[jira] [Updated] (PHOENIX-6792) FastDateFormat cannot parse greater than milisecond precision.

["Istvan Toth (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-6792?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Istvan Toth updated PHOENIX-6792:
---------------------------------
    Affects Version/s: 5.2.0

> FastDateFormat cannot parse greater than milisecond precision.
> --------------------------------------------------------------
>
>                 Key: PHOENIX-6792
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-6792
>             Project: Phoenix
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 5.2.0
>            Reporter: Istvan Toth
>            Priority: Major
>
> While working on PHOENIX-5066, I found that FastDateFormat is incapable of handling greater than milisecond precision.
> We're using the format string: "yyyy-MM-dd HH:mm:ss.SSS", but we want to parse nanosecond resolution timestamp strings like "2020-01-01 13:30:00.123456789"
> Strictly speaking FastDateFormat works as documented, as it interprets 123456789 as miliseconds, and sets miliseconds to "789", and adds "123456" seconds to the date.
> However, this is clearly not the intended behaviour.
> We either need to add some format-dependent heuristics, or drop FastDateFormat usage.



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