Re: parameters in functions and overlap with names of columns

Ivan Sergio Borgonovo <mail@webthatworks.it> writes:
> Pavel Stehule <pavel.stehule@gmail.com> wrote:
>> yes - the most common is an using of prefix '_' for local plpgsql
>> variables. Other possibility is using qualified names.

> Just to be sure... by qualified names you mean schema qualified name
> or table qualified names in case of columns... right...

Right.  The plpgsql parser is (just barely) smart enough to not try
to substitute a local variable name for the second part of a qualified
name "a.b".  So you could write "tab.col1" in your queries.

            regards, tom lane