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https://issues.apache.org/jira/browse/HIVE-3454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13686330#comment-13686330
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Arijit Banerjee commented on HIVE-3454:
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I think a good approach would be to fix it in a way that it can work with both
double and long values. This is what I did and works for me. Let me know what
you think.
In org.apache.hadoop.hive.serde2.objectinspector.primitive
PrimitiveObjectInspectorUtils.java edit getTimestamp method and convert the
long object to double.
getTimestamp(Object o, PrimitiveObjectInspector oi)
case LONG:
//Timestamp conversion from LONG is messy. Converting to double.
long tsLongPrimitive=((LongObjectInspector) oi).get(o);
result =TimestampWritable.doubleToTimestamp(tsLongPrimitive*1.0);
break;
> Problem with CAST(BIGINT as TIMESTAMP)
> --------------------------------------
>
> Key: HIVE-3454
> URL: https://issues.apache.org/jira/browse/HIVE-3454
> Project: Hive
> Issue Type: Bug
> Components: Types, UDF
> Affects Versions: 0.8.0, 0.8.1, 0.9.0
> Reporter: Ryan Harris
> Labels: newbie, newdev, patch
> Attachments: HIVE-3454.1.patch.txt
>
>
> Ran into an issue while working with timestamp conversion.
> CAST(unix_timestamp() as TIMESTAMP) should create a timestamp for the current
> time from the BIGINT returned by unix_timestamp()
> Instead, however, a 1970-01-16 timestamp is returned.
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