Re: Sv: how to build this query ??? Please help !!!

> [...]
> SELECT a_nr,
> (SELECT count(*) FROM cylinders WHERE z_a_nr = a_nr) AS #cylinder,
> [...]
> FROM orders
> [...]

Is this a documented feature? Where can I find more information about
this?  I do not want to join the actual discussion about documentation
of PostgreSQL but I never before have seen such a construct in SQL!

Best regards, Jens Hartwig

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Jens Hartwig
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debis Systemhaus GEI mbH
10875 Berlin
Tel.     : +49 (0)30 2554-3282
Fax      : +49 (0)30 2554-3187
Mobil    : +49 (0)170 167-2648
E-Mail   : jhartwig@debis.com
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