postgresql duplicate key violates unique constraint Call it a "bug by design", but it seems that you have to manually reset the a primary key index after restoring from a dump file At any rate, to see if your values are out of sync, run these two commands: If the first value is higher than the second value, your sequence is out of sync
Resolving duplicate key value violates unique constraint in PostgreSQL The 'duplicate key value violates unique constraint' error in PostgreSQL can be resolved by identifying and addressing duplicate values, modifying insert statements to handle conflicts, cleaning up existing data, and reviewing application logic By following the steps outlined in this guide, you can effectively troubleshoot and resolve this
Fixing PostgreSQL Error: Duplicate Key Violations Duplicate key violations occur in PostgreSQL when an INSERT or UPDATE operation attempts to insert or modify a record that would violate a unique constraint, commonly due to a primary key or unique index
How to Fix Duplicate Key Value Violates Unique Constraint in PostgreSQL . . . Fixing the duplicate key value violates unique constraint error doesn’t have to be a nightmare With the right tools and a bit of humor, you can tackle it like a pro Whether you’re dealing with duplicate data, out-of-sync sequences, or race conditions, this guide has you covered
Fixing table structure to avoid `Error: duplicate key value violates . . . At a later point some records are inserted without id and they fail with the error: Error: duplicate key value violates unique constraint Apparently the id got defined as a sequence: Each failed insert increases the pointer in the sequence till it increments to a value that no longer exists and the queries succeed
postgresql - Duplicate key value violates unique constraint in Postgres . . . The problem is that, for some hard-to-discover reason, the sequence associated with the column id does not match the actual contents of the column You can fix it with this one-time intervention: 'teams_id_seq', coalesce(( select id+ 1 from teams order by id desc limit 1), 1), false); Read about Sequence Manipulation Functions
Hidden dangers of duplicate key violations in PostgreSQL and how to . . . The “duplicate key violates unique constraint” error notifies the caller that a retry is needed This seems like an intuitive approach, but relying on this optimistic insert can quickly have a negative performance impact on your database
How to fix postgresql duplicate key violates unique constraint? Shortly after migrating a db from Microsoft SQL to Postgresql, I was trying to add new record only to face with issue: Original exception was: (psycopg2 errors UniqueViolation) duplicate key value violates unique constraint "some_table_pkey" DETAIL: Key (id)=(2) already exists