should *not* be set to UTC.
Script below produces datetime strings and hour numbers in local timezone:
{code}
in = load 'in' as (ts: long);
out = foreach in generate ToDate(ts), GetHour(ToDate(ts));
dump out;
{code}
(For input 0 result is (1970-01-01T03:00:00.000+03:00,3) on my machine.)
If UnixToISO() is called nearby, builtin ToDate() changes output, producing
result in UTC timezone:
{code}
register piggybank.jar;
DEFINE UnixToISO
org.apache.pig.piggybank.evaluation.datetime.convert.UnixToISO();
in = load 'in' as (ts: long);
out = foreach in generate UnixToISO(ts), ToDate(ts), GetHour(ToDate(ts));
dump out;
{code}
(For input 0 result is (1970-01-01T00:00:00.000Z,1970-01-01T00:00:00.000Z,0) on
my machine.)
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