Chris, Tom:
Yes, thank you Chris, I meant a builtin SQL function.
> > Given the amount of qoute nesting we do in Postgres, I thought that
> we need a
> > function that handles automatic doubling of quotes within strings.
> I've
> > written one in PL/pgSQL (below). I'd really love to see this
> turned into a
> > builtin C function.
>
> What does this do that isn't already done by quote_literal?
Well, first off, quote_literal isn't in the documentation under
"Functions and Operators". So this is the first I've heard about it
-- or probably anyone else outside the core team. How long has it
been around?
Second, double_quote does not return the outside quotes, just the
inside ones ... it's for passing string values to EXECUTE statements.
However, now that I know that quote_literal exists, I can simplify
the double_quote statement considerably.
Therefore, I withdraw my initial request, and request instead that
quote_literal be added to the function documentation in String
Functions and Operators.
I will event supply text for the functions table:
function returns
quote_literal(string text) text
explain
Returns the entire string passed to it, including quote marks. Useful
for nesting quotes, such as in the EXECUTEing dynamic queries.
example result
quote_literal('O''Reilly') 'O''Reilly'
-Josh Berkus
-Josh Berkus
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