Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: arvindKandpal-ksolves

doc/modules/cassandra/pages/managing/tools/cqlsh.adoc

@@ -463,8 +463,8 @@ See `shared-copy-options` for options that apply to both `COPY TO` and
 
 [NOTE]
 ====
-`COPY TO` only supports printable characters in text column values, in
-accordance with RFC 4180. Text columns containing control characters
+`COPY TO` exports CSV using a restricted RFC 4180-compatible format and does not
+preserve control characters in text column values. Text columns containing control characters
 such as newlines (`\n`), carriage returns (`\r`), null bytes (`\x00`),
 or other non-printable characters cannot be reliably exported — values
 will be corrupted on re-import via `COPY FROM`. Beyond data integrity,