left join : SQL -- MIDRANGE-L

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select count(*) from
      DEVLIB/MASTERF A

             WHERE        A.PIOTY='S' AND A.PSTRH
IN('9K','8U')
gets me 673 records.
-----------
dspfd devlib/BOOKf--> 5822443
dspfd devlib/MASTERF--> 1940039
--------
Ideally
the below query should get me 673 records,
but SQL keeps running for several minutes and fetch me unlimited
number of records.
SELECT A.*,B.PSTRH,B.QNTY,B.VATAMT
FROM DEVLIB/MASTERF A left join
DEVLIB/BOOKF B
ON A.PSTRH = B.PSTRH
WHERE        A.PIOTY='S' AND A.PSTRH in('9K','8U')
does anyone see anything wrong here?

From: "Stone, Joel" <Joel.Stone@xxxxxxxxxx>
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxx>
Sent: Tuesday, 15 January 2013, 20:07
Subject: RE: SQL help - Data base conversion mapping error. 0 fields in error.

This particular file definition pre-dates me at this company by about 20 years :)

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Tuesday, January 15, 2013 1:17 PM
To: Midrange Systems Technical Discussion
Subject: RE: SQL help - Data base conversion mapping error. 0 fields in error.

Still using DDS to define files, aren't you?

Rob Berendt

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