Sven Kerkling wrote:
> This one ist the burden, running at least 100 seconds:
> 
>     SELECT b.id, b.status
>     FROM export b, masterNew mb
>     WHERE mb.sperre IS NULL
>       AND mb.status IS NULL
>       AND b.id = mb.id
>     LIMIT 100;
> 
> http://explain.depesz.com/s/eAqG

I think the problem is here:

Bitmap Index Scan on masterNew_2016_pi_idx (cost=0.00..5.34 rows=181 width=0) 
(actual time=805.225..805.225 rows=4,764,537 loops=1)

Perhaps you should ANALYZE "masterNew" to get better statistics.

Yours,
Laurenz Albe

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