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>Chapter 11. R Function Names</H1
><P
> In PostgreSQL, one and the same function name can be used for different
functions as long as the number of arguments or their types differ.
R, however, requires all function names to be distinct. PL/R deals with
this by constructing the internal R function names as a concatenation of
the string <SPAN
CLASS="QUOTE"
>"PLR"</SPAN
> with the object ID of the procedure's
<TT
CLASS="STRUCTNAME"
>pg_proc</TT
>. Thus, PostgreSQL functions with the same
name and different argument types will be different R functions too. This
is not normally a concern for a PL/R programmer, but it might be visible
when debugging.
</P
><P
> If a specific, known, function name is needed so that an R function can
be referenced by one or more PL/R functions, the
<CODE
CLASS="FUNCTION"
>install_rcmd(text)</CODE
> command can be used.
See <A
HREF="plr-global-data.html"
>Chapter 5</A
>.
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