Insert 'NULL' value in Postgres with Nim 0.19.1 without 'nil'

[ThomasTJdev]

I have been using nil to insert NULL values into my Postgres DB. Now when 
0.19.1 has phased out nil \- what to do?

I have tried with empty strings, "NULL", dbNull, etc., but I haven't found a 
solution.
    
    
    import db_postgres
    
    var db = connecToDB()
    
    db.exec(sql("""CREATE TABLE myTable (
                     id  SERIAL PRIMARY KEY,
                     name VARCHAR(50),
                     age INTEGER"""))
    
    discard insertID(db, sql"INSERT INTO myTable (name, age) VALUES (?, ?)", 
"John", 55)
    
    # How to insert a NULL value?
    discard insertID(db, sql"INSERT INTO myTable (name, age) VALUES (?, ?)", 
nil, 55)
    discard insertID(db, sql"INSERT INTO myTable (name, age) VALUES (?, ?)", 
"John", nil)
    
    
    Run