Using Update with Postgresql

Oct 5, 2016 at 4:45 PM
I am using the statement to update a field in a table:
int rowsAffected = context.Update("Employees")
    .Column("\"LastLogin\"", loginTime)
    .Where("\"EmailAddress\"", emailAddr)
When it runs I get the following error:
An exception of type 'Npgsql.PostgresException' occurred in FluentData.dll but was not handled in user code

syntax error at or near ":"

In the Postgresql log I have the following enrty:
2016-10-05 12:42:00 EDT ERROR: syntax error at or near ":" at character 36
2016-10-05 12:42:00 EDT STATEMENT: update Employees set "LastLogin" = :"LastLogin" where "EmailAddress" = :"EmailAddress"

I have no idea where the ':' are coming from. BTW - If I run scontent.Sqli it works.

Do anyone have ant ideas?