Re: CREATE parametric partial INDEX within afunction body - Mailing list pgsql-general

On Monday 19 January 2009 22:49:17 Gerhard Heift wrote:
> On Mon, Jan 19, 2009 at 08:19:06PM +0100, Reg Me Please wrote:
> > Hi all.
> >
> > I have a maintenance PL/pgSQL function that needs to recreate a partial
> > index (not a REINDEX, though).
> > In the WHERE condition of the index I have one of the function arguments.
> > A plain "CREATE INDEX ... WHERE ..." will lead to a runtime error like
> > this:
> >
> > tmp2=# SELECT * FROM f_maint1( '20080401'::timestamptz );
> > ERROR:  there is no parameter $1
> > CONTEXT:  SQL statement "CREATE INDEX i_special_part ON t_atable(
> > col1,col2 ) WHERE col3 >= $1 "
> > PL/pgSQL function "f_maint1" line 28 at SQL statement
> >
> > To work this issue around I switched to dynamic SQL with "EXECUTE 'CREATE
> > INDEX ...' "
>
> What about
>
> EXECUTE 'CREATE INDEX bla ON t_table WHERE (col >= '
>
>   || pg_catalog.quote_literal($1) || ')';
>
> Regards,
>   Gerhard

Exactly what I did:

> > To work this issue around I switched to dynamic SQL with "EXECUTE 'CREATE
> > INDEX ...' "

The question remains, though.

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