Re: work on some tables in the same time.

Thanks, but:

testdb=#CREATE VIEW tableselecttemp AS SELECT DISTINCT f1, f2, f3 FROM
table1_n;
ERROR: DISTINCT not supported in views

Jerome.

Ian Turner wrote:
>
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> > I want to execute this query on some table2 in the same time :
> >
> > INSERT INTO table2_n(f1, f2, f3)
> > SELECT DISTINCT f1, f2, f3 FROM table1_n ;
>
> One way would be to do:
> BEGIN
> CREATE VIEW tableselecttemp AS
> SELECT DISTINCT f1, f2, f3 FROM table1_n;
> INSERT INTO table2_n(f1, f2, f3) SELECT * FROM tableselecttemp;
> INSERT INTO table2 (f1, f2, f3) SELECT * FROM tableselecttemp;
> DROP VIEW tableselecttemp;
> ROLLBACK;
>
> Alternatively, run the select query twice without the temporary
> view. You'll have to try it both ways, on a realistic data set, to see
> which is faster for you.
>
> Ian
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