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Nito wrote in Spanish that after UPDATE STATISTICS HIGH on one table, queries returned no data, while MEDIUM on the same table returned correct results. Pablo Herrero asked for details, then only said that updating statistics does not guarantee the optimal query execution. No cause or fix was identified.
Auto-generated by Claude from the posts below — may be imperfect; read the full thread.
Nito — — source: Informix-list mailing list archive (1991-1998)
En plataforma Informix
hago update statistics con HIGH y me fallan las querys
lo cambio a MEDIUM y la query retoma los valores correctos
Alguien sabe porue puede suceder esto
gracias.
↪ replying to Nito
Pablo Herrero — — source: Informix-list mailing list archive (1991-1998)
In article <876onn$p2114@nova.entelchile.net>,
"Nito" <haraya@cmp.cl> wrote:
> En plataforma Informix
>
> hago update statistics con HIGH y me fallan las querys
> lo cambio a MEDIUM y la query retoma los valores correctos
>
> Alguien sabe porue puede suceder esto
>
> gracias.
>
>
Se un poco mas explicito y dinos en que te falla.
Un saludo
--
Pablo F Herrero Fernandez
Gijon
Asturias (Spain)
Sent via Deja.com http://www.deja.com/
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↪ replying to Pablo Herrero
Nito — — source: Informix-list mailing list archive (1991-1998)
Sucede que no me rescata informacion alguna cuando realizao un update
statistic high a una tabla en particular, pero si le realizo update
statistics medium a la misma tabla, entonces si me entrega la informacion.
↪ replying to Nito
Pablo Herrero — — source: Informix-list mailing list archive (1991-1998)
Hola Nito:
El problema es que hacer update statistic no garantiza que la consulta
se ejecute de la forma m's optima posible.
In article <87a84h$pkr2@nova.entelchile.net>,
"Nito" <haraya@cmp.cl> wrote:
> Sucede que no me rescata informacion alguna cuando realizao un update
> statistic high a una tabla en particular, pero si le realizo update
> statistics medium a la misma tabla, entonces si me entrega la
informacion.
>
>
--
Pablo F Herrero Fernandez
Gijon
Asturias (Spain)
Sent via Deja.com http://www.deja.com/
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