Hi,
Just came across a broken example in the docs:
local:marko=#* select * from extended_sales(1);
ERROR: column reference "quantity" is ambiguous
LINE 1: SELECT quantity, quantity * price FROM sales
^
DETAIL: It could refer to either a PL/pgSQL variable or a table column.
QUERY: SELECT quantity, quantity * price FROM sales
WHERE itemno = p_itemno
CONTEXT: PL/pgSQL function "extended_sales" line 3 at RETURN QUERY
Patch to fix this attached.
.marko
*** a/doc/src/sgml/plpgsql.sgml
--- b/doc/src/sgml/plpgsql.sgml
***************
*** 487,494 **** $$ LANGUAGE plpgsql;
CREATE FUNCTION extended_sales(p_itemno int)
RETURNS TABLE(quantity int, total numeric) AS $$
BEGIN
! RETURN QUERY SELECT quantity, quantity * price FROM sales
! WHERE itemno = p_itemno;
END;
$$ LANGUAGE plpgsql;
</programlisting>
--- 487,494 ----
CREATE FUNCTION extended_sales(p_itemno int)
RETURNS TABLE(quantity int, total numeric) AS $$
BEGIN
! RETURN QUERY SELECT sales.quantity, sales.quantity * sales.price FROM
sales
! WHERE sales.itemno = p_itemno;
END;
$$ LANGUAGE plpgsql;
</programlisting>
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