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help / color / mirror / Atom feedFrom: Ashesh Vashi <[email protected]>
To: Akshay Joshi <[email protected]>
Cc: Harshal Dhumal <[email protected]>
Cc: pgadmin-hackers <[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: Tue, 4 Jul 2017 15:59:02 +0530
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On Mon, Jul 3, 2017 at 3:14 PM, Akshay Joshi <[email protected]>
wrote:
> Hi Ashesh
>
> On Fri, Jun 30, 2017 at 12:46 PM, Ashesh Vashi <
> [email protected]> wrote:
>
>> 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.
>>>
>>
> Committed.
>
>>
>>> 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
>>
>
> Fixed.
>
> Apart from above this patch contains test cases as well.
>
One bug:
If I rename the partitioned table from the properties dialog, and attach a
partition at the same time, then - it generates wrong modified queries.
-- Thanks, Ashesh
>
>> -- 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.
>>>>>
>>>>>>
>>>>
>>>
>>
>
>
> --
> *Akshay Joshi*
> *Principal Software Engineer *
>
>
>
> *Phone: +91 20-3058-9517Mobile: +91 976-788-8246*
>
Attachments:
[image/png] coluns_partitioning.png (78.6K, 3-coluns_partitioning.png)
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[image/png] expression.png (69.8K, 4-expression.png)
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Subject: Re: [pgadmin-hackers] Declarative partitioning in pgAdmin4
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