| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | ganesanm <ganesanm(at)technauts(dot)com> |
| Cc: | pgsql-interfaces(at)postgresql(dot)org, Michael Meskes <meskes(at)postgresql(dot)org> |
| Subject: | Re: How do I select nth row from a table |
| Date: | 2000-04-20 03:14:13 |
| Message-ID: | 402.956200453@sss.pgh.pa.us |
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| Lists: | pgsql-interfaces |
ganesanm <ganesanm(at)technauts(dot)com> writes:
> How can I incorporate this query in an embedded sql ??
> I tried the following but ecpg returned error on the last
> line.
> exec sql
> select mfl_size into :mfl_size
> from mail_file_dtl
> where mfl_recipient = :mfl_recipient
> order by mfl_file_name limit 1 offset = :nNumber ;
> Can a variable name be used in the offset option to pass
> the value ?
It looks like not, at the moment. I think the grammar for ecpg
needs to accept a "cvariable" in places where the underlying
backend grammar only accepts an ICONST. It's probably too late
to fix this for 7.0, but it should be a todo item for 7.1...
regards, tom lane
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