backslash separated values for a field

Hi,

i have a field "x" which can be of the form

abc\def\123

i.e. they are back slash separated fields

is there any operator in postgres which can process a query like give me all xs where x is abc

is ther any opeartor like contain, so i can form a query of the form:

select * from table_name where x contains 'abc';

thanks,
regards

Surabhi