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mjsonline
New Member

Inserting Records - Primary Key set to database sequence?

Hi there,

 

I'm creating an application to insert records into a Postgres database, but having problems with the Primary Key.

 

Powerapps is insisting that I try to set a value, despite the database being set to default new records to the next value in the sequence.

 

Is there anyway I can force PowerApps to rely on the database sequence?

10 REPLIES 10
Tom_Slosse
Memorable Member
Memorable Member

Hey @mjsonline,

 

 

Is your primary key in your Postgre Database an incremental ID?

 

So that means that if a db has an incremental ID, PowerApps will not ask you to give a value for that in for example a Patch function. If it doenst have an incremental ID it will ask to give a primary key for each record you wanna save.

 

Kind regards

 

 

Tom



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Hi Tom,

I have the same issue,

 

Hi for all.  I created an mssql database with primary key and auto increment 'id' column. Sql connector(insert row action) didn't ask me 'id' column on connector as supposed because database is automatically insert 'id' column.

 

However with postgres insert row action, flow asks me 'id' column whatever i do. Beside it didn't work stable.With 'stable' , i mean that: Sometimes(very rare) even if insert row action failed, it insert the datas with correct id. But i can't see the logs.

 

I though that my database table settings is wrong but i can insert data manually without insert 'id' column cause it is auto incremented.

 

I tried that:

BIGINT instead INT ---> Didn't work

My_Table_id_seq && primary key && unique && not null ---> Didn't work

 

Please help is this because of flow or because of me?

 

 

 flowask.png

By the way i started my postgres database inside docker container.

Docker env: Azure VM ubuntu 16.04

Flow env: Windows 10.

Used on-premises data gateway

Hey @Ramazan_BIYIK

 

 

I don't have much experience with Postgre database and how to set them up.

I encountered this same issue with a SQL database and I changed my ID column to a Auto Increment ID, and also made it the primary ID of the table, and that worked fine for me.

 

So my ID is a INT, NOT NULL and the primary key.

 

So I assume it must be the same for all databases.

 

 

And are you building a PowerApp or a Flow?

 

Kind regards

 

 

Tom



If this reply has answered your question or solved your issue, please mark this question as answered.

Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up.

Wow! That was quick.

 

In sql you can easily make identity column with right click(with mssql program). In postgres u have to type to default section '

nextval('issue_infos_id_seq'::regclass)

'

It suppose to be worked the same way. But i could't figure out why 

Hey @Ramazan_BIYIK

 

 

And what if you lose the ::regclass does that solve anything?

 

And how did you configure your table? with the GUI or via a query?

I suppose your query could look something like this:

CREATE SEQUENCE id_seq;
CREATE TABLE user (
    user_id int NOT NULL DEFAULT nextval('id_seq')
);

but don't quote me on that because I'm not a Postgre specialist 🙂 

 

Kind regards

 

 

Tom



If this reply has answered your question or solved your issue, please mark this question as answered.

Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up.

Hi T

I tried to delete 'REGCLASS' but didn't work. It(postgres) has auto complete. Even if i delete REGCLASS, it is coming back after few second. My mind is stuck on that: I can achieve my goal with sql but can't achieve with postgres even though every column properties are the same with sql database.

Hey @Ramazan_BIYIK

 

 

 

But you do need to get it working with Postgre?

Because if it is working with SQL, I just would make my solution with SQL instead of Postgre because SQL is much easier (in my opinion) than Postgre.

 

Please let me know if you need it to work in Postgre, I will ask for some information on Postgre how to set it up properly for PowerApps.

 

Kind regards

 

 

Tom



If this reply has answered your question or solved your issue, please mark this question as answered.

Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up.

My company prefers postgres (with s postgres fans are very sensitive about it :)) due to its security and cost. So i should use postgres.If I cant figure out with postgres i am allowed to use sql connection and mssql database with flow.  If you can ask , it would be appreciated.

Anonymous
Not applicable

Hi, Could you give me a hand? I am beggining to use powerapps and CDS I have created a custom entity (CDS), the issue is that I can insert multiple rows at the entity with the same primary key! I have a field at the form (powerapps Application) to create a unique code for each item that the user will add. So, I would like to validate, that the new code does not already available at the entity. I'll appreciate any comment Regards,

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