Code
T2006 search-not-text
A table names a column in search that is no text. The text search of a table covers its own text columns.
Details
A choice, a number, a date and a list are no text, and neither is a vector column, which is searched with near. Both forms of search are held to it: the list of columns, and { columns, by }.
The fix
Name text columns in search. Where the words of another column must be found, keep them in a text column beside it, which a change writes or a from works out.