Error: duplicate key value violates unique constraint

[Salima Begum]

Hi all,

When I am posting data in the server here we have an issue where the primary key already exists. For example, today I posted some data . I have the same issue. I solved the issue by deleting data from that particular table and then I am able to post data. Next day if I try to post data I am having the same issue with the primary key already exists. Why this is happening I am not able to understand.  On the server I am getting this issue where as in local I don't have any issue.

Please help me to understand why I am having this issue.

```

django.db.utils.IntegrityError: duplicate key value violates unique constraint "trades_trade_table_pkey"
DETAIL: Key (id)=(2) already exists

```

Thank you

~Salima

[Shams Ulhaq]

Make an other constraints pk and your issue is solved django by default  make a pk as id 

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