Hello all,

The following patch quotes a table name when the :quotation value is set
for product features in sql.el mode, to prevent unanticipated SQL errors
in cases where the table name has something like a space (or other
reserved character) in it, as it may not be immediately apparent that
the user should have entered their quotation characters in the
sql-list-table prompt during sql-mode.

The previous behavior (no quoting) can be enabled in the user's config
file by adding something such as:

(sql-set-product-feature 'postgres :quotation nil)