In PostgreSQL, the same
function name can be used for different function definitions as
long as the number of arguments or their types differ. Tcl,
however, requires all procedure names to be distinct. PL/Tcl
deals with this by making the internal Tcl procedure names
contain the object ID of the function from the system table
pg_proc as part of their name.
Thus, PostgreSQL functions with
the same name and different argument types will be different Tcl
procedures, too. This is not normally a concern for a PL/Tcl
programmer, but it might be visible when debugging.
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