Re: executemany question
Gerhard Häring <[email protected]>
| Newsgroups | gmane.comp.python.db.pypgsql.user |
|---|---|
| Message-ID | <[email protected]> |
Steve Waterbury wrote:
> Gerhard Häring wrote:
>> executemany is not supposed to be used with SELECTs. Use it for INSERT
>> or UPDATE only.
>
> Thanks ... I realized that right after I send my
> question! :^)
>
>> [...]
>> In your particular example:
>>
>> docnums = [3,4,5,6]
>> curs.execute("select * from docs where doc_number in %s", (docnums,))
>
>
> That doesn't seem to work either: [...]
Sorry, I meant to use a tuple instead of a list. So pyPgSQL will invoke
repr() on the parameter before inserting it into the SQL. AFAIC this
will currently work fine for ints and floats, but not much else. Also
note that this is one thing that won't work in other adapters like for
Oracle.
But you can always construct your SQL with the appropriate IN-clause
manually.
-- Gerhard
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