query only column 1

No. Read the columnDefs.targets option reference page.

You are not paying attention to my previous comments. And/or you are not reading the FAQ:

Some DataTables options need to be given JavaScript array literals, such as in the case of the DataTables order option, which controls the initial sort order for a table. However, using square brackets ([ and ]) inside a shortcode confuses the WordPress parser, so these characters must be URL-escaped (into %5B and %5D, respectively).

Since you are asking questions that already have answers in many, many, places, this is the last time I will respond to this thread.