This module includes the + method. It is included in
StringExpression and can be included elsewhere to allow the use of
the + operator to represent concatenation of SQL
Strings:
Public Instance Methods
+(ce)click to toggle source
Return a StringExpression representing the concatenation of the
receiver with the given argument.
:x.sql_string + :y => # "x" || "y"
# File lib/sequel/sql.rb, line 898def+(ce)
StringExpression.new(:'||', self, ce)
end