dhis2-devs team mailing list archive

[Jason Pickering <jason.p.pickering@xxxxxxxxx>]

Hi Lorill,

You can try and execute this script (at your own risk against a
non-production database)  and see if it solves the issues you are having.
As Morten points out, there is no guarantee it will work, since you have
been operating on a database without the constraints. But it may give you
an indication of where you have problems.

Regards,
Jason


On Thu, Jul 23, 2015 at 8:41 PM, Morten Olav Hansen <mortenoh@xxxxxxxxx>
wrote:

> No, hibernate can't make those can't of changes automatically, which is
> why Jason created a more manual SQL script for it, hibernate is good at
> adding columns etc, but can't change the constraints of an already existing
> column.
>
> I agree it should be added on the upgrade page, but its been there since
> 2.15 or 2.16.. so we would need to create several scripts (as the schema
> has changed from those early versions), I will leave that up to Lars, as he
> also have these scripts at hand.
>
> --
> Morten
>
> On Fri, Jul 24, 2015 at 1:36 AM, Lorill Crees <lcrees@xxxxxxxxxx> wrote:
>
>> Thanks Morten, looking forward to getting the script as that will save a
>> lot of manual effort.
>>
>> Perhaps the script could be included or referenced in the upgrade notes
>> here?
>>
>> https://github.com/dhis2/dhis2-utils/blob/master/resources/sql/upgrade-219.sql
>>
>> Also wondering - we're using the latest DHIS 2 (2.20) and hibernate
>> didn't automatically update the schema with these constraint changes. Is
>> this because there is still an issue with hibernate? Is this something we
>> will need to constantly look out for when upgrading versions?
>>
>> Thanks,
>>
>> Lorill
>>
>> On Thu, Jul 23, 2015 at 8:17 AM, Morten Olav Hansen <mortenoh@xxxxxxxxx>
>> wrote:
>>
>>> Hi Lorill
>>>
>>> This is known issue with older versions of DHIS 2 (it was a serious bug
>>> in hibernate, which we use as our ORM layer).
>>>
>>> Jason created a script that will add them back (but please know that
>>> there might be conflicts, as uniqueness constraints are added)
>>>
>>> I'm adding him in, as I don't have access to that script right now.. he
>>> can hopefully share it
>>>
>>> --
>>> Morten
>>>
>>> On Thu, Jul 23, 2015 at 4:22 AM, Lorill Crees <lcrees@xxxxxxxxxx> wrote:
>>>
>>>> Hi,
>>>>
>>>> We've noticed that many of our databases that have been upgraded from
>>>> 2.18 to 2.19 and then to 2.20 are missing many of the unique constraints
>>>> that are present when creating a 2.20 database from a new install. I
>>>> isolated this issue to our upgrades from 2.18 to 2.19.
>>>>
>>>> As a test I created 3 databases (Postgres 9.4.1, Tomcat 8.0.21, Java
>>>> 1.8.0_31):
>>>>
>>>>    1. I downloaded the 2.18 war, created database *dhis2_218, *then
>>>>    auto generated the schema by starting up the app
>>>>    2. I downloaded the 2.19 war, created database *dhis2_219, * then
>>>>    auto generated the schema by starting up the app
>>>>    3. I made a copy of dhis2_218 as *dhis2_219migrated*,  ran the
>>>>    upgrade script here:
>>>>    https://github.com/dhis2/dhis2-utils/blob/master/resources/sql/upgrade-219.sql,
>>>>    then ran the 2.19 war against it for it to be auto-updated
>>>>    (hibernate.hbm2ddl.auto = update).
>>>>
>>>> Note that I did not populate any of these instances with data in this
>>>> test. When doing a schema diff between dhis2_219 and dhis2_219migrated,
>>>> there are a large number of differences in unique constraints and fk
>>>> constraints (see attached screenshot for a few examples: dhis2_219 is on
>>>> the left and dhis2_219migrated is on the right).
>>>>
>>>> Is there a step in the migration I am missing here? We're trying to
>>>> figure out how to ensure our existing instances have the correct schema and
>>>> constraints for 2.20. We probably also have data clashes that won't conform
>>>> to the unique constraints that need to be added so need to deal with that
>>>> too.
>>>>
>>>> Thanks,
>>>>
>>>> Lorill
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>
>>
>


-- 
Jason P. Pickering
email: jason.p.pickering@xxxxxxxxx
tel:+46764147049

Attachment: constraints.sql
Description: application/sql