IsDeadlock returns true if the given error indicates that we found a deadlock.

IsDup returns true if the given error indicates that we found a duplicate record.

IsNotFound returns true if the given error indicates that a record could not be found.

Run runs fn with the given database connection.

RunInTx runs fn in a database transaction.

RunInTxWithRetry is like RunInTx but will retry several times with exponential backoff.

RunInTxWithRetryBackoff is like RunInTxWithRetry but with configurable backoff.

RunWithRetryBackoff is like RunWithRetry but with configurable backoff.