Just got an error while upgrading to 5.1. Everything was a success on the upgrade process but i got an error on the "DotNetNuke.Data.SqlDataProvider". While the site looks like its functioning after the upgrade, i'm afraid it might be an issue later. The specific log is attached. Any ideas to fix? Thanks.

System.Data.SqlClient.SqlException: Table 'EventLog' already has a primary key defined on it.
Could not create constraint. See previous errors.
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async)
   at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
   at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
   at DotNetNuke.Data.SqlDataProvider.ExecuteADOScript(String SQL)
   at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions)

/* Change primary key of EventLog Table */
/****************************************/

IF NOT EXISTS (SELECT 1 FROM INformATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'dbo.EventLog' AND COLUMN_NAME = 'LogEventID')
    BEGIN
        --Note this name does NOT have an object qualifier in 4.x upgrades
        IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'PK_EventLogMaster'))
            ALTER TABLE dbo.EventLog
                DROP CONSTRAINT PK_EventLogMaster

        --Note this name does have an object qualifier in 5.x installs
        IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'PK_EventLogMaster'))
            ALTER TABLE dbo.EventLog
                DROP CONSTRAINT PK_EventLogMaster

        ALTER TABLE dbo.EventLog
            ADD LogEventID bigint NOT NULL IDENTITY (1, 1)
           
        ALTER TABLE dbo.EventLog
            ADD CONSTRAINT PK_EventLogMaster PRIMARY KEY CLUSTERED ( LogEventID )    
    END

Ok i thought so, just making sure. tnx

 The issue will be fixed in DNN 5.1.1 - if you want to be safe, wait.