Re: Question about "Unrecognized SPI code" ...

=?ISO-8859-1?Q?Hans-J=FCrgen_Sch=F6nig?= <postgres(at)cybertec(dot)at> writes:
> ERROR: SPI_execute_plan failed executing query "INSERT INTO
> view_nonsense VALUES (10, 20)": Unrecognized SPI code 0
> CONTEXT: PL/pgSQL function "debug" line 4 at SQL statement

> SPI_result_code_string(int code) and PL/pgSQL don't seem to be aware of
> DO NOTHING rules.

Hmm. What's happening is that _SPI_execute_plan() initializes its local
result variable to 0, and then that ends up getting returned because the
execute-one-query loop executes zero times. Since 0 isn't a defined SPI
result code, this seems bad.

The question is what to return instead. Of the currently defined SPI
result codes, SPI_OK_UTILITY seems the closest, but it implies that
something happened when nothing did. Is it worth inventing a new
result code SPI_OK_NOTHING (or similar) to describe this case? That
would possibly imply changing a lot of SPI-using code to handle the
new result alternative.

regards, tom lane