Hi Smita,

You can exempt particular columns from searching by not specifying them in the target columns. As an example :

$.uiTableFilter($target_table, phrase, target_columns);

the above code will consider searching the "phrase" only in the columns specified in target_columns array.
Same is done in PMA for filtering on-screen rows on "Browse" tab for a table.
You can see the code for it in sql.js from line number 413 as of current master.

 
Regards,
Ashutosh Dhundhara