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help / color / mirror / Atom feedFrom: Ashesh Vashi <[email protected]>
To: Harshal Dhumal <[email protected]>
Cc: pgadmin-hackers <[email protected]>
Cc: Akshay Joshi <[email protected]>
Cc: Dave Page <[email protected]>
Cc: Robert Eckhardt <[email protected]>
Cc: Shirley Wang <[email protected]>
Subject: Re: [pgadmin-hackers] Declarative partitioning in pgAdmin4
Date: Fri, 30 Jun 2017 12:46:19 +0530
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On Thu, Jun 29, 2017 at 5:02 PM, Ashesh Vashi <[email protected]
> wrote:
> Hi Harshal,
>
> These are initial review comments.
> 1.
> Please share a separate patch for generic code changes from this patch for
> the following files:
> - web/pgadmin/tools/user_management/templates/user_management/
> js/user_management.js
> - web/pgadmin/static/js/backform.pgadmin.js
> - web/pgadmin/static/js/backgrid.pgadmin.js
>
> This should be committed as separate functionality, and should not be part
> of this commit.
>
> 2.
> Please put a space after a colon (:) in javascript object definition.
> i.e.
> {cell: Backgrid.Extension.StringDepCell, cellHeaderClasses:
> 'width_percent_30'}
>
> 3.
> Conversion of ptid (partition table OID) to tid (table OID) for its
> children must not be in 'web/pgadmin/browser/utils.py' file.
> Please create a inherited class of PGChildNodeView, and extend the
> functionality in it, and use it as the base class for all children of table.
>
> I will keep you posted for further review comments.
>
4.
URL definition of the javascript for tables & partition tables utility must
be exposed from the table/partition table module, and not from the database
module.
i.e.
No changes should be done in the database module for this feature. Hence -
I don't expect any change in the file:
web/pgadmin/browser/server_groups/servers/databases/__init__.py
-- Thanks, Ashesh
>
>
> --
>
> Thanks & Regards,
>
> Ashesh Vashi
> EnterpriseDB INDIA: Enterprise PostgreSQL Company
> <http://www.enterprisedb.com;
>
>
> *http://www.linkedin.com/in/asheshvashi*
> <http://www.linkedin.com/in/asheshvashi;
>
> On Fri, Jun 23, 2017 at 6:55 PM, Harshal Dhumal <
> [email protected]> wrote:
>
>> Hi,
>>
>> Please find attached patch for partition support.
>>
>> This patch includes all the work done by Akashy and support for child
>> nodes (constraints, rules, index, triggers and partition itself ) under
>> partition node.
>>
>>
>> Thanks,
>>
>> --
>> *Harshal Dhumal*
>> *Sr. Software Engineer*
>>
>> EnterpriseDB India: http://www.enterprisedb.com
>> The Enterprise PostgreSQL Company
>>
>> On Tue, Jun 20, 2017 at 12:16 AM, Shirley Wang <[email protected]> wrote:
>>
>>>
>>>
>>> On Mon, Jun 19, 2017 at 1:59 AM Akshay Joshi <
>>> [email protected]> wrote:
>>>
>>>> On Fri, Jun 16, 2017 at 11:16 PM, Shirley Wang <[email protected]>
>>>> wrote:
>>>>
>>>>> Looks good. I noticed people clicking back and forth to the columns
>>>>> tab to remember which columns they've created while filling out the
>>>>> Expressions column. It might be better to have a list of the columns and
>>>>> the datatype above the 'Partition Keys' subnode and have columns as a type
>>>>> field rather than a drop down.
>>>>>
>>>>
>>>> I think we should not duplicate that data as we already have all the
>>>> information on "Columns" tab and by providing drop down user can select
>>>> columns from there only.
>>>>
>>>>>
>>>>> Also, I think the fields someone sees after selecting the Key type
>>>>> needs to depend on what they select. Seeing both Column and Expressions
>>>>> type field might lead someone to think they need to fill out both fields.
>>>>>
>>>>
>>>> We can't, because user can select one column and provide an
>>>> expression as partition key in this case we will have to show both the
>>>> columns in subnode control. Anyways when user select columns I have
>>>> disabled the expression cell and if user selects expression column cell is
>>>> disabled.
>>>>
>>>
>>> Ah I see what you mean. What I meant was that the column would change
>>> depending on if someone selects Column or Expressions from the dropdown
>>> [image: expression.png]
>>> Can a user select more than one key type? The use case I can see where
>>> hiding 'Columns' or 'Expressions' would fail is if someone can create an
>>> expression key type and a column key type.
>>>
>>> Disabling a feature is one way to guide user behavior, but it doesn't
>>> provide enough context for someone to understand why it's disabled. It's
>>> better to only display what is absolutely necessary and hide fields that
>>> are unrelated to the workflow.
>>>
>>> Typically, disabling a UI element is useful when that disabled UI
>>> element also provides some context or value while disabled. In this case,
>>> I'm not sure it is.
>>>
>>> If hiding options isn't possible, providing some text in the fields
>>> (like N/A or --) would be helpful.
>>>
>>>
>>>
>>>>
>>>>> [image: coluns_partitioning.png]
>>>>> When is the 'In' column in the Partitions subnode enabled?
>>>>>
>>>>
>>>> In case of 'List' Partition.
>>>>
>>>
>>> It would improve the experience if the 'In' column was removed when a
>>> user selects 'Range' partitions then. And then if a user is creating a
>>> 'List' partition, 'From/To' should be hidden. In this case, 'From/To' and
>>> 'In' are dependent on that first drop down step, so seeing 'In' while on
>>> 'Range partitions' (and 'From/To' on 'List partitions') is not providing
>>> any value.
>>>
>>>
>>>>
>>>>> For the NoteControl on the bottom, what do 'Mode Control' or 'Attach
>>>>> Mode' refer to? And how can I tell the difference between 'Create Mode' and
>>>>> 'Edit Mode'?
>>>>>
>>>>
>>>> 'Mode control' is a switch control in subnode control that should be
>>>> "Mode switch control". 'Create Mode' is when user creates the new table by
>>>> clicking create-> table and 'Edit Mode' is when user open the properties
>>>> dialog for the existing table. In case of 'Edit Mode' there are two ways
>>>> user can create/attach partitions. In Attach mode we will identify and list
>>>> down the suitable tables to be attached.
>>>>
>>>
>>> I see. Describing these various states is great in case a user needs it.
>>> What are your thoughts on having it live in the documentation of pgAdmin4
>>> rather than in the dialog? This seems to be the established pattern for all
>>> other explanations.
>>>
>>>>
>>
>
Attachments:
[image/png] expression.png (69.8K, 3-expression.png)
download | view image
[image/png] coluns_partitioning.png (78.6K, 4-coluns_partitioning.png)
download | view image
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Subject: Re: [pgadmin-hackers] Declarative partitioning in pgAdmin4
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