lib/builder.js
function whereNull(column) {
    this._statements.push({
      grouping: 'where',
      type: 'whereNull',
      column: column,
      not: this._not(),
      bool: this._bool()
    });
    return this;
  }
function whereNull(column) {
    this._statements.push({
      grouping: 'where',
      type: 'whereNull',
      column: column,
      not: this._not(),
      bool: this._bool()
    });
    return this;
  }
function whereNull ( column ) { this . _statements . push ( { grouping : 'where' , type : 'whereNull' , column : column , not : this . _not ( ) , bool : this . _bool ( ) } ) ; return this ; }
Adds a `where null` clause to the query.
Adds a where null clause to the query .