Incorrect error code returned for AlreadyExists error

[michael-the-grey]

Code generated to check if the row already exists.

if err != nil {
	if strings.Contains(err.Error(), "already exists") {
		return nil, grpc.Errorf(codes.AlreadyExists, err.Error())
	} else {
		return nil, grpc.Errorf(codes.Unknown, err.Error())
	}
}

Format of the AlreadyExists error.

spanner: code = "AlreadyExists", desc = "Row [<field_value>] in table <table_name>."

The code for Unknown will always be returned for AlreadyExists errors

[iamneal]

Newest version of persist no longer checks for error types at all, making this ticket not relevant anymore. I will open a ticket for better error handling as a feature