pg_get_keywords () → setof record ( word text, catcode "char", barelabel boolean, catdesc text, baredesc text )Returns a set of records describing the SQL keywords recognized by the server. The
word column contains the keyword. The catcode column contains a category code: U for an unreserved keyword, C for a keyword that can be a column name, T for a keyword that can be a type or function name, or R for a fully reserved keyword. The barelabel column contains true if the keyword can be used as a “bare” column label in SELECT lists, or false if it can only be used after AS. The catdesc column contains a possibly-localized string describing the keyword's category. The baredesc column contains a possibly-localized string describing the keyword's column label status.