Re: Setting up functions in psql.
| От | Tom Lane |
|---|---|
| Тема | Re: Setting up functions in psql. |
| Дата | |
| Msg-id | 9077.1171601565@sss.pgh.pa.us обсуждение |
| Ответ на | Setting up functions in psql. (Paul Lambert <paul.lambert@autoledgers.com.au>) |
| Ответы |
Re: Setting up functions in psql.
|
| Список | pgsql-general |
Paul Lambert <paul.lambert@autoledgers.com.au> writes:
> What I am confused about is: Why does the creation of a function fail if
> a table it uses does not exist when the function itself is creating the
> table further up to where it references it?
Because the function isn't actually being *executed*, only
syntax-checked.
The syntax precheck isn't completely reliable, for this reason among
others, so you can turn it off via check_function_bodies = off.
However, I'm not sure but what the function would fail anyway at runtime
for the same reason. I think in a SQL function, it all gets parsed
before any is executed. (This could probably get fixed, if we thought
it was worth the trouble.)
> Secondly, and here's the obviously easy one that I'm having a mental
> blank trying to figure out... How would I execute a function (such as
> the above) from psql?
select "fnLoadAppraisals"();
regards, tom lane
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