> An alternative approach is to make charin and text_char map empty > strings to the null character (\0), and conversely make charout and > char_text map the null character to empty strings. charout already > acts that way, in effect, since it has to produce a null-terminated > This way would have the advantage that there would still > be a reversible dump and reload representation for a "char" field > containing '\0' I more like this. IIRC some implementations allow storing a \0 in char(n) also. Then it is 8bit clean and can be used for a 1 byte number. Such values can usually only be inserted and selected with host variables. Andreas ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://www.postgresql.org/search.mpl
