Re: Function definition regression in 15beta1 when specific parameter name (string) is used

On 5/29/22 09:46, Alastair McKinley wrote:
> Hi all,
>
> I was testing an existing codebase with 15beta1 and ran into this issue.
>
> I reduced the test case to an example with works in 14.3, and fails in 15beta1.
>
> The following function definition fails in 15beta1 (ok in 14.3):
>
> create or replace function regexp_match_test(string text,pattern text) returns text[] as
> $$
> select regexp_match(string,pattern);
> $$ language sql;
>
> The error message is:
>
> ERROR: syntax error at or near ","
> LINE 3: select regexp_match(string,pattern);
> ^
> Changing the first parameter name from string to anything else (e.g. strin or string1) resolves the issue.
>
> The issue also occurs with the "string" parameter name if this is used in a plpgsql function like this:
>
> create or replace function regexp_match_test(string text,pattern text) returns text[] as
> $$
> begin
> return (select regexp_match(string,pattern));
> end;
> $$ language plpgsql;
>
> Best regards,

Postgres 15:

https://www.postgresql.org/docs/15/sql-keywords-appendix.html

STRING reserved (can be function or type) non-reserved

Postgres 14:

https://www.postgresql.org/docs/14/sql-keywords-appendix.html

STRING non-reserved

I don't have a 15 instance available, but I would double quoting
"string" would work.

>
> Alastair
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com