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From anil gupta <anilgupt...@gmail.com>
Subject Re: Date DataType broken when Migrating from Phoenix2.0.2 to Phoenix3.0.0
Date Thu, 01 May 2014 23:06:16 GMT
Thanks for your help, James. Everything is looking good till now.


On Wed, Apr 23, 2014 at 12:02 AM, James Taylor <jamestaylor@apache.org>wrote:

> The definitive guide is the upgrade code
> in
> org.apache.phoenix.query.ConnectionQueryServicesImpl.upgradeMetaDataTo3_0().
> You're somewhat in uncharted territory if you bypass the standard,
> documented means of upgrading. Are you upgrading by re-running your DDL?
>
> Other than the date/time change I mentioned already (not sure if you're
> using other date/time types other than DATE, as they'd need to be changed
> as well), the default column family name changed. So if you have column
> families that are implicitly named, you'll need to specify a property value
> of DEFAULT_COLUMN_FAMILY='_0' at DDL time to maintain the prior default.
> Also, if you have secondary indexes, these would need to be added again
> (and would be rebuilt from scratch).
>
> The upgrade process outlined here takes care of all the conversion
> automatically (without requiring your secondary indexes to be rebuilt):
> http://phoenix.incubator.apache.org/upgrade_from_2_2.html
>
> Thanks,
> James
>
>
> On Tue, Apr 22, 2014 at 8:05 PM, anil gupta <anilgupta84@gmail.com> wrote:
>
> > Now the dates are looking fine after following your suggestion.
> >
> > I made 2 code changes in my Java code:
> > 1. Changed the package from com.salesforce to org.apache.
> > 2. Changed all references to PDataType.DATE to PDataType.UNSIGNED_DATE
> >
> > I deleted system.catalog table and Phoenix created
> >
> > Things are looking good for now. Please let me know if i miss anything
> > other data type that i need to take care of.
> >
> > Thanks for your help!
> > Anil
> >
> >
> >
> >
> > On Tue, Apr 22, 2014 at 5:25 PM, anil gupta <anilgupta84@gmail.com>
> wrote:
> >
> > > Hi James,
> > >
> > > Thanks for the quick response. I will test my stuff with changes that
> you
> > > suggested. I was just worried about rewriting Date Columns. This seems
> to
> > > be an easier fix. :)
> > >
> > > Thanks,
> > > Anil Gupta
> > >
> > >
> > > On Tue, Apr 22, 2014 at 5:20 PM, James Taylor <jamestaylor@apache.org
> > >wrote:
> > >
> > >> Hi Anil,
> > >> Please see
> http://phoenix.incubator.apache.org/upgrade_from_2_2.htmlfor
> > >> how to upgrade from Phoenix 2.2.x to Apache Phoenix 3.0/4.0. Part of
> > what
> > >> this will do is modify your table metadata to use the UNSIGNED_DATE,
> > >> UNSIGNED_TIME, and UNSIGNED_TIMESTAMP types instead of the now signed
> > >> ones.
> > >> The reason this change was made is so that we can support negative
> time
> > >> values to increase the range of dates we can represent (PHOENIX-618).
> If
> > >> you have any explicit code references to the internal PDataType enum
> for
> > >> PDataType.DATE, PDataType.TIME, or PDataType.TIMESTAMP, these should
> be
> > >> updated as well to their UNSIGNED equivalent.
> > >> Thanks,
> > >> James
> > >>
> > >>
> > >> On Tue, Apr 22, 2014 at 5:12 PM, anil gupta <anilgupta84@gmail.com>
> > >> wrote:
> > >>
> > >> > Hi All,
> > >> >
> > >> > We have written data into our HBase tables using PDataType of
> > >> Phoenix2.0.2.
> > >> > We have custom MR loaders that use PDataType so that we can use
> > Phoenix
> > >> for
> > >> > adhoc querying
> > >> > I am trying to migrate to Phoenix3.0.0, but all the Date type
> columns
> > >> > values are not coming out correctly. These are big tables(TB's of
> > data)
> > >> and
> > >> > i would like to avoid making changes in my tables due to Phoenix
> > >> upgrade to
> > >> > 3.0.0.
> > >> > Is Phoenix3.0.0 not backward compatible with Phoenix2.0.2? Is there
> > any
> > >> > easy fix for this(without rewriting Date Columns)? Also, i am
> curious
> > to
> > >> > know what was broken in Date DataType in Phoenix2.0.2?
> > >> >
> > >> > --
> > >> > Thanks & Regards,
> > >> > Anil Gupta
> > >> >
> > >>
> > >
> > >
> > >
> > > --
> > > Thanks & Regards,
> > > Anil Gupta
> > >
> >
> >
> >
> > --
> > Thanks & Regards,
> > Anil Gupta
> >
>



-- 
Thanks & Regards,
Anil Gupta

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